Request For Quotation Collective No: 9900009650 Vendor Code: 1000 Vendor Name: Orpic Vendor Name: Orpic City: Country: P.O. Box: PC: Contact Person: Email Address: Tel No: Orpic Refineries LLC Information THIS IS NOT AN ORDER Submission Date: 06.12.2016 Floating Date: 29.11.2016 P\C Officer: Telephone: Fax: Email: Abdulaziz Al Ghaithi Internal Number: 6000023441 abdulaziz.abdullah.alghaithi@orpic.om ABDULAZIZ.ABDULLAH.ALGHAITHI@O Submission Date & Location Kindly submit your Quotation on or before 06.12.2016 by 23:59:59 hrs. If supplier copies the procurement officer while submitting his offer, his bids/offer will be rejected. Submission Details Quotations and technical submissions (if applicable) shall be submitted by email to procurement@orpic.om. The email subject line shall include the RFQ Collective Number. For any further clarifications, please contact the respective procurement officer on the Email printed above. Failure to comply with any of the submission instructions shall result in disqualification of the Quotation. For Payment concerns, please submit original invoice to Email : FINANCE.SERVICES@ORPIC.OM [Bidder to complete the following declaration in RFQ submission] Dear Procurement Officer Having carefully examined the Request For Quotation (RFQ) and its attached Instructions to Bidders and General Conditions for Purchases and Minor Services, we offer to supply the Goods and Services for the Prices submitted in this Quotation. We confirm that our Quotation is made in full conformity with the RFQ, the Instructions to Bidders, specifications, General Conditions for Purchases and Minor Services and all Clarifications and Addenda issued during the RFQ period. If our Quotation is accepted and a Purchase Order or Service Order issued by Orpic we agree to deliver the Goods and Services in full accordance with the RFQ and our Quotation. We agree to abide by this Quotation for a period of ninety (90) days from the Submission Date and it shall remain binding upon us and may be accepted at any time before the expiration of this period. Dated _. Page 1 of 15
Request For Quotation Collective No: 9900009650 Orpic Refineries LLC Signed _. Name:. Title: for and on behalf of _ Order Currency: Item No. Material Description Quantity UOM Unit Cost 10 1/2" Full Coupling ASTM A105, 3000#, SW 9 EA PO Item Text: 1/2" Full Coupling ASTM A105, 3000#, SW Line Cost 20 1/2"X1/2" Coupling A105,3000#,SWxNPT(F) 8 EA PO Item Text: 1/2" X 1/2" Coupling ASTM A105, 3000#, SW x NPT(F) 30 1/2" 90 ELBOW ASTM A105 CL3000 SW 17 EA PO Item Text: 1/2" 90 ELBOW ASTM A105 CL3000 SW PER ASME B16.11 40 1" 90 ELBOW ASTM A182 GR.F5 CL9000 SW 77 EA PO Item Text: 1" 90 ELBOW ASTM A182 GR.F5 CL9000 SW PER ASME B16.11 50 1-1/2" 90 ELBOW A182 GR.F5 CL9000 SW 27 EA PO Item Text: 1 1/2" 90 ELBOW ASTM A182 GR.F5 CL9000 SW PER ASME B16.11 60 3" 90 ELBOW A234 GR.WP5, LR, BW SCH160 4 EA PO Item Text: 3" 90 ELBOW ASTM A234 GR.WP5 SMLS LONG RADIUS BW PER ASME B16.9 SCH160 70 4" 90 ELBOW A234 GR.WP5 LR, BW SCH120 60 EA PO Item Text: 4" 90 ELBOW ASTM A234 GR.WP5 SMLS LONG RADIUS BW PER ASME B16.9 SCH120 80 4" 45 ELBOW A234 GR.WP5 LR, BW SCH120 6 EA PO Item Text: 4" 45 ELBOW ASTM A234 GR.WP5 SMLS LONG RADIUS BW PER ASME B16.9 SCH120 90 1" STRAIGHT TEE A182 GR.F5 CL9000 SW 21 EA PO Item Text: 1" STRAIGHT TEE ASTM A182 GR.F5 CL9000 SW PER ASME Page 2 of 15
Request For Quotation Collective No: 9900009650 Orpic Refineries LLC Item No. Material Description Quantity UOM Unit Cost B16.11 Line Cost 100 1-1/2" STRAIGHT TEE A182 GR.F5 CL9000 SW 14 EA PO Item Text: 1-1/2" STRAIGHT TEE ASTM A182 GR.F5 CL9000 SW PER ASME B16.11 110 3" STRAIGHT TEE A234 GR.WP5 BW, SCH160 4 EA PO Item Text: 3" STRAIGHT TEE ASTM A234 GR.WP5 SMLS BW PER ASME B16.9 SCH160 120 4" STRAIGHT TEE A234 GR.WP5, BW, SCH120 5 EA PO Item Text: 4" STRAIGHT TEE ASTM A234 GR.WP5 SMLS BW PER ASME B16.9 SCH120 130 1-1/2"X1" RED TEE A182 GR.F5 CL9000 SW 18 EA PO Item Text: 1-1/2"X1" REDUCING TEE ASTM A182 GR.F5 CL9000 SW PER ASME B16.11 140 4X3" RED TEE A234 GR.WP5 BW SCH120LX160S 7 EA PO Item Text: 4"X3" REDUCING TEE ASTM A234 GR.WP5 SMLS BW PER ASME B16.9 SCH120(L) X SCH160(S) 150 2"X1-1/2" CON REDUCER A234 GR.WP5 BW XXS 6 EA PO Item Text: 2"X1-1/2" CON REDUCER ASTM A234 GR.WP5 SMLS BW PER ASME B16.9 XXS(L) X XXS(S) 160 4X3" ECC RED A234 WP5 BW SCH120LXSCH160S 4 EA PO Item Text: 4"X3" ECC REDUCER ASTM A234 GR.WP5 SMLS BW PER ASME B16.9 SCH120(L) X SCH160(S) 170 4"X1" SOCKOLET A182 GR.F5 CL9000 32 EA PO Item Text: 4"X1" SOCKOLET ASTM A182 GR.F5 CL9000 MSS-SP97-TYPE 180 4"X1 1/2" SOCKOLET A182 GR.F5 CL9000 4 EA PO Item Text: 4"X1 1/2" SOCKOLET ASTM A182 GR.F5 CL9000 MSS-SP97-TYPE 190 1"X75L STRT NIPPLE A335 GR.P5 PE-PE XXS 14 EA PO Item Text: 1" STRAIGHT NIPPLE ASTM A335 GR.P5 SMLS PE-PE PER ASME B36.10M 75MM LENGTH XXS 200 1" COUPLING A182 GR.F5 CL9000 SW-SW 60 EA PO Item Text: 1" COUPLING ASTM A182 GR.F5 CL9000 SW-SW PER ASME B16.11 Page 3 of 15
