Flange fire butterfly valve

The flange fire butterfly valve adopts a medium line design, and the valve seat adopts a floating structure. The valve is mainly composed of valve body, butterfly plate, valve seat, valve stem, and transmission operating mechanism

Flanged fire butterfly valves can be widely used as regulating or shut-off devices on fluid pipelines such as water supply and drainage, HVAC, and fire protection systems

The opening and closing component of the flange fire butterfly valve is a disc-shaped butterfly plate that rotates around its own axis inside the valve body to achieve the purpose of opening, closing, or adjusting

The advantages of flange fire butterfly valve include simple structure, small volume, and light weight

The sealing structure of the flange fire butterfly valve adopts a composite valve seat composed of polytetrafluoroethylene, synthetic rubber, and phenolic resin, which gives the valve seat elastic strength. At the same time, fully wrap the butterfly plate with polytetrafluoroethylene to provide stable performance

The main features of the flange fire butterfly valve are:

1、 Compact and lightweight, easy to disassemble and repair, and can be installed in any position

2、 Simple and compact structure, low operating torque, suitable 90 ° rotation opening speed

3、 The flow characteristics tend towards a straight line, and the regulation is powerful

4、 The connection between the butterfly plate and the valve stem adopts a pin free structure, which overcomes the possible internal leakage points

5、 The outer circle of the butterfly plate adopts a spherical shape, which improves the sealing performance and extends the service life of the valve. It can be opened and closed under pressure for more than 50000 times and still maintain zero leakage

6、 The seal is replaceable and has excellent sealing, achieving bidirectional sealing

7、 Butterfly plates can be coated with coatings such as nylon or polytetrafluoroethylene according to user requirements

8、 This valve can be designed for flange connection and clamp connection

9、 The driving mode can be selected as manual, electric or pneumatic

The flange fire butterfly valve is suitable for industries such as water supply and drainage, sewage, food, heating, gas, ships, hydropower, metallurgy, energy systems, and textiles, with a temperature of ≤ 120 ℃ or ≤ 150 ℃ and a nominal pressure of ≤ 1.6MPa. It is particularly suitable for bidirectional sealing and valve body corrosion prone situations, as a medium for regulating flow and intercepting flow