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Sempell-P-P000133

Sempell Dewrance Model B21/B51 Check Valve

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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