Customization: | Available |
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Media: | Gas, Water, Steam |
Driving Mode: | Electric, Pneumatic, Manual |
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A wafer butterfly valve is a type of quarter-turn valve that controls the flow of fluids in a pipeline. It is called a "wafer" valve due to its slim, wafer-like profile, which allows it to be sandwiched between two pipeline flanges without the need for additional flange bolts
The wafer butterfly valve consists of a thin, disc-shaped closure element known as the "butterfly" that pivots around a central shaft. The disc is mounted in the center of the valve body and is typically made of metal or a resilient material such as rubber or PTFE.
The valve body is usually constructed from materials like cast iron, ductile iron, stainless steel, or carbon steel, depending on the application requirements.
The valve's slim profile and lightweight design make it easy to install and suitable for use in space-constrained areas.
The operation of a wafer butterfly valve is straightforward: when the valve is in the open position, the disc is rotated parallel to the flow direction, allowing fluid to pass through the valve with minimal resistance.
To close the valve, the disc is rotated perpendicular to the flow direction, effectively blocking the flow of fluid through the pipeline.
Part | Materials |
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Body | Ductile Iron |
Seat | EPDM / BUNA / PTFE |
Disc | Ductile Iron / 316 Stainless Steal / Bronze |
Seat | BUNA / EPDM / PTFE |
Bushing | PTFE |
O-Ring | EPDM / BUNA |
Taper Pin | 316 Stainless Steel |
Stem | 416 Stainless Steel |