Wafer Butterfly Check Valve

PN10/PN16/CL125LB
2”~24” (50~750mm)
Cast Iron, Ductile Iron

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Wafer Butterfly Check Valve Descriptions

Wafer butterfly check valve is one type of dual plate check valve with two torsion springs added to each of pair valve plates, which closes the plates quickly and automatically, preventing the mediums from flowing back. Wafer butterfly check valve can be mounted between the two pipes in both horizontal and vertical directions. Wafe butterfly check valve is tightly sealed without leakage during the hydraulic pressure test. Flowspec Luokai can manufacture the wafer butterfly check valve with the face to face dimensions according to ANSI B16.10, with flanged dimensions of EN588-1, EN1092 PN10/PN16.
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1. FEATURES

  • Small in size, light weight, compact structure, easy maintenance
  • The quick action prevents of medium back flow
  • Short face to face and good rigidity
  • Easy installation, can be mounted horizontally and vertically
  • This valve is tightly sealed, without leakage
  • Safe and reliable operation, high interference-resistance
  • Interior and exterior fusion bonded powder epoxy resin with minimum dry film thickness of 250 microns

3. STANDARDS

  • Design & manufacturing: API594
  • Face to face: EN558-1, ANSI B16.10
  • Matching flanges: ANSI B16.1 125LB/150LB, EN1092 PN10/PN16
  • Inspection & testing: API598

2. TECHNICAL SPECIFICATIONS

  • 125LB / 150LB / 150PSI / 200PSI
  • Size: 2”~30” (DN50~750mm)
  • Materials: cast iron A126 B (GG25), ductile iron A536 65-45-12 (GGG50), DIN1691, DIN1693, BS EN1561, BS EN1563
  • Applicable medium: water, sewage, sea water, air, steam, oils, food, corrosive liquids
  • Applicable temperature: -15℃~+150℃ (higher temperature is available upon request)

4. APPLICATIONS

  • Water works, water projects
  • Environment protection
  • Public facilities
  • Building industry, real estate
  • Petroleum, chemical industry
  • Steel work, metallurgy
  • Food & beverage

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