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Sempell Dewrance Model B21/B51 Check Valve
Product Description
The Sempell Dewrance bled steam check valve has been designed specifically for non-return turbine protection on power generation steam turbines.
Features
- Excellent reliability, internal counterweight to balance disc under low load conditions
- Tilting disc design for quick closing due to lower center of gravity
- Lightweight disc with minimum travel, for quick closing in less than 1 second
- optimum performance under all flow conditions
- Pneumatic power assistance acts directly onto disc, without leakages to inhibit operation
- Low cost maintenance, expanded graphite gasket pressure seal design
- Surface treated hinge pin, supported in surface treated bearings, giving a low coefficient of friction and hard wearing surface for maximum performance
- Easy access through cover
- Easy access through cover
Specifications
- Certifications
- SIL capable, ASME B31.1, India Boiler Registration, PED
- End Connection
- Butt Weld
- Material
- Carbon Steel, Steel, Metal, Alloy
- Pressure Class
- ASME, PN
- Shutoff Class
- Class V (FCI 70-2)
- Valve Size
- 6 inch (DN150) and Larger
- Valve Size Standard
- DN, NPS
- Valve Type
- Engineered Product, Triple Offset Valve
Documents & Drawings
