Flange butterfly valve is fully open position, butterfly plate thickness is the only flow through the body resistance, so the pressure drop generated by the valve is verymall, it has a good flow control characteristics. Butterfly valve with elastic seal and metal seal two sealing type. Elastic sealing valve, sealing ring can be embedded in the valve body or attached to the butterfly plate around.
1, compact lightweight, easy disassembly and maintenance, and can be installed at any location.
2, simple structure, compact, small operating torque, 90 degrees turn open quickly.
3, flow characteristics straight line, good adjustment performance.
4, butterfly plate and valve stem with no pin structure, overcome the possible internal leak.
5, butterfly plate outer circle using spherical shape, improve the sealing performance and prolong the service life of the valve, with pressure open and close more than 50 thousand times still keep zero leakage.
6, seals can be replaced, and reliable seal to achieve two-way seal.
7, butterfly plate can be sprayed according to user requirements coating, such as nylon or ptfe.
8, the valve can be designed into flange connection and clamp connection.
9, drive mode can choose manual, electric or pneumatic.
Flange butterfly valve is suitable for temperature are less than 120 or less than 150 DEG C, nominal pressure is less than 1.6MPa water supply and drainage, sewage, food, heating, gas, shipbuilding, hydropower, metallurgy, energy systems and textile industries, especially suitable for bidirectional seal and body corrosion situation, adjust the flux and closure of media.