Request For Quotation Collective No: 9900009650 Orpic Refineries LLC Item No. Material Description Quantity UOM Unit Cost Line Cost 210 1-1/2" COUPLING A182 GR.F5 CL9000 SW-SW 30 EA PO Item Text: 1-1/2" COUPLING ASTM A182 GR.F5 CL9000 SW-SW PER ASME B16.11 220 1" SPEC BLND A182 GR.F5 CL300 RF CA6.0MM 4 EA PO Item Text: 1" SPECTACLE BLIND ASTM A182 GR.F5 ASME-CL300 RF SMOOTH FINISH SPECTACLE BLIND C.A:6.0MM PER STD DWG 230 4" SPEC BLND A182 GR.F5 CL300 RF CA6.0MM 5 EA PO Item Text: 4" SPECTACLE BLIND ASTM A182 GR.F5 ASME-CL300 RF SMOOTH FINISH SPECTACLE BLIND C.A:6.0MM PER STD DWG 240 3" DRIP RING A182 GR.F5 CL300 RF 4 EA PO Item Text: 3" DRIP RING ASTM A182 GR.F5 CL300 RF WITH 1" DRIP HOLE 250 1" 90 ELBOW A105 CL3000 SW 6 EA PO Item Text: 1" 90 ELBOW ASTM A105 CL3000 SW PER ASME B16.11 260 1-1/2" 90 ELBOW A105 CL3000 SW 6 EA PO Item Text: 1-1/2" 90 ELBOW ASTM A105 CL3000 SW PER ASME B16.11 270 1" 45 ELBOW A105 CL3000 SW 4 EA PO Item Text: 1" 45 ELBOW ASTM A105 CL3000 SW PER ASME B16.11 280 1-1/2" 45 ELBOW A105 CL3000 SW 4 EA PO Item Text: 1-1/2" 45 ELBOW ASTM A105 CL3000 SW PER ASME B16.11 290 1" STRAIGHT TEE A105 CL3000 SW 3 EA PO Item Text: 1" STRAIGHT TEE ASTM A105 CL3000 SW PER ASME B16.11 300 1-1/2" STRAIGHT TEE A105 CL3000 SW 3 EA PO Item Text: 1-1/2" STRAIGHT TEE ASTM A105 CL3000 SW PER ASME B16.11 310 1"X 3/4" RED TEE A105 CL3000 SW 3 EA PO Item Text: 1"X 3/4" REDUCING TEE ASTM A105 CL3000 SW PER ASME B16.11 320 1-1/2"X 3/4" RED TEE A105 CL3000 SW 3 EA PO Item Text: 1-1/2"X 3/4" REDUCING TEE ASTM A105 CL3000 SW PER ASME B16.11 Page 4 of 15
Request For Quotation Collective No: 9900009650 Orpic Refineries LLC Item No. Material Description Quantity UOM Unit Cost 330 3/4" PLUG A105 ROUND HEAD NPT 6 EA PO Item Text: 3/4" PLUG ASTM A105 ROUND HEAD NPT PER ASME B16.11 Line Cost 340 3/4"X75L STRT NIPPLE A106 GR.B PE SCH80 6 EA PO Item Text: 3/4" STRAIGHT NIPPLE ASTM A106 GR.B SMLS PE-PE PER ASME B36.10M 75MM LENGTH SCH80 350 1" COUPLING ASTM A105 CL3000 SW-SW 3 EA PO Item Text: 1" COUPLING ASTM A105 CL3000 SW-SW PER ASME B16.11 360 1-1/2" COUPLING A105 CL3000 SW-SW 3 EA PO Item Text: 1-1/2" COUPLING ASTM A105 CL3000 SW-SW PER ASME B16.11 370 1" 90 ELBOW ASTM A105 CL3000 SW 30 EA PO Item Text: 1" 90 ELBOW ASTM A105 CL3000 SW PER ASME B16.11 380 1/2" STRAIGHT TEE ASTM A105 CL2000 NPT 6 EA PO Item Text: 1/2" STRAIGHT TEE ASTM A105 CL2000 NPT PER ASME B16.11 390 1" STRAIGHT TEE A105 CL3000 SW 3 EA PO Item Text: 1" STRAIGHT TEE ASTM A105 CL3000 SW PER ASME B16.11 400 1"X 3/4" REDUCING TEE A105 CL3000 SW 6 EA PO Item Text: 1"X 3/4" REDUCING TEE ASTM A105 CL3000 SW PER ASME B16.11 410 3/4"X75L STRT NIPPLE A106 GR.B PE SCH80 6 EA PO Item Text: 3/4" STRAIGHT NIPPLE ASTM A106 GR.B SMLS PE-PE PER ASME B36.10M 75MM LENGTH SCH80 420 3/4"X1/2" SWAGE A105 PE(L)-NPT(S) SCH80 6 EA PO Item Text: 3/4"X1/2" SWAGE NIPPLE ASTM A105 PE(L)-THREAD(S) NPT PER MSS SP95 SCH80 430 1/2" PLUG ASTM A105 ROUND HEAD NPT 6 EA PO Item Text: 1/2" PLUG ASTM A105 ROUND HEAD NPT PER ASME B16.11 440 1" FLANGE A182 GR.F5 CL300 RF SW SCH XXS 78 EA PO Item Text: 1" SOCKETWELD FLANGE ASTM A182 GR.F5 ASME-CL300 RF SMOOTH FINISH SW PER ASME B16.5 XXS 450 1-1/2" SW FLAG A182 GR.F5 CL300 RF XXS 17 EA Page 5 of 15
Request For Quotation Collective No: 9900009650 Orpic Refineries LLC Item No. Material Description Quantity UOM Unit Cost PO Item Text: 1-1/2" SOCKETWELD FLANGE ASTM A182 GR.F5 ASME-CL300 RF SMOOTH FINISH SW PER ASME B16.5 XXS Line Cost 460 2" FLANGE WNRF A182 GR.F5 CL300 SCH XXS 5 EA PO Item Text: 2" WELDNECK FLANGE ASTM A182 GR.F5 ASME-CL300 RF SMOOTH FINISH WN PER ASME B16.5 XXS 470 3" FLANGE A182 GR.F5 CL300 WNRF SCH160 42 EA PO Item Text: 3" WELDNECK FLANGE ASTM A182 GR.F5 ASME-CL300 RF SMOOTH FINISH WN PER ASME B16.5 SCH160 480 4" FLANGE A182 GR.F5 CL300 WNRF SCH120 42 EA PO Item Text: 4" WELDNECK FLANGE ASTM A182 GR.F5 ASME-CL300 RF SMOOTH FINISH WN PER ASME B16.5 SCH120 490 1" BLIND FLANGE A182 GR.F5 CL300 RF 45 EA PO Item Text: 1" BLIND FLANGE ASTM A182 GR.F5 ASME-CL300 RF SMOOTH FINISH PER ASME B16.5 500 1-1/2" BLIND FLANGE A182 GR.F5 CL300 RF 8 EA PO Item Text: 1-1/2" BLIND FLANGE ASTM A182 GR.F5 ASME-CL300 RF SMOOTH FINISH PER ASME B16.5 510 1' FLANGE A105 CL300 RF SW SCH80 4 EA PO Item Text: 1' FLANGE ASTM A105 ASME-CL300 RF SMOOTH FINISH SW PER ASME B16.5 SCH80 520 1-1/2" FLANGE A105 CL300 RF SW SCH80 4 EA PO Item Text: 1-1/2" FLANGE ASTM A105 ASME-CL300 RF SMOOTH FINISH SW PER ASME B16.5 SCH80 530 1" FLANGE A105 CL150 RF SW SCH80 12 EA PO Item Text: 1" SOCKETWELD FLANGE ASTM A105 ASME-CL150 RF SMOOTH FINISH SW PER ASME B16.5 SCH80 Page 6 of 15
Request For Quotation Collective No: 9900009650 Orpic Refineries LLC Total(In words): (A)Ex-Works Costs (B)CIF Costs (C) Custom Duty (D) COO Charge (E) Total Cost (B+C) Estimated Weight Page 7 of 15
Note for Bidders Scope of Work: Material specifications shall exactly match as specified in the Piping specification no. S 000 1360 001_R_0001 and Pipeclass A1A1, A2A!, MS11, H2A4. Mandatory Requirements: Bidder must quote for all the materials. Partial quotation will not be accepted Bidder must ensure approval of Material certificates from ORPIC before dispatch. Delivery Terms: Material to be delivered within 2 weeks after placement of Order. Ex stock materials with proper certificates are preferred. Delivery terms are DDP Incoterms 2010 at Orpic Sohar Refinery warehouse.
