MODEL: SV-B27 / SVP-B27 WITHOUT LEVERMODEL: SV-B29 / SVP-B29 WITH LEVER SV-B27/SV-B29 optional Pressure: 10.5~20 Kgf/cm2When 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-B29Non-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/cm2SVP-B27 / SVP-B29 (PTFE)3 ~ 10 Kgf/cm2Thread End:BSPT (BS21), NPT (ANSI B2.1)MATERIAL:No./ PartsW/O LeverSV-B27 (S3W-A)SVP-B27With LeverSV-B29 (S3W-LR)SVP-B29 Type :METAL TO METALPTFE1Valve SeatFORGE BRASSFORGE BRASS2Valve DiscFORGE BRASSFORGE BRASS3Valve spindle(Stem)FORGE BRASSFORGE BRASS3-1Valve Seal-PTFE4Valve BodyBRONZEBRONZE5Spring ShoeBsBMBsBM6Adjusting ScrewBsBMBsBM7Stop NutBsBMBsBM8CapFORGE BRASSFORGE BRASS9Lever (Type: B29)STEELSTEEL10SpringSWOSC-VSWOSC-V11Screw WasherBsBMBsBM12Hexagon NutBsBMBsBM13Stop BoltBsBMBsBM14PinBsBFBsBF 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. NominalDiameterValve SeatDiameter DLift lEffective Area mm2L1EL2FFitting ScrewClosed TypeLever Type2.22DlπDl0.785D2Inlet d1Outlet d2A mmWeightA1 mmWeight12120.5213.3218.84113.02950PT 1/2PF 1/21380.521610.5919190.7632.0545.36283.33658PT 3/4PF 3/41500.661720.7425251.0055.5078.53490.64070PT 1PF 11801.092021.1932321.2890.93128.67803.85082PT 1.1/4PF 1.1/42061.902221.9438381.52128.22181.451133.55493PT 1.1/2PF 1.1/22312.352462.3950502.00222.00314.151962.567102PT 2PF 22653.852824.11