Sempell Model 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

Specs

Accessories:

Position indicator

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

Design:

Open bonnet
Balanced piston
Disc spring type
pneumatically assisted

Orifice diameter

66 mm – 438 mm

Set pressure:

10 bar – 450 bar

Size Inlet:

DN 100 – DN 600
NPS 4 – NPS24

Temperature Range:

Up to +700 °C / +1300 °F

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