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Function and characteristics of flanged butterfly valve!


Butterfly valve simple structure, small size, light weight, only by a few parts. And only need to rotate 90° can quickly open and close, simple operation, while the valve has good fluid control characteristics.


The sealing principle and structural characteristics of flanged butterfly valve are the same as those of ordinary linear butterfly valve.


The sealing structure of flanged butterfly valve is composed of polytetrafluoron, synthetic rubber and phenolic resin, so that the seat has better strength with elasticity. At the same time, the butterfly plate is fully covered with ptfe, so that the butterfly plate has strong corrosion resistance.


The role is to provide drainage, gas pipeline to adjust the flow and interception medium. And only need to rotate 90° can be quickly closed, simple operation, while the valve has good fluid control.


The main characteristics of flanged butterfly valve are:

1, small and light, easy disassembly and maintenance, and can be installed in any position.

2, simple structure, compact, small operating torque, 90° turn to open quickly.

3, the flow characteristics of straight line, good regulation performance.

4. The connection between butterfly plate and valve stem adopts no pin structure to overcome the possible internal leakage point.

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 50,000 times still maintain zero leakage.

6, the sealing parts can be replaced, and the sealing is reliable to achieve two-way sealing.

7, butterfly plate can be spraying coating according to user requirements, such as nylon or ptfe. 

8, the valve can be designed as flange connection and clamping connection.

9, the driving mode can choose manual, electric or pneumatic.

Flange butterfly valve is suitable for temperature ≤120℃ or ≤150℃, nominal pressure ≤ 1.6mpa water supply and drainage, sewage, food, heating, gas, ship, hydropower, metallurgy, energy system and textile industries, especially for two-way sealing and valve corrosion occasions, as flow regulation and closure medium.


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