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Sempell Model MiniS Safety Relief Valve
Spring-operated safety valve with flanges and threats for low pressure• Type-tested for use with steam, gases and liquids (TÜV-SV-11-972)• Type-tested acc.
Sempell Model MiniS Safety Relief Valve


Size Inlet
DN 15 - 25 NPS ½" - NPS 1"
Pressure rating
PN 10 - 40 Class 150 - 300
Temperature range
-200°C - + 200°C -300°F - +300°F
Set pressure
0.5 bar - 52 bar
Orifice Diameter
14 mm
Flanges and threads according to DIN, BS and ASME
Body material
1.0619 / A216 WCB 1.4408 / A351 CF8M
soft seat, lifting lever, test gag, reinforced bellows


  • Pop action
  • Mechanical lift ensures functional stability
  • High allowable back pressure
  • One design for steam, gases and liquids
  • Self-aligning spring assembly
  • Low friction, spring compression
  • Low maintenance
  • Soft seat options for superior seat tightness


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