Shanghai Pov Valve Co., Ltd. is a professional manufacturer of soft seat, metal seat and fire-safe high performance butterfly valves, our unique seat design is equal to Flowseal and Bray. Under an ISO 9001 Quality Assurance Program, it assures each valve we produce meets or exceeds your application requirements.
POV high performance butterfly valves are available in sizes from 2″ – 60″ in ANSI/ASME, DIN standards etc. and are available with a diverse range of manual and actuated options.
Our high performance butterfly valves are widely used in many industries including heating, ventilating and air conditioning, power generation, hydrocarbon processing, water and waste water treatment, and marine and commercial shipbuilding. Our products are also installed in applications as diverse as food and beverage processing, snowmaking and pulp and paper production. Configurations are available for harsh conditions as well as applications requiring nominal pressure and temperature ratings.
High Performance Applications
Construction, Pulp and Paper Mills
Chemical / Petro-Chemical , Oil Refineries and Oil Field
Liquified Gas / Refrigeration, Ship Building
Heavy Industrial, Hydrocarbon Processing
Power / Co-Generation Plants, Gas Piping
Steel and Iron Works, Local Area Energy Supply
Commercial Industrial
The double offset design of the POV High Performance Buttefly Valves assures reduced seat wear and bidirectional, zero leakage shut off throughout the full pressure range. At the initial point of disc opening, the offset disc produces a cam–like action, pulling the disc from the seat. This cam–like action reduces seat wear and eliminates seat deformation when the disc is in the open position. When open, the disc does not contact the seat, therefore seat service life is extended and operating torques are reduced. As the valve closes, the cam–like action converts the rotary motion of the disc to a linear type motion to effectively push the disc onto the seat. The wiping action of the disc against the seat prevents undesirable material build-up from slurries or suspended solids.