Sohar Refinery Company SOHAR Refinery Project PROJECT SPECIFICATION JOB No. JGC DOC. No. REV. 0-3100-25 S-000-1360-001 R DATE 24 Jul 2003 SHEET 1 OF 30 PREP D S. Ogino S.O CHK D T. Yamamoto T.Y APP D T. Amemiya T.A GENERAL SPECIFICATION OF PIPING FOR CONSTRUCTION SOHAR REFINERY COMPANY L. L. C. SOHAR REFINERY PROJECT SOHAR, SULTANATE OF OMAN Reference ITT Doc. No. S-000-1360-001 Rev B REV. DATE PAGE DESCRIPTION PREP D CHK D APP D 0 24-Jul-2003 All For Approval S.O T.Y T.A R 17-Jun-2004 4, 11, 24 For Construction (JY-OY-M-20492) A.T T.Y T.A INDRA 18-JUN-2004 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 2 of 30 CONTENTS INDRA 18-JUN-2004 1 SCOPE... 4 2 GENERAL... 4 2.1 Applicable Codes and Standards... 4 2.2 Related Engineering Specifications... 4 3 DESIGN GENERAL... 5 3.1 Design Philosophy... 5 3.2 Piping Design Data... 5 3.3 Composition of Piping System... 6 3.4 Insulation and Heat Tracing... 7 3.5 Piping Sizes... 7 3.6 Joints... 8 3.7 Valve Operation... 8 3.8 Valve Size... 9 3.9 Pipe Support... 10 3.10 Criteria for Thermal Expansion and Uneven Settlement... 11 3.11 Force and Moment on Mechanical Equipment... 11 3.12 Relief System Piping... 11 3.13 Piping for Instruments... 12 3.14 Drain and Vent... 13 3.15 Utility Station (Hose Station)... 14 3.16 Eye Washer and Shower... 14 3.17 Under-Ground Pressurized Piping... 15 3.18 Trench Piping... 15 3.19 Sample Connection... 15 3.20 Utility Piping... 15 3.21 Minimum Clearance... 16 3.22 Accessibility... 17 3.23 Pipe through Floors... 17 3.24 Pipe through Dike... 17 3.25 Foundation Height... 18 3.26 Escape Ladders... 18 4 PIPING AROUND EQUIPMENT... 18 4.1 Tower and Drum Piping... 18 4.2 Piping for Rotating Machines... 19 4.3 Heat Exchanger Piping... 20 4.4 Furnace Piping... 22 4.5 Tank Farm Piping... 22 4.6 Pipetrack (Pipe Sleeper) and Piperack Piping... 22 4.7 Jacketed Piping... 23 4.8 Steam Trace Piping... 23 5 PIPING DRAWING... 23 5.1 Plan and Each Isometric Drawing... 23 5.2 Preparation of Plan and Each Isometric Drawing... 23 5.3 Scale... 23 6 PRESSURE TESTING... 24 6.1 Pressure Testing Method... 24 6.2 Application of Pressure Testing... 24 09004ed5800ae399 A4.doc
APPENDIX Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 3 of 30 1. Valve Installation Guide... 26 2. Minimum Access Requirements... 27 3. Access Requirement for Orifice Flanges... 29 INDRA 18-JUN-2004 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 4 of 30 1 SCOPE (1) This Specification covers the General Requirements for piping design to be applied for the SOHAR REFINERY PROJECT. (2) The intent of this standard is not to supersede ASME piping code, but only to supplement it as required. 2 GENERAL 2.1 Applicable Codes and Standards (1) Design code ASME B 31.3-2002 ASME B 31.1-2001 UOP Standard spec. UOP Standard Dwg. : Process Piping : Power piping (For piping as part of steam generation system) : 1-14-1 Steam Heat Tracing 8-11-9 Piping 8-15-3 Large Catalyst Carrying piping Carbon and Alloy Steel 8-16-3 Large Catalyst Carrying piping Austenitic Stainless Steel 8-20-1 Strainers : 6-108-3 Thermowell and Skin Thermocouple Installation Assemblies 6-112-1 Piping Arrangements for Orifice Plate Installations (2) Material Specification : ASTM, API. NACE MR-0175 shall apply to the components on applicable lines which require the hardness limitation. (3) Dimensions (a) Pipe : ASME or API standard (b) Fitting : ASME or API standard (c) Flange : ASME standard (d) Valve : ASME, API and manufacturer s standard 2.2 Related Engineering Specifications INDRA 18-JUN-2004 - Basic Engineering Design Data S-000-1222-001 - Design Criteria for Piping and Instrument Diagrams and S-000-1225-001 Utility Flow Diagrams - Specification of Plant Layout and Spacing S-000-1360-002 - Specification of Piping Material S-000-1360-003 - Specification of Piping Flexibility and Stress Analysis Criteria S-000-1360-004 - General Specification for Cathodic Protection S-000-1387-001 - General Specification of Hot Insulation S-000-1390-001 - General Specification for External Coating of S-000-13A0-102 Underground Steel Pipe 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 5 of 30 3 DESIGN GENERAL 3.1 Design Philosophy The plant, equipment layout and relevant piping arrangement shall be performed in consideration of the following: (1) Construction and maintenance requirements Sufficient space shall be provided for the efficient/effective use of mobile equipment for the construction and maintenance work of the plant. (2) Operational requirements Easy access for daily operation/maintenance of various instruments, valves etc. shall be assured to enable proper and safe plant operation. (3) Safety requirements The roads, access-ways and fire fighting equipment shall be arranged in consideration of space requirement for safety, and advantage to taking prompt action in case of emergency. High risk facilities or equipment handling toxic or hazardous fluid, shall be segregated to minimize involvement of adjacent facilities in an emergency, and prevent further equipment failures. For the detailed criteria, refer to job specification S-000-1360-002. (4) Plant layout and spacing Plant layout and spacing for process unit and offsite facilities shall be applied in accordance with job specification S-000-1360-002. (5) Other requirements 3.2 Piping Design Data Equipment and piping shall be laid out/arranged to minimize the total length of pipes, especially large-size and low-alloy steel pipes. At the same time, the route of relevant electrical and instrument cables shall be laid out to minimize the total length of cable. (1) Design Code Piping in plant area shall be designed as per ASME B31.3 unless otherwise specified in P & I Diagram. (2) P & I Diagram Piping in Plant area shall be as per P & I Diagram. P & I Diagram shall show the limits of piping by each piping class and code. (3) Piping Material Piping material shall be in accordance with the job specification S-000-1360-003 which is developed from and supplemented to UOP specification. (4) Base elevation for piping design INDRA 18-JUN-2004 The base elevation for piping design shall be in accordance with the Basic Engineering Design Data of S-000-1222-001 Para. 9.2. 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 6 of 30 (5) Stress analysis design Line stress analysis design shall be conducted in accordance with the job specification S-000-1360-004. 3.3 Composition of Piping System 3.3.1 Composed Materials (1) Pipes For straight run portions of piping systems, pipes shall be applied. (2) Elbows and Bends (a) (b) (c) Change in direction of piping systems shall be made with elbows, bends (cold bend, high frequency induction bend and/or miter bend). Long radius elbows shall generally be used for piping of NPS 2 and over, except where design requirements dictate the application of short radius elbows. In case the Miter Bends are used, they shall be designed and fabricated in accordance with ASME B31.3. (3) Reducers and Reducing Components (a) (b) Change in piping sizes shall be made with reducers, reducing couplings, or reducing flanges. Reducer shall generally be of concentric type unless otherwise required. (4) Branch connections (a) (b) Branch connection of piping shall be made with branch materials (components) such as smooth or fabricated tees, sockolets, threadolets, welding outlets, etc., or welded pipe-to-pipe connection. The requirements for reinforcement of welded branch connections shall be as given in ASME B31.3. (5) Flanges (a) (b) Flanges shall be applied for piping connections at flanged equipment nozzles and in-line piping elements such as valves, strainers, instruments, etc. However, flanges shall also be provided where frequent dismantling of piping and/or maintenance required. Flanges shall be minimized in hydrogen service. (6) Valves INDRA 18-JUN-2004 (a) (b) (c) Valves shall be provided in accordance with P & ID for isolation of piping system, flow control, etc. Type of valves shall be in accordance with P & ID and piping classes. Car sealed open or close shall be in accordance with P & ID. 