Sempell SOH High Pressure Steam Safety Valve

Sempell SOH High Pressure Steam Safety Valve

Sempell™ SOH is a high pressure safety valve for boiler protection. With flanges or welding ends. Open bonnet and supplementary loading for tightness up to set pressure. DN40-250, PN10-320, set pressure 10-320 bar.

Any questions?

Henna Ketoja
Inside Sales Engineer
Mob. 400 612 124

Tommi Penttilä
Sales Manager Conventional Power
Phone. 0207 416 208

Size Inlet DN 40 – DN 250 NPS 1 ½-NPS 10 Nm3/h
Temperature Range Up to +700 °C / +1300 °F
Diameter Inlet DN 80 – 300 / 3" – 12"
Set Pressure 10 – 320 bar
Design Open bonnet, balanced piston, pneumatically assisted
Orifice Diameter 17,5 – 160 mm
Body Material 1.0460/SA105
1.0619/SA216 WCB
1.7335/SA182 F12
1.7357/SA217 WC6
1.7380/SA18 F22
1.7379/SA217 WC9
1.4903/SA182 F91
1.4901/SA182 F92
Other materials available on request
Accessories Position indicator
  • High tightness up to set pressure due to supplementary load
  • Smooth operation (no forces by popping)
  • Rigid body design
  • Self-aligning spring assembly
  • Low friction, spring compression
  • Mechanical lift stop ensures functional stability
  • Locking for hydrostatic test without additional parts
  • High allowable back pressure

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