Sempell controlled and uncontrolled non-return or swing check valves prevent unallowable pressure built up in the turbine coming due to back-flowing steam
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Sempell Model 803 DIN Bled Steam Check Valves
Sempell Model 803 DIN Bled Steam Check Valves
Specs
Certifications
PED, ASME B31.1
End Connection
Butt Weld
Application
High Temp, Steam turbine, HRSG
Body Design
Long Pattern
Material
Alloy, Carbon Steel, Metal, Steel
Operating Temperature
High Temperature
Pressure Class
ASME, PN
Process Connection Type
BWE
Seat/Seal Type
Swing, Metal-to-Metal
Shutoff Class
Class V (FCI 70-2)
Standards
ASME B16.34
Style
Direct-Operated
Valve Size
5 inch, NPS 3 / DN 80, 6 inch (DN150) and Larger, NPS 4 / DN 100
Valve Size Standard
NPS, DN
Valve Type
Engineered Product
Features
- Low maintenance gland can be retightened.
- Hardfaced sealing faces at disc and body seat.
- Low friction by burnished shaft.
- Surfaces treated bearing faces on each part with relative motion.
- Easy to disassemble bodies.
- Mechanical taking of control angle directly at disc lever.
- Mounting of pneumatic or hydraulic actuators.
- Actuator mounting right or left possible seen from steam flow direction.
- Universal connections by various design of welding ends and flanges as standard.
- Deviating designs of welding ends in regard of dimension and material as well as other actuators, limit switches and special designs according to customers‘ request can be supplied.