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 7 of 30 (7) Spectacle blinds, Blanks and Spacers (a) Spectacle blinds, blanks and spacers shall be installed in accordance with P & ID and piping classes. Size limits of spectacle blinds, blanks and spacers shall be shown below: Spectacle Blinds : 12 and smaller or 35 kg and lighter Blanks and Spacers : 14 and larger or heavier than 35 kg (b) The thickness of blanks and spacers shall be calculated for each line design conditions according to ASME B31.3 and it shall satisfy the minimum thickness requirements. (8) Strainers (a) (b) (c) (d) Strainers shall be provided as per P & ID requirement. The element mesh size of strainers shall be in accordance with UOP specification (8-20-1) and machinery vendors recommendation if any. The pump suction strainer type shall be as per Para. 4.2 unless otherwise specified. A fine mesh overlay or screen for pump and compressor suction may be installed for start up if required. This shall be removed or changed to permanent screen after start up operation. (9) Other specialty items Other specialty items shall be provided in accordance with P & ID as well as relevant specifications for each item. 3.4 Insulation and Heat Tracing (1) Application of insulation and heat tracing of piping shall conform to indication on P & ID. (2) The requirement of insulation shall be referred to job specification S-000-1390-001. (3) The personal protection zone at the operation platform shall extend 600 mm horizontally from periphery of the platform and 2,100 mm vertically above the ground or platform. Any hot piping passing through this zone shall be suitably insulated or covered with barriers, shields or open guards. The applicable temperature for personal protection shall be applied to piping in service 65 o C and higher in accordance with specification for hot insulation S-000-1390-001 Para. 3.4. 3.5 Piping Sizes (1) Nominal pipe size 1-1/4, 2-1/2, 3-1/2, 5, 7 and 9 shall not be used for metallic piping except in case the size is specified in P & ID or requirement by vendor. (2) Minimum size of piping components shall be as follows: Steel piping components : 1/2 NPS Steel tubing : 3/8 NPS INDRA 18-JUN-2004 (3) Where unusual sizes are required for connecting to equipment, piping is normally run in the next larger size after connection has been made unless otherwise restricted by special requirement. 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 8 of 30 3.6 Joints (4) Piperack or piperack header piping sizes shall maintain min. NPS 2 except auxiliary piping, such as steam tracers to avoid excess deflection. The max. Support spans and max. deflections are specified in Para. 3.9 (2). In case the actual span or deflection exceed these maximum limits, then the additional supports shall be provided. (1) Flanges of piping shall be a minimum in number, and provided only for ease of maintenance and inspection, or where construction or process conditions require. (2) Socket welded joints shall be limited to size NPS 1-1/2 or less. (3) All galvanized piping shall have threaded or flanged joints. (4) Threaded joints may be used for all size of galvanized piping and following lines in size NPS 2 and smaller. - Water and air service - Process and utility lines where the maintenance is required such as steam trap connection, Y-type strainer cleaning connection, instrument connection etc. But the thread joints shall not be used for lines with hydrogen service. (5) Butt-welded joints are preferable. (6) Seal welding shall generally not be applied to the screwed connections unless otherwise specified. Plug for hydrostatic test vent shall be seal welded after test. Orifice flange taps and plugs shall be seal welded where socket weld piping is specified 3.7 Valve Operation (1) In general, valves shall be located so that they can be operated at grade or from a platform. (2) In case of horizontal stem valves (including hand wheel for gear operation), the height of valve center shall be kept within 1.8 m from grade or platform. Where possible, valves shall preferably be located 1.2 m above grade or platform. Where the height of a valve stem is more than 1.8 m above grade or the operating floor, operating steps or chain operation shall be provided. However, chain operation shall be minimized and shall not be used for valves 2 NPS and smaller. In case, chain operated valve is used and the chain is at operational access, then a suitable hook shall be provided to hold the chain and prevent it from hanging freely which may otherwise obstruct and cause injury to the operator during an emergency escape. (3) Minimum access requirements for valves shall be as shown in Appendix 2. (4) In case of vertical stem valves, the maximum hand wheel height shall be 1.35 m above the operating floor, in general. Where the height exceeds the above mentioned level, an operating step shall be provided. (5) In case of valves located below platforms, if their hand wheels do not extend beyond the platform floors, extension stems shall be used. (6) In case of wrench operated valves, it shall be ensured that the adequate clearance shall be provided for wrench operation. INDRA 18-JUN-2004 (7) Valves NPS 16 and larger shall be placed in the horizontal plane (horizontal piping) as practical as possible. 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 9 of 30 (8) Motor operated valves shall be provided in accordance with P & I Diagram requirements. (9) APPENDIX 1 of this specification shall be used as a guide. 3.8 Valve Size (1) Unless otherwise specified in P&ID, pump suction strainers and valves including pump discharge valves shall be sized as follows: (a) (b) (c) Suction valve size and strainer size are same as line size where pump nozzle size is same or one size smaller than the line. Suction valve size and strainer size is one size smaller than the suction line where pump nozzle size is two or three sizes smaller than the line. In case where the pump discharge line size is 8 and larger, and discharge nozzle is two or more sizes smaller than discharge line size, check valves and discharge block valves may be a maximum of one size smaller than line size. For line sizes 6 and less the valve shall be same size as the discharge line size. (2) Valve at control valve manifolds shall be sized in accordance with the following table, unless otherwise shown on the Piping and Instrument Diagrams: (All dimensions are inches) Size is NPS Line Size Control Valve Size Block Valve Size By-pass Valve Size 3/4 3/4 3/4 3/4 1 3/4, 1 1 1 1-1/2 3/4 1, 1-1/2 1-1/2 1-1/2 1 1-1/2 2 3/4 1 2 2 1 1-1/2 1-1/2, 2 3 3/4 1 1-1/2 2, 3 4 3/4 1 1-1/2 2 3, 4 6 2 3 4, 6 8 3 4 6, 8 2 2 2 2 3 2 2 2 3 4 3 4 6 4 6 8 2 1 1-1/2 2 3 1 1-1/2 2 3 4 10 6 8, 10 8 10 8 10 12 8 10 10 12 10 12 14 10 12 12 3 4 6 4 6 8 INDRA 18-JUN-2004 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 10 of 30 3.9 Pipe Support (1) The loads which shall work on pipe supports, shall be calculated based on the following criteria: (a) Dead weight of pipe (b) Gas/Steam/Air : 0 Water : 1.0 (specific gravity) Other Fluids : Each fluid itself shall be used (c) (d) Valves, safety valves and control valves shall cause concentrated loads Weight of insulation as per its specific gravity (2) The support spans of horizontal piping and of vertical piping shall be as shown below: NPS Maximum Span 1/2 3.5 m 3/4 4.0 m 1 4.5 m 1-1/2 5.5 m 2 6.0 m 3 7.0 m 4 8.0 m 6 9.0 m 8 10.0 m 10 11.0 m 12 and over 12.0 m For 12 and over piping, in case the detail calculation is conducted and the result is satisfied, longer span can be applied. These MAX. spans are only for straight lines. Adequate supports shall be provided for the lines with elbows, bends, or concentrated load such as valves. (3) Supports to be provided to inlet or outlet piping of pumps, compressors and steam turbines shall be adjustable type in case associated piping requires centering adjustment. (4) Supports receiving vertical loads from the high temperature piping may be spring type, depending on the thermal calculation. (5) Supports for piping which is subject to vibrations shall be designed to diminish resonance. (6) Small bore piping is acceptable to be supported from adjacent larger pipe to prevent excess deflection. (7) All piping shall be adequately supported and restrained so as to prevent undue vibration, deflection, stresses or loads on equipment. Piping shall be supported from below in preference to hanging from above. (8) Consideration shall be given to differential expansion between supported and supporting pipe for intermediate supporting of smaller lines from the larger. INDRA 18-JUN-2004 (9) Piping sections requiring frequent dismantling shall be provided with permanent supports for the dismantled conditions. 