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Sempell Model SOT High Pressure Steam Safety Valve, Disc Spring
Sempell SOT High Pressure Steam Safety Valve, Disc Spring
High pressure safety valve for boiler protection in disc spring design with welding end or flanged connections
Sempell Model SOT High Pressure Steam Safety Valve, Disc Spring

Specs

Size Inlet:
DN 100 – DN 600
NPS 4 – NPS24
Temperature Range:
Up to +700 °C / +1300 °F
Set pressure:
10 bar – 450 bar
Orifice diameter
66 mm – 438 mm
Design:
Open bonnet
Balanced piston
Disc spring type
pneumatically assisted
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
Accessories:
Position indicator

Features

  • High tightness up to set pressure due to supplementary load
  • Smooth operation (no forces by popping)
  • Disc spring allows higher forces compared to helical spring. This results in high set pressures even for high capacities.
  • Mechanical lift stop ensures functional stability
  • Locking for hydrostatic test without additional parts
  • High allowable back pressure