Handle-type butterfly valve
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Handle-type butterfly valve
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Product Introduction
A butterfly valve with a double-flanged design and a manual lever handle. It features a compact structure and easy operation, making it widely used in water treatment, chemical, and HVAC piping systems.
1. Product Structure and Composition
(1) Valve Body
Wafer Type Body
Flangeless design; it is clamped between two pipe flanges using bolts, resulting in a lightweight and space-saving structure.
Materials: Cast iron (HT200), cast steel (WCB), stainless steel (304/316), lined plastic (PTFE/PP).
Disc
Circular or elliptical; 90° rotation controls flow. The material is usually the same as the valve body or stainless steel with rubber coating (soft seal).
Seat
Soft sealing materials such as EPDM, NBR, and PTFE ensure excellent sealing performance (leakage level can reach ANSI Class VI).
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