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 11 of 30 (10) All pipe supports, guides, etc. shall be shown on the piping arrangement drawing or isometric drawing. (11) Piping support shall be capable of carrying the weight of the piping when filled with water during hydraulic test. In case the line fluid is gas or two phase flow, it is acceptable to provide temporary supports for hydraulic test. In case the line will be tested by pneumatic test, the weight of hydraulic test shall not be considered. (12) Pipe shoes shall be provided on the horizontal lines with heat insulation. For 1-1/2 and smaller horizontal lines, shoes need not be provided, instead the bottom half of insulation shall be cut away up to a distance of 300 mm on each side of support. All bare line will be laid directly on pipeway, pipe sleeper and so on except stainless steel bare pipe. Stainless steel plate shall be installed between stainless steel bare pipe and supporting steel. 3.10 Criteria for Thermal Expansion and Uneven Settlement (1) Thermal stress calculations shall be conducted in accordance with job specification. (2) Steam condensate lines shall be provided with expansion sleeves where necessary. And pipe expansion loop can also be used where there is no limitation from process requirements. (3) Expansion loops shall principally be used to piping systems to absorb thermal expansion or contraction. (4) The criteria of piping flexibility and stress analysis shall be applied in accordance with job specification S-000-1360-004. (5) The use of expansion joints shall be avoided in process unit piping system and their use requires Owner approval, unless specified in P & ID. 3.11 Force and Moment on Mechanical Equipment All piping systems shall be ensured by means of analyzing for most severe condition, to sustain excess expansion or contraction. When piping system is analyzed, operating temperature of equipment and piping shall be used. Force and moment on mechanical equipment shall not exceed the following conditions. (1) Vendor s recommended values. (2) Individual equipment specification (If specified) (3) Applicable codes and standards, as modified by the equipment specifications. The detail criteria for above are to be in accordance with job specification S-000-1360-004. 3.12 Relief System Piping 3.12.1 General The design and installation of pressure-relieving systems shall be in accordance with API RP 520 Design and Installation of Pressure Relieving System in Refinery. 3.12.2 Open System INDRA 18-JUN-2004 In order to protect personnel from hazard and equipment from damage, the location of the atmospheric discharge of flammable and hazardous vapor shall be accurately decided in accordance with the following requirements: 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 12 of 30 (1) Atmospheric discharge from vents and relief or safety valves shall be located at least 3 meters above any platform within 7.5 meters radius. This is not applicable for small cooling water thermal relief valves. Discharge from these valves shall be located to avoid any hazards such as freezing on walkways or platforms. (2) 9 mm diameter weep hole shall be provided for drainage at a low point of the discharge piping. 3.12.3 Closed System (1) The outlet line from the relief valve shall be self-draining into the flare header. (2) The outlet piping from the relief valve shall be connected to the top part of the header at a 45 degree angle to the flow direction, but a 1-1/2 NPS or smaller piping may be connected at right angles to the flow direction. 3.13 Piping for Instruments 3.13.1 General (1) The instruments shall be so located that they will not be exposed to damage during operation, inspection or maintenance of equipment. (2) All measuring elements shall be installed at locations where exact measurement can be taken, free from disturbances due to access for operation and maintenance. The positions of instruments shall be selected so that their readings are visible from ground level, platform, ladders or steps. 3.13.2 Pressure Instrument (1) The piping for pressure instruments shall not be branched off from the bottom side of the line. 3.13.3 Flow Instrument (1) Orifices shall be installed in horizontal pipes. Where practical, orifices may be installed in a vertical piping with downward flow for liquid, gas and steam. (2) The minimum straight pipe length for orifice shall be in accordance with UOP standard drawing 6-112-1 piping arrangements for orifice plate installations. 3.13.4 Temperature Instrument (1) The location of temperature instruments shall be arranged so as to maintain sufficient space for insertion and removal of temperature instruments. (2) Thermowells shall be located at least ten (10) times the pipe inside diameter downstream from the mixing point of two (2) different temperature streams. (3) The minimum run pipe size for line installation and elbow installation of thermowells shall be in accordance with UOP standard drawing 6-108-3 thermowell and skin thermocouple installation assemblies. 3.13.5 Control Valve INDRA 18-JUN-2004 (1) Control valves shall be located so as to facilitate maintenance and manual operation from the operating floor. 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 13 of 30 (2) Control valve shall normally be installed in horizontal piping with the valve stem vertically upward. (3) Sufficient clearance shall be provided above the diaphragm and below the bottom of the body for easy maintenance. (4) Control valve shall be located at the place to make easy the operator s manipulation and close to process equipment for reliability of operation. If possible and if it does not affect the reliability of operation, then control valve shall preferably be located at the ground level. (5) All elevated control valves and manifolds shall be located on a platform. If required, the reducer shall be installed to close to the bypass line, in principle. (Conc.) 250 Min. (Conc.) Fixed Type Pipe, Support (Ecc.) (Ecc.) Min. BOP 500 (As a rule) Slide Type Pipe Support The drain shall be installed to larger pipe. (When large side of the reducer size is 8 and over, the drain can be installed to the reducer.) The reducer shall be installed at a minimum distance from the control valve. (In the case of wafer type, attention shall be given to bolt length.) The reducers shall install bottom flat or top flat considering piping configuration to avoid drain and vent pocket. In above configuration, they shall be bottom flat. 3.14 Drain and Vent (1) In piping systems, drains shall be provided at low points of all piping, and vents shall be provided at high points of piping as per P&ID requirements or the following requirements (If P&ID does not specify). (a) Drain INDRA 18-JUN-2004 (i) (ii) Alloy, stainless, class 900 rating and higher C.S piping, and all rating of H2 service - NPS 3/4 valve with blind flange. Class 600 rating and lower C.S piping except H2 service - NPS 3/4 valve with threaded plug (or valve with pipe nipple and cap for PWHT line). 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 14 of 30 (b) Vent (i) (ii) Alloy, stainless, class 900 rating and higher C.S piping and all rating of H2 service - NPS 3/4 valve with blind flange. Class 600 rating and lower C.S piping except H2 service - NPS 3/4 valve with threaded plug (or valve with pipe nipple and cap for PWHT line). (iii) Required for hydrostatic testing purposes, alloy, stainless, class 900 rating and higher C.S piping - NPS 3/4 blind flange. (iv) Required for hydrostatic testing purposes, class 600 rating and lower C.S piping - NPS 3/4 threaded plugged (to be seal welded after testing). Note: 1. Where run pipe size is NPS 1/2, the size of drain or vent valves shall be NPS 1/2. 2. Applied valve type shall conform to P&ID and/or material specification requirements. (2) Equipment drains shall be terminated up to nearest drain funnels when it is specified in the P & I Diagram. 3.15 Utility Station (Hose Station) (1) Utility station shall be provided at 30 m intervals around the vessels and ground. (2) Fluids : Water, air and steam (nitrogen, if necessary) All items shall be terminated with hose connections (3) Size : Water, air, nitrogen NPS 3/4 Steam NPS 1 (4) Hose connections shall be installed in the order of, nitrogen (if required), air, water and steam from left to right, facing to a utility station. (5) Utility stations on elevated platforms (for equipment structure, vessels, and towers) shall be provided for equipment man hole and heat exchanger, AFC maintenance. (Refer to S-000-1225-001 Para. 2.15 (4).) (6) The hose racks and hoses shall be provided at each utility station on ground. The hose racks and hoses are not provided at utility stations at elevated platforms. (7) The hose length and material shall be as follows. 3.16 Eye Washer and Shower Length 15 M for steam 15 M for water and air (common use) 15 M for Nitrogen Material Weather and abrasion resistant rubber with double braid textile or synthetic reinforced hose INDRA 18-JUN-2004 Eye washer and shower shall be installed at locations conveniently accessible in an emergency. 09004ed5800ae399 A4.doc
