Butterfly Valve

Product Description

A butterfly valve is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required. The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.Butterfly ValveA butterfly valve is from a family of valves called quarter-turn valves.The “butterfly” is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the fluid. The valve may also be opened incrementally to throttle flow.There are different kinds of butterfly valves, each adapted for different pressures and different usage. The resilient butterfly valve, which uses the flexibility of rubber, has the lowest pressure rating. The high performance butterfly valve, used in slightly higher-pressure systems, features a slight offset in the way the disc is positioned, which increases the valve’s sealing ability and decreases its tendency to wear. The valve best suited for high-pressure systems is the triple offset butterfly valve, which makes use of a metal seat,[clarification needed] and is therefore able to withstand a greater amount of pressure.

Hebei Lufeng Piping Equipment Co., Ltd. is ISO 9001 certified exporter & supplier of steel piping materials. We are committed to provide customers quality products with competitive prices and efficiency service.

Established in 2008, our experienced and friendly staffs are dedicated to provide you professional and considerate services. Located in Cangzhou city—called “the manufacturing base of China pipe fittings” and near to Tianjin port, geographic and economic advantages enable Lufeng to provide customers good prices and delivery time.

Our pipeline products include steel pipes/ tubes, buttwelding fittings, steel flanges, forged fittings, valves, gaskets, fasteners and other accessories. They are strictly manufactured according to ISO, ASME, ASTM, ANSI, API, MSS, AWWA, DIN, BS, EN, JIS, GB and other international standards. Production as per customer’s drawings or requests is also available.

In early 2023, we opened a new warehouse for duplex stainless steel products. Used for storage of duplex stainless steel 2205 & 2507 round bars, steel plates, steel pipes and flange blanks. These materials are from the most professional manufacturers in China.

LUFENG will be at your service at any time. If you have any needs or requirements, please contact us freely. Look forward to be your long-term and trusted partners for pipeline in China.

Catalogue of LFPCO-2020.pdf

Letter of presentation.pdf