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Wafer Butterfly Valve

The wafer style butterfly valve is designed to maintain a seal against bi-directional pressure differential to prevent any backflow in systems designed for unidirectional flow. It accomplishes this with a tightly fitting seal; i.e., gasket, o-ring, precision machined, and a flat valve face on the upstream and downstream sides of the valve.

Details

Wafer Butterfly Valve

The wafer style butterfly valve is designed to maintain a seal against bi-directional pressure differential to prevent any backflow in systems designed for unidirectional flow. It accomplishes this with a tightly fitting seal; i.e., gasket, o-ring, precision machined, and a flat valve face on the upstream and downstream sides of the valve.


Function

A wafer butterfly valve's function is to retain a seal to protect against dual-directional pressure differential in the flow of fluid. In other words, the wafer version of butterfly valves was designed to hold a tight seal, safeguarding against bi-directional pressure differential in order to avoid any backflow in systems that have been manufactured for uni-directional flow.

 

Body materials :carbon steel, stainless steel,  Alloy Steel, Duplex Steel.
special material (duplex, inconel)

Body Material: WCB, CF8, CF8M, CF3, CF3M, CAST IRON ,A105 ,904L ,etc.

Valve seat materials :inconel, others on request

Seal materials   graphite / stainless steel, inconel, stainless steel, PTFE
Size range(s):NPS 2 - 48 (DN50 - 1200)

Pressure rating:ASME Classes 150 - 600

Disc Sealing:    PTFE, Graphite Laminated
Operation:  Lever, Gear, Electric, Pneumatic, Hydraulic

Standards:ASTM, ANSI,AWWA, JIS,BS, GOST, DIN etc.

 

Applicable Standard
 Design Standard:     API 609, MSS SP-67, MSS SP-68, BS 5155
 Face to Face:   API 609, ASME B16.10, BS 5155, EN1092
 End Connection:     ASME B16.5, ASME B16.47
 Inspection and Test: API 598/API6D/EN12266-1

 

Wafer Butterfly Valve1.jpgWafer Butterfly Valve2.jpgWafer Butterfly Valve3.jpg 


Hot Tags: wafer butterfly valve, China, Wenzhou, manufacturers, suppliers, factory, customized, price list, in stock, made in China

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