INDRA 18-JUN-2004 Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 15 of 30 3.17 Under-Ground Pressurized Piping (1) Under-ground piping shall be laid at depths appropriate for the various loads. Minimum earth cover (from low point) shall conform to the following: (a) Concrete pave area : 300 mm (b) Unpaved area : 400 mm (c) Road crossing : 600 mm (2) Under-ground piping under roadways shall be installed in carbon steel pipe sleeves or installed directly by confirming structural integrity. Spacers (guide plate) shall be used between carried pipe and sleeve, if pipe support is required in the length of sleeve pipe. (3) Cathodic protection shall be applied in accordance with general specification for cathodic protection, S-000-1387-001. (4) Insulated piping shall be provided with sleeve pipe. Spacers shall be used between carried pipe and sleeve, if pipe support is required in the length of sleeve pipe. (5) All steel pressurized piping located underground shall be coated (fusion bonded epoxy or polypropylene) for external corrosion protection. Refer to S-000-13A0-102. (6) In event of parallel runs, the minimum clearance between an U/G pipe and other U/G objects shall be 300 mm or pipe diameter (larger pipe in case of another U/G pipe) whichever is smaller. If the clearance is smaller than 300 mm, its constructability shall be confirmed. 3.18 Trench Piping (1) The use of trenches shall be avoided in hazardous area as far as possible. (2) Where it is required to install process piping underground inside the plot limits, e.g. in case of pump suction lines to eliminate vapor pockets, the line shall be laid in concrete trenches. (3) The minimum clearance between the top of sleepers and the bottom of concrete trench shall be 75 mm. (4) The clearance between the top of piping and bottom face of the trench cover shall be kept min. 50 mm. 3.19 Sample Connection (1) Liquid sample connections shall not be installed at the bottom of horizontal piping, nor located at the dead ends of piping. (2) Gas sample connections shall be located at the top of a horizontal run piping or at the side of vertical piping. (3) Sample piping shall be as short as possible. (4) The sample connections shall be located for easy access from grade (grade preferred) or fixed platform. (5) Type of sampling connections and sample coolers, where required, shall be in accordance with the P&I Diagram. 3.20 Utility Piping (1) All branch piping from utility headers (steam, steam condensate, water, air, nitrogen, fuel gas, fuel oil, etc.) shall be taken from the top of the header to prevent plugging, however, water branch piping of 3 NPS and larger may be taken from the bottom of the header. 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 16 of 30 (2) Isolation valve onto branch line whose size is 1-1/2 NPS and smaller will be provided. However, in the case users are only utility stations, no need to provide isolation valve on each branch line, if main header has isolation valve. Refer to S-000-1225-001 Para. 2.2.2. (3) Main steam line and steam subheader line shall be provided with drip legs (boots) near the downstream end of drain pockets, header ends and at the locations specified in P & ID. 3.21 Minimum Clearance 3.21.1 Minimum Clearance between Pipes/Valves (1) For non-insulated piping, a minimum clearance of 25 mm shall be provided between the outside diameter of pipe flanges and adjacent pipes or a minimum clearance of 75 mm shall be provided between the outside surface of pipes. For insulated piping, the insulation thickness shall be taken into consideration. (2) The minimum clearance between pipes which are subject to expansion and contraction shall be determined on a case-by-case basis. (3) The minimum clearance between valve handwheels shall be 100 mm. 3.21.2 For overhead piping, the following minimum vertical clearance between finished grade (or top of floor plate) and the bottom of the piping, or support beam (whichever controls) shall be maintained: (1) Over Roadway 6.0 m (2) Pipe Rack (with truck access) 4.5 m (Unit main pipe rack that runs through (4.0 m clear in width for 10 m or the center of process units) 8 m wide piperack) (3.0 m clear in width for 6 m wide piperack) (3) Pipe Rack (without truck access) 3.0 m (Sub pipe rack (a branch pipe rack) that runs from unit main pipe rack) (4) Above Walkways and Elevated Platforms 2.1 m 3.21.3 Equipment, structures, platforms, piping and its supports shall be arranged to provide the following minimum horizontal clearances: (1) Operation and maintenance side of control panels 0.75 m (2) Operating Aisles 0.75 m (3) At shell cover end of exchangers at grade, for access way 0.75 m (4) Maintenance platform at channel end of elevated exchangers 1.0 m (5) Maintenance platform at shell cover ends of elevated exchanger 0.75 m (6) In front of manholes 1.0 m (7) Pinch points on passageways at grade and on elevated platforms 0.75 m (0.75 m remains in areas cutside of pinch points) INDRA 18-JUN-2004 (8) Between pump extremities, including piping of adjacent pumps 0.75 m (9) Between extremities, including insulation, of paired exchangers or vessels 0.75 m 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 17 of 30 (10) Aisles between piping and other obstructions where frequent 0.75 m access is not required 3.21.4 Minimum clearance between the finished grade and bottom of Piping or insulation shall be: (1) Under low level piping in paved or unpaved areas 0.3 m (2) Under drain piping 0.15 m However a minimum vertical clearance of 300 mm from grade is not necessarily kept for sleeper piping without drain valve. When low level piping is in the access, a steel step shall be provided. 3.22 Accessibility For minimum accessibility requirements, please refer to Appendix 2. 3.23 Pipe through Floors All piping that is to pass through the platforms or floors shall be passed through pipeholes. Minimum size of the holes shall conform to the following table. However, efforts shall be exerted in the piping design to minimize the use of such arrangement. Nominal Pipe Size Un Insulated (mm) 1/2 130 3/4 130 1 130 1-1/2 150 2 160 3 190 4 210 6 270 8 320 10 370 12 420 14 460 16 510 18 560 20 610 24 710 Hole Diameter Insulated When the piping is to be insulated, fractions of the insulation thickness shall be rounded off upwards in 10 mm and added to the pipehole diameters. 3.24 Pipe through Dike (1) Sleeve pipe shall be provided for the piping through dike. (2) No cathodic protection shall be applied to the carrier pipe and sleeve through dike. (3) Spacers shall be used between carrier pipe and sleeve when pipe support is required in the length of sleeve pipe. INDRA 18-JUN-2004 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 18 of 30 3.25 Foundation Height The minimum height of foundations supporting steel bases, including structure columns, pipe supports, process equipment, vessels and towers shall conform to the following: (1) Pumps : 200 mm (2) Piping supports : 50 mm (3) Tanks : 300 mm (4) Other : 150 mm 3.26 Escape Ladders Criteria for providing escape ladders shall conform as follows: (1) Piperack : when the dimension of the floor/walkway in any straight line excess 30 m (2) Structures : when the dimension of the floor/walkway in any straight line excess 30 m 4 PIPING AROUND EQUIPMENT 4.1 Tower and Drum Piping (1) Manholes of the towers and vertical type drums shall be provided on the maintenance side, while piping shall be arranged on the other side. Instruments shall be located in the appropriate location for operation. (2) Piping connected to towers shall, in principle, be arranged in consideration of facilitating easy supporting. (3) Piping and their supports shall be arranged in consideration of thermal expansion of the tower and drum. (4) Minimum clearance between the first stage platform and ground level shall be a minimum of 3 m. (5) Platforms shall be arranged so that the vertical distance between upper and lower platforms does not exceed 8 m. (6) In general, circular platforms with adequate space shall be mounted on the top of the towers and vertical type drums. Width of the platforms shall be 1,000 mm - 1,500 mm where access is provided for manholes, valve, instruments, etc., and shall be 1,000 mm where it is only for ladder landing. Vertical distance between the Platform and center-line of manholes