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Wafer Butterfly Valve

Wafer Butterfly Valve

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  • Wafer Butterfly Valve
  • Wafer Butterfly Valve
  • Wafer Butterfly Valve
  • Wafer Butterfly Valve
One-Piece Thru Shaft: Ensures strength and dependability of valve and positive positioning of valve plate.
O-Ring: Helps prevent shaft leakage.
Precision Taper Pin: Ensure positive vibration proof, shaft to disc connection. Field replaceable.
Precision Disc Profile: Provides bubble-tight shut-off and assures maximum effective torque and longer seat life.
Supported Shaft Seal: Bonding of elastomer to phenolic backing ring protects against shaft leakage, a common cause of distortion and deformation.
Applicable to both gaseous mediums and liquid mediums.
Bi-directional shutoff.
Optional maintenance pipeline terminal.
Size: DN40 - DN1200
Connection: Wafer
Design standard: API 609, BS EN593.
Face-to-Face dimension: API 609, ISO 5752, BS EN558, BS 5155.
Flange drilling: ANSI B16.1, BS EN1092-2, DIN 2501 PN10/16, BS 10 Table E,JIS 10k/16k.
Test: API 598.
Level handle, worm gear, pneumatic actuator are all optional

Pressure & Temperature:
Working Pressure 10bar / 16bar
Testing Pressure Shell: 11 bar / 17.6 bar; Seal: 15 bar / 24 bar.
Working Temperature -10oC to 80oC (NBR); -10oC to 120oC (EPDM)
Suitable Media Water, oil and gas.

Part Material
Body GG20, GGG40, WCB, CF8
Disc Nickel ductile iron; stainless steel; Al bronze etc.
Stem Stainless steel
Bushing PTFE
"O" Ring NBR
This valve is used for throttling or shutting off the flow of corrosive or non-corrosive gased, liquids and semi-liquid. It can be installed in any selected position in pipelines in the industries of petroleum processing, chemicals, food, medicine, textile, paper making, hydroelectricity engineering, building, water supply and sewage, metallurgy, energy engineering as well as light industry.

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