Positive and reliable isolation, with low operating forces.
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Sempell Dewrance Low Pressure Parallel Slide Valve
Sempell Dewrance Low Pressure Parallel Slide Valve
Specs
Certifications
India Boiler Registration, ASME B31.1, PED
End Connection
Butt Weld, Flanged
Application
Boiler, Balance of Plant, Steam turbine, Steam Headers, HRSG, High Temp, Evaporators & Recovery Boiler, Cogeneration, Boilers
Body Design
Top Entry, Long Pattern
Material
Carbon Steel, Steel, Alloy
Operating Temperature
High Temperature
Pressure Class
ASME
Process Connection Type
CL600RF, CL300RF, BWE, 600RF, 300RF
Seat/Seal Type
Parallel Slide, Metal-to-Metal
Shutoff Class
Class V (FCI 70-2)
Standards
ASME B16.34
Style
Direct-Operated
Valve Size
5 inch, 6 inch (DN150) and Larger, NPS 2-1/2 / DN 65, NPS 3 / DN 80, NPS 4 / DN 100
Valve Size Standard
NPS
Valve Type
Gate
Features
-
Excellent reliability
- Self cleaning action between disk and seat
- Welded-in seats hard-faced with Stellite® or equivalent
- Low cost maintenance
- Lower operating forces than wedge gate design
- Interchangability of pa
- Improved performance
- Lower pressure drop characteristic than wedge gate valve
- Reduced actuator size/cost by 30% when compared to wedge gate
- Improved sealing assisted by line pressure
- Low operating torque
- seals on position not torque