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Sempell Model VSE / VSR Safety Valves
Sempell Series VSE and VSR Safety Valve
Direct spring-operated safety relief valve with DIN flanges, ASME flanges or welding end connections
Sempell Model VSE / VSR Safety Valves


DN 25 – DN 200
NPS 1” – NPS 8”
Pressure Rating:
PN 10 – PN 500
class 150 – class 2500
-196 °C to +600 °C
–300 °F to +1100 °F
Set Pressure:
0.5 –500 bar
VSE1 open bonnet
VSE2 conventional
VSE4 weight loaded for small pressures
VSE5 balanced bellows
VSR?with adjustable blowdown
Body Material:
1.0619/SA216 WCB
1.7357/SA217 WC6
1.4308/SA351 CF8
1.4581/SA351 CF8MC
1.6220/SA352 LCC
Other materials available on request
Cooling spaces, balance piston, lifting lever, test gag, position indicator, soft seat


  • Fully flexible connections: DIN and ASME flanges, threaded, welding ends
  • Pop action
  • Mechanical lift stop ensures functional stability
  • High allowable back pressure
  • Available with actuator for use as pneumatic operated safety valve
  • One–piece spindle design


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