shall be generally 700 mm - 1,200 mm and normally 800 mm. INDRA 18-JUN-2004 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 19 of 30 4.2 Piping for Rotating Machines (1) General (a) (b) (c) Sufficient flexibility and adequate support shall be provided for piping which serves rotating machines, to minimize stresses applied on nozzles of the machine which might influence the proper installation alignment or internal clearances of the machine, or jeopardize the trouble-free operation of the machine. Connecting piping for rotating machines shall be arranged so that internal elements and casing sections of the machine can be removed for maintenance without interference with the connecting piping. The break flanges shall be provided when the maintenance is impossible without them. When the piping shall be supported from grade, adjustable pipe supports shall be used, and shall not be supported from maintenance areas. (2) Pumps (a) (b) (c) (d) (e) Pump suction piping shall be designed to avoid the formation of vapor pockets. Where a reducer is required in horizontal pump suction piping, an eccentric reducer shall be installed with the flat on top. The suction lines of pumps shall be arranged as short and direct as possible. The length of straight run pipe between elbow and pump suction nozzle in the horizontal suction lines of a double suction pump shall be at least 5 times the pipe diameter. Where a reducer is installed between a pump nozzle and a horizontal elbow in a pump suction line, the reducer shall be considered as a part of straight run pipe. Piping arrangement shall permit insertion and removal of permanent and temporary strainer internals without disturbing machine installation alignment. The design and location of permanent strainers shall be such as to permit cleaning without removing the strainer body. Type of strainers used in pump suction piping shall be as follows. NPS 2 and smaller size - Y type (Flanged, Socket weld or thread connection in accordance with applicable piping class) NPS 3 and larger size - T type (Butt weld connection. Flanged connection only for galvanized piping class) Generally the Bathtub style is used for T type strainer. The each strainer type will be identified in specification or requisition. INDRA 18-JUN-2004 (f) Bathtub style Strainer body material shall be applied corresponding to its piping material. 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 20 of 30 (g) Maximum efforts shall be made to locate the piping at the pump side for ease of maintenance work. Strainer Suction Discharge If the valve is large and handling location is high. (h) All supports shall be of the adjustable type in case the pumps require centering adjustment. (3) Compressor (a) (b) (c) Special attention shall be given to reciprocating compressor piping, taking into consideration the effects of vibration and pressure pulsation, to prevent fatigue failure. The piping around compressor shall be arranged to prevent excessive force and moment effecting on to the nozzle. Centrifugal compressor suction piping shall be designed to ensure that the configuration of the piping and the length of straight pipe at inlet nozzle is in accordance with vendor recommendation and will not adversely affect the compressor performance. 4.3 Heat Exchanger Piping (1) Shell and tube heat exchanger (a) (b) (c) Piping shall be arranged so as to allow removal of channel covers and tube bundle and give easy access for bolting. Break flanges shall be provided when the maintenance is impossible without them. If practicable, symmetrical piping is desirable for the inlet piping of the heat exchangers having plural inlet nozzles. The configuration of piping connected to the respective heat exchangers of the same item arranged in parallel shall be symmetrical. INDRA 18-JUN-2004 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 21 of 30 (d) Installing elevation are as below. Bottom of Pipe Min. 150mm Operating Level Min. 500mm (e) Locations of valves and orientations of thermometers around heat exchangers. Thermometer Thermometer Standard Height Approx. 1,400 mm (f) Piping supports High Point of Paving Supported by Stanchion INDRA 18-JUN-2004 Adequate supports shall be provided to lines around heat exchangers. 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 22 of 30 (2) Air cooled heat exchanger (a) (b) (c) All piping connecting to an air cooled heat exchanger, especially the inlet line, shall have sufficient flexibility and adequate support to ensure that, under no circumstance, the nozzles of the air cooled heat exchanger shall be subject to excessive stress and moment beyond allowable range. Piping around air cooled heat exchangers with multi-bundles, shall be arranged to ensure even flow distribution. Access way for inlet/outlet nozzle and fan motor of air cooled heat exchanger shall be provided. 4.4 Furnace Piping (1) Arrangement of piping for burners shall be performed considering easy insertion and removal of firing torches, burners and burner guns. Furthermore, the piping shall not obstruct observation windows, access doors, header box covers and the tube removal area. (2) The valves in the fuel supply piping to the burner and valves for steaming out, shall be located close to the furnace observation windows and shall be convenient for burner ignition and heater control. (3) Piping for multi-pass furnaces shall be arranged symmetrically, if no valves to adjust flow rate are provided in the piping. (4) Snuffing steam valves shall be located 15m from furnace in consideration of facilitating quick access from the control room as well as ensuring a safe distance from the furnace. 4.5 Tank Farm Piping (1) Piping in tank dikes shall take the shortest possible route to the main pipeway. (2) Piping shall be arranged to enable the absorption of nozzle displacement caused by tank settlement, or piping displacement caused by nozzle rotation due to tank shell deformation. (3) Piping passing through dikes shall be adequately protected against external corrosion, and shall be capable of absorbing any possible movement of piping due to thermal expansion and contraction. (4) Proper sealing shall be provided to the piping passing through dikes. (Refer to Para. 3.24.) (5) Piping inside tank dikes shall not obstruct to heavy equipment s maneuver. 4.6 Pipetrack (Pipe Sleeper) and Piperack Piping (1) In process units all piping shall be run overhead and grouped in banks wherever feasible, with the exception of large seawater lines, fire water, potable water line to safety showers and drinking fountains and drain lines. (2) Large sized or heavy weight piping on racks (road-bridge) shall primarily be laid on the sides. (3) Reducers to be used on racks or sleepers shall be of the eccentric type to maintain constant elevation of the pipe bottom. INDRA 18-JUN-2004 (4) The minimum pipe size and supporting requirement shall be as per Para. 3.5 (4). 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 23 of 30 4.7 Jacketed Piping 4.7.1 Jacketing Methods In cases where piping is to be jacketed, the entire piping system (including straight runs, fittings and valves) shall be jacketed, unless otherwise specified on P&ID. 4.7.2 Heating Medium (1) The heating medium to be used in jackets shall be steam normally. (2) Steam shall be supplied from a point higher than the jacket and traps shall be provided at low points. (3) Connection piping to jackets shall have the same size as that of the steam supply piping. 4.7.3 Precautions to be taken with Respect to Jacketed Piping (1) Since thermal stresses will be caused by the differences in material and temperature between the inner and outer pipes in usual cases, consideration shall be given to this point. (2) Expansion loops shall be used as a measure against excess stresses in the inner and outer pipes. (3) No pockets/dead ends shall be provided at the end of the process piping or at branches. (4) Air pockets and drain pockets shall be avoided as far as practicable. In cases where they cannot be avoided, vents or traps shall be provided. (5) For detail design and fabrication, please refer to job standard drawing D-000-1360-057, 058 and 059. 4.8 Steam Trace Piping Steam trace shall be designed in accordance with UOP standard specification 1-14-1 Steam Heat Tracing. 5 PIPING DRAWING 5.1 Plan and Each Isometric Drawing Orthographic drawing which shows piping general arrangement will be called Plan Drawing. Isometric drawing which shows one line(all piping 1/2 larger) will be called Each Isometric Drawing. 