(SV-B27) BRONZE SAFETY RELIEF VALVE (OLD MODEL: S3W-A)

 MODEL:  SV-B27 / SVP-B27 WITHOUT LEVER

MODEL:  SV-B29 / SVP-B29 WITH LEVER

 SV-B27/SV-B29 optional Pressure: 10.5~20 Kgf/cm2

When placing order, please indicateWorking Pressure

 The Disc can be replaced withPTFEfor good effect of anti-leakage. (Model: SVP-B27, SVP-B29)

 Working Fluid :SV-B27/SV-B29/SVP-B29

Non-Corrosive Gas, Air, Steam.

SVP-B27 (without lever)

Non-Corrosive Gas, Liquid, Air, Steam, Water, Oil.

Working Temp:-45℃～185℃

Working Pressure:SV-B27 / SV-B29 :

0.3 ~ 10 Kgf/cm2 11 ~ 20 Kgf/cm2

SVP-B27 / SVP-B29 (PTFE)

3 ~ 10 Kgf/cm2

Thread End:BSPT (BS21), NPT (ANSI B2.1)

MATERIAL:

No./ PartsW/O LeverSV-B27 (S3W-A)SVP-B27

With LeverSV-B29 (S3W-LR)SVP-B29

 Type :METAL TO METALPTFE

1Valve SeatFORGE BRASSFORGE BRASS

2Valve DiscFORGE BRASSFORGE BRASS

3Valve spindle

(Stem)FORGE BRASSFORGE BRASS

3-1Valve Seal-PTFE

4Valve BodyBRONZEBRONZE

5Spring ShoeBsBMBsBM

6Adjusting ScrewBsBMBsBM

7Stop NutBsBMBsBM

8CapFORGE BRASSFORGE BRASS

9Lever (Type: B29)STEELSTEEL

10SpringSWOSC-VSWOSC-V

11Screw WasherBsBMBsBM

12Hexagon NutBsBMBsBM

13Stop BoltBsBMBsBM

14PinBsBFBsBF

This type of safety valve is characterized by regulating of pressure in valve rising ａnd blowing-out when actuated ａnd is the smallest ａnd lightest valve, ａnd also can be used in non-corrosive gases (air, oxygen, nitrogen, etc.) steam ａnd liquids, such as water ａnd oil. The sizes shown in the chart are subject to change without notice.

 Nominal

DiameterValve Seat

Diameter DLift

 lEffective Area mm2L1

EL2

FFitting ScrewClosed TypeLever Type

2.22DlπDl0.785D2Inlet d1Outlet d2A mmWeightA1 mmWeight

12120.5213.3218.84113.02950PT 1/2PF 1/21380.521610.59

19190.7632.0545.36283.33658PT 3/4PF 3/41500.661720.74

25251.0055.5078.53490.64070PT 1PF 11801.092021.19

32321.2890.93128.67803.85082PT 1.1/4PF 1.1/42061.902221.94

38381.52128.22181.451133.55493PT 1.1/2PF 1.1/22312.352462.39

50502.00222.00314.151962.567102PT 2PF 22653.852824.11