SILENCERS. APPLICATIONS Heavy-duty Silencers for marine applications.

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SILENCERS APPLICATIONS Heavy-duty Silencers for marine applications. LD LDC Circular High Efficiency Silencer for flange connection. Available in sizes from dia Ø315 - Ø.

1 SILENCERS APPLICATIONS Heavy-duty Silencers for marine applications. LD LDC Circular High Efficiency Silencer for flange connection. Available in sizes from dia Ø315 - Ø. Length 1D or 2D (Length = 1 x diameter). Circular High Efficiency Silencer with Core, for flange connection. Where extra damping is necessary. Available in sizes from dia Ø630 - Ø. Length 1D or 2D (Length = 1 x diameter). To be mounted directly to axial fans or in-duct. DESIGN Also tailor made solutions to meet customer s specification. EXECUTION The Silencer is normally manufactured in Grade A ship steel, hot dip galvanized. 100 mm insulation material, type Rockwool, with perforated stainless steel plate, AISI 316L inside. N-6230 SYKKYLVEN, NORWAY TEL FAX

2 SILENCERS LD LDC (with core) N-6230 SYKKYLVEN, NORWAY TEL FAX

3 SOUND ATTENUATOR LD & LDC A LDC T2 A O D O B T1 DC=O C Z holes, K threads DETAIL A LD A=1D A=2D B C D T1 T2 Z x K xM xM xM xM xM xM xM xM xM xM xM xM xM xM16 LD R.Berge 24/02-03 N-6230 SYKKYLVEN, NORWAY TEL FAX LD & LDC

4 TECHNICAL DATA The pressure for LD (without core) equals the pressure drop for ductwork with equal length. The pressure drop for LDC (with core) se below Air flow vs Pressure drop, Model LDC 1D 200 Pa size Air flow vs Pressure drop, Model LDC 2D size Pa Differential Pressure - Kg/cm2 50 Differential Pressure - Kg/cm , , m 3 /s Sound attenuation For LDC the attenuation will depend on the blade angle of the axial fan. For LD the blade angle is ignorable. Silencers in duct Static attenuation Size Model Attenuation db k 2k 4k 8k LD 1D LD 2D LDC 1D LDC 2D LD 1D LD 2D LDC 1D LDC 2D LD 1D LD 2D LDC 1D LDC 2D LD 1D LD 2D LDC 1D LDC 2D LD 1D LD 2D LDC 1D LDC 2D LD 1D LD 2D LDC 1D LDC 2D LD 1D LD 2D LDC 1D LDC 2D LD 1D LD 2D LDC 1D LDC 2D , , m 3 /s Silencer mounted directly on axialfan in duct Dynamical attenuation Blade angle small refers to 20-25, medium to and big to Blade Attenuation db Size Model angle k 2k 4k 8k LD 1D All Small LDC 1D LD 2D Medium Big Small Medium Big Small LDC 2D Medium Big LD 1D All Small LDC 1D Medium Big Small LD 2D Medium Big Small LDC 2D Medium Big LD 1D All Small LDC 1D Medium Big Small LD 2D Medium Star Small LDC 2D Medium Big LD 1D All Small LDC 1D Medium Big Small LD 2D Medium Big Small LDC 2D Medium Big N-6230 SYKKYLVEN - NORWAY Tlf: Fax

5 SS Vent 206 O Si lencer NOVIBRA DAMPERS Fan DC= O O OFF Ø Dato Konstr./Tegnet Godkjent Målestokk F. Østro Gen. Arr. Drawing Henvisning: E.Nyborg Beregning: 1:20 NYBORG AS Erstatning for: N-6230 SYKKYLVEN Erstattet av: MPV D1K / Silencer / SS Vent

6 10 pcs Novibra Vibr. dampe rs mounted be tween 2 pcs contra -flanges. 10 pcs M12 bolts to be th readed to vibr. dampers. Sound a tten. to be mounted to deck penetration by M16 bolts, Threaded Flange Brackets, Pl.12 Angle Bar 150x75, Welded todeck- Housing M16 threads A O 1120 A Shut Of f Dampe r1250x1250 Spl it Out type Axial Fan Ø 1120 Collar with flexible Connection and Novibra Dampers Not in Our Scope o f supply! Deck Penet ration,ø 1120 Sound At tenuato r, Ø DC= O pcs. M16 on Sound Att O 1120 B Detail of NovibraType C75/36 36 O 75 M12x12 DETAIL B 20 pcs. Ø 19in lower Deck -Flange 10 pcs. Ø 16 in Upper Deck-Flange WW Lines Ro/Ro Carrier MKII M/V Tampa Fan. No.: 306, 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,20 Dato Konstr./Tegnet Godkjent Målestokk 28/05-02 R.Berge E.Nyborg 1: 20 NYBORG AS N-6230 SYKKYLVEN Erstatning for: Erstattet av: SECTION A-A Gen. Arr. Drawing MPV 1120 A/D1M/ SSVent / LD Henvisning: Beregning: As Built14/11-02 R.B.

RESILIENT MOUNTINGS PRINCIPLE SKETCH MPV A1K N-6230 SYKKYLVEN - NORWAY Tel: +47 70 25

7 RESILIENT MOUNTINGS PRINCIPLE SKETCH MPV A1K N-6230 SYKKYLVEN - NORWAY Tel: Fax office@nyborgfan.com - WEB: MPV A1K

NCR-80 NCR-80. IX C SD A H X A N A X X. Display. Connection. Housing. Version. Mounting. 1: Plastic 2: Thread 3: Metal

NCR-80 NCR-80. IX C SD A H X A N A X X. Display. Connection. Housing. Version. Mounting. 1: Plastic 2: Thread 3: Metal NCR-80 Display Mark if none Sample Sample NCR-80. I C SD A H A N A Display : - No Bindisc - No Window (1, 2, 3) A: A - Bindisc Top Mounted with Window (1, 2, 3) F: F - No Bindisc - With Window Top (2,