5.2 Preparation of Plan and Each Isometric Drawing 5.3 Scale Piping plan and each isometric drawing shall be prepared by extracting them from the PDS-3D model utilizing Intergraph s PDS-3D soft ware. Scale shall be as follows: (1) Process and utility unit INDRA 18-JUN-2004 (a) Plan drawing 1/30, 1/60 (b) Each isometric drawing Non scale 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 24 of 30 (2) Off-site and common piperack piping (a) Plan drawing 1/30, 1/60, 1/100, 1/200 (b) Each isometric drawing Non scale 6 PRESSURE TESTING 6.1 Pressure Testing Method Hydrostatic testing shall be applied to lines in accordance with ASME B31.3 Para.345.4, except for the following items: (1) Utility and other lines defined clearly from its service name (a) Instrument Air Pneumatic (b) Deleted Deleted (c) Flare Pneumatic (d) Deleted Deleted (2) Deleted (3) Process lines insulated or lined on their inside Pneumatic (4) Process lines which hydrostatic testing is not recommended due to technical reasons, such as those for cold service use, etc. Pneumatic (5) Large diameter tower overhead lines (18 and larger) shall be pre-assembled at grade level and hydrotested prior to erection and last welds shall be handled as so called golden welds which RT for butt weld and PT for socket weld will be applied. (6) Sea cooling water lines of FRP shall be hydrotested at 1.5 times operating pressure. Note: For Pneumatic, ASME B31.3 Para.345.5 shall be applied. 6.2 Application of Pressure Testing After completion of the piping installation and NDE work, the field fabricated piping shall be subjected to pressure test, except for the following cases: (1) The weld joint which can not be subjected to pressure test shall be examined by PT and/or RT for BW. (2) RT for BW and PT for SW will be applied to welded piping connection with equipment. INDRA 18-JUN-2004 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 25 of 30 (3) The final connection (joint) with piping for the special case such as piping around the dress-up towers will be tested by RT for butt weld and PT for socket (fillet) weld. Dress-up Pressure Testing Separately RT or PT (Final Connection) INDRA 18-JUN-2004 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 26 of 30 APPENDEX 1 INDRA 18-JUN-2004 09004ed5800ae399 A4.doc
[Valve] Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 27 of 30 1. Valves requiring frequent manipulation 2. Valves not requiring frequent manipulation INDRA 18-JUN-2004 APPENDIX 2 (1/2) MINIMUM ACCESS REQUIREMENTS Objects (1.8 m over above ground Necessity of or above platforms) access With stairway Minimum Access Requirements Permanent platform With ladder NPS 3 YES (3) NPS 2 YES (4) Equipment drains/vents YES Line drains/vents For spared equipment YES (3)(4) (1)(7) Others YES (3) (4) (1) 3. Valves not requiring manipulation including utility, flare and other header root valves for branches 4. Valves requiring quick operation during plant operation Permanent ladder Movable Ladder or Stand Remarks NO Construction and non-routine maintenance purpose only eg. hot tap valves YES (2) Valves so specified on P & ID 5. Remote operation valves YES Emergency shut-down valve, etc. 6. Battery limit valve station YES (3) 7. Block valves for instrument connection YES (1)(7)(8) 8. Isolation valves of steam traps for trap YES maintenance [Other Piping Element] 1. Special piping components requiring YES (1) maintenance and replacement 2. Special piping components not requiring NO maintenance 3. Blanks Operation YES Maintenance YES (1)(7) Temporary access with scaffolding also acceptable 4. Spring supports NO [Instruments] 1. Pressure detecting element NO Connection Point Instruments local gauge YES 2. Temperature detecting element NO Thermowell Instruments local gauge YES 3. Level detecting element YES Float in displacer, etc. Instruments local gauge YES 4. Flow detecting element YES (1)(8) Instruments local gauge YES (6) 5. Transmitters with local indication YES For local indication which without local indication YES (1) requires daily operation 6. Safety valves YES (1) 7. Control valves YES 09004ed5800ae399 A4.doc
[Equipment] Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 28 of 30 Objects (1.8 m over above ground or above platforms) APPENDIX 2 (2/2) MINIMUM ACCESS REQUIREMENTS (continued) Necessity of access With stairway Minimum Access Requirements Permanent platform With ladder Permanent ladder Movable Ladder or Stand Remarks To top platform, if 1. Towers/Vessels YES necessary 2. Compressors/Turbines YES For elevated objects 3. Air Coolers YES To header box and motors 4. Cooling towers YES To motors on top To burners and peeping 5. Heaters YES holes 6. Elevated stacks YES To igniter, if necessary 7. Manholes on equipment YES (9) (9) 8. Handholes on equipment YES (9) (9) 9. Equipment nozzles YES (9) (9) [Operation Devices] 1. Local sampling points YES (5) 2. Elevated hydrants/monitors YES Notes: (1) Movable ladders and stands (platforms) can be applied for the objects whose operation height is less than or equal to 4.5 m from ground or equipment structure platforms. (2) The objects shall generally be provided on ground. If the objects are provided on permanent platforms located more than 1.5 m above ground, stair access shall be provided. When height of the platform is less than or equal to 1.5 m, ladder access may be substituted for stair access. (3) Extended stem valves and chain operated valves, or extension handle of valves can be applied, if the valves of NPS 3 and larger can not be located within the reach from the platform. (4) For NPS 2 and smaller, permanent ladder access is acceptable. (5) For local sampling points which will be manipulated frequently, stair access shall be provided, if the platform is located more than 1.5 m above ground or more than 1.5 m above stair access platform. (6) For integral type flanged flow instruments such as variable area flow meter, positive displacement flow meter, magnetic flow meter, turbine meter, etc., permanent platform with ladder access shall be provided as a minimum access requirement. (7) Access is not required for piping on pipe rack, sub pipe rack or pipe track. (8) For orifice flanges and tap valves the instruction in Appendix 3 shall be followed. (9) Permanent platform is not required for shell and tube heat exchangers. Minimum clearance between the first stage platform and ground level shall be 3.0m. (10) Stair way is required for the structures locating multiple mechanical equipment. INDRA 18-JUN-2004 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 29 of 30 APPENDIX 3 (1/2) ACCESS REQUIREMENT FOR ORIFICE FLANGES 1. PROVISION OF ACCESS PLATFORM Orifice flanges shall be accessible either from existing platform/or from grade. If this is not applicable, additional platform for orifice flanges shall be provided except for the case stated in Para. 3. 2. PROVISION OF ADDITIONAL PLATFORM ON THE PIPE RACK 2.1 General Application Minimum distances to be maintained for locating the orifice flanges, shall be as shown in the following figure. ORIFICE FL G MIN. MIN. MIN. ORIFICE FL G PIPE RACK MIN. PLAN If orifice flanges are located higher than 4.5 m elevation from grade, additional platform shall be provided with the following requirement. Fluid of Service Provision of additional platform Liquid and steam : Underneath of orifice flanges Gas and vapor : Above the orifice flanges INDRA 18-JUN-2004 09004ed5800ae399 A4.doc
Sohar Refinery Company SOHAR Refinery Project JOB CODE: 0-3100-25 DOC NO: S-000-1360-001 rev. R General Specification of Piping SHEET : 30 of 30 APPENDIX 3 (2/2) ACCESS REQUIREMENT FOR ORIFICE FLANGES (continued) 2.2 Around Unit Battery Limit Regardless of installation level (elevation) of orifice flanges, additional platform is required underneath of orifice flanges. ORIFICE FL G MIN. 200 MIN. 200 ORIFICE FL G ORIFICE FL G PIPE RACK 1000 500 (FOR INSTALLATION OF INSTRUMENT ASSEMBLY) ACCESS PLATFORM PLAN VIEW 3. WITHOUT ACCESS PLATFORM The following location of orifice flanges are acceptable without platform access regardless of the above. 3.1 Pipe Rack Piping (applying to liquid and steam service) If orifice flanges are located 4.5 m and lower elevation from grade, additional platform is not required (access by temporary ladder). ORIFICE FL G MIN. PIPE RACK ORIFICE FL G 4.5 m PLAN 3.2 Other than Piperack Piping (applying to all fluid of services) GRADE DETAIL If orifice flanges are located 4.5 m and lower elevation from grade, additional platform is not required (access by temporary ladder). ORIFICE FL G 4.5 m INDRA 18-JUN-2004 GRADE DETAIL 09004ed5800ae399 A4.doc