Wafer Butterfly Valve

Wafer Butterfly Valve Manufacturer

MVS Valve’s Wafer Butterfly Valve delivers a sleek, space-saving solution for flow control in tight piping systems. These valves are precision-engineered to API 609 and BS 5155 standards, ensuring reliable performance through sturdy disc construction and smooth stem bearing operation. Adjusted to fit pipelines from DN50 to DN1200 wafer butterfly valve range, they offer consistent shut-off and exceptionally low operating torque, making them ideal for both manual and automated systems.

Constructed with a wafer-style body, this valve is available with either resilient or PTFE-coated wafer butterfly valve seats, providing superior sealing and chemical resistance. For applications requiring higher purity or corrosive media handling, the stainless steel wafer butterfly valve variant ensures durability without compromising flow integrity. The PTFE lining further enhances chemical compatibility, reducing the risk of contamination in sensitive processes.

The API 609 wafer type butterfly valve design accommodates pressures up to PN 16/10 bar and even full vacuum conditions, supporting demanding industrial, water, HVAC, and light chemical applications. Added flexibility comes through ISO 5211 actuation mounting, which allows for seamless integration with manual handles or automated actuators—making this one of the best wafer butterfly valves for process industry use cases.

From its compact wafer-body and rugged seat options to standardized actuation compatibility and compliance with international standards, the MVS Wafer Butterfly Valve is a dependable, high-performance product for industries seeking effective flow control in limited spaces.

Categories: Butterfly Valve, Industrial Valves

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Specification

Specification	Details
Valve Type	Concentric wafer-style butterfly valve
Pressure Rating	Class 150 (PN 10–16); 2″–12″ rated up to 16 bar, ≥14″ up to 10 bar
Size Range	DN 50–DN 1200 (2″–48″)
Standards	API 609 / BS 5155; face‑to‑face per ISO 5752/EN 558; tested to API 598, EN 12266‑1, ISO 5208
Shut-Off Class	Class VI bubble-tight when resilient seated
Body Type	Wafer design, suitable for bi-directional and vacuum service
Torque Reduction	Upper & lower bearings reduce wear, ensure smooth rotation
Actuation	ISO 5211 mounting pad—lever, gearbox, pneumatic or electric
Operating Media	Water, gas, steam, HVAC fluids, light chemicals
Temperature Range	–29 °C to +200 °C (depends on seat material)

Material of Construction

Body	Ductile Iron (ASTM A536), Cast Carbon Steel (WCB)	Stainless Steel CF8/CF8M, CF3M, Duplex, Alloy 20, Hastelloy C‑276, Titanium
Disc	Ductile Iron (EN‑GJS‑400‑15) or CF8M SS	Aluminum Bronze, PFA/PTFE coated, special alloys
Stem	Stainless Steel 416/410/316	Duplex SS, 17‑4PH, Monel
Seat / Liner	EPDM, NBR, Viton	PTFE
Bushings & Bearings	PTFE bushings; Acetal or bronze bearings	Graphite, high-temp variants
Coatings	Standard epoxy/poly powder on iron bodies	Chemical-resistant linings (e.g. food-grade, potable water)