(SV-B9DL) BRONZE SAFETY RELIEF VALVE (1x2) 




MODEL: SV-B9DA / SVP-B9DA (NO LEVER) 
MODEL: SV-B9DL / SVP-B9DL (WITH LEVER) 
When placing order, please indicate Working Pressure
(Spring adjusting range: ± 1 kg/cm2) The features of low lift bronze safety valves for which the valve seat & disc are processed by lapping. The Disc can be replaced with PTFE for good effect of anti-leakage. (Model: SVP-B9DA, SVP-B9DL) Working Fluid : Metal to Metal: Non-Corrosive Gas, Air, Steam. PTFE: l Non-corrosive Gas, Non-corrosive Liquid. l Air, Steam, Water, Oil. 
Working Temp: -45℃～185℃ 
Working Pressure: SV-B9DA / SV-B9DL : 0.3 ~ 10 Kgf/cm2 , 11 ~ 20 Kgf/cm2 SVP-B9DA / SVP-B9DL : 2 ~ 10 Kgf/cm2 , 11 ~ 20 Kgf/cm2 (PTFE) 

MATERIAL:  
No./ Parts W/O Lever SV-B9DA SV-B9DL SVP-B9DA SVP-B9DL 
With Lever 
 Type : METAL TO METAL PTFE 
1 Valve Body CAST BRONZE CAST BRONZE 
2 Valve Seat FORGE BRASS FORGE BRASS 
3 Valve Disc FORGE BRASS FORGE BRASS 
3-1 Soft Seal - PTFE 
4 Spring SWOSC-V SWOSC-V 
5 Stem BRASS BRASS 
6 Cap FORGE BRASS FORGE BRASS 
7 Packing (B9DA) ASBESTOS  ASBESTOS 
8 Spring Seat BsBM BsBM 
9 Nut BsBM BsBM 
10 Adjusting Screw BsBM BsBM 
11 Handle (B9DL) STEEL STEEL 
 

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Dimension: Type: Sealing (without lever) mm Type: Lever mm 
 Inlet Outlet Inlet Orifice Valve Seat Orifice   Lift l Weight kgs   Size  Weight kgs   
A B C di ds E F  A1  
145 1/4” 1/2” 8 13 29 47 0.52 0.50  1/4” x 1/2” 167 0.70  
145 3/8” 1/2” 10 13 29 47 0.52 0.50  3/8” x 1/2” 167 0.70  
167 1/2” 3/4” 13 19 36 55 0.76 0.80  1/2” x 3/4”  190 0.90  
202 3/4” 1” 19 25 40 61 1.00 1.30  3/4” x 1”  223 1.40  
233 1” 1.1/4” 25 32 50 75 1.28 2.20  1” x 1.1/4”  248 2.20  
256 1.1/4” 1.1/2” 32 38 54 86 1.52 2.90  1.1/4” x 1.1/2”  272 2.90  
283 1.1/2” 2” 38 50 66 96 2.00 4.70  1.1/2” x 2”  299 5.00 
 
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