Focus On Triple Offset Butterfly Valve 

Advantages and structure diagram of butterfly valve

The opening and closing part of butterfly valve is a disc-shaped butterfly plate, which rotates around its own axis in the valve body, so as to achieve opening and closing or adjustment. Butterfly valve is usually less than 900 from full open to full close. Butterfly valve and butterfly rod have no self-locking force. In order to position butterfly plate, worm gear reducer should be installed on valve rod. The adoption of turbine reducer can not only make the disc have self-locking ability, make the disc stop at any position, but also improve the operation performance of the valve.

Advantages and structure diagram of butterfly valve

The industrial butterfly valve is characterized by high temperature resistance, high pressure range, large nominal diameter, carbon steel valve body and metal ring instead of rubber ring. Large high temperature butterfly valve is welded with steel plate, which is mainly used for high temperature medium flue and gas pipeline.

(1) Advantages of butterfly valve:

1. Easy to open and close, fast, labor-saving. Small fluid resistance, can be operated frequently.
2. It has the advantages of simple structure, small volume and light weight.
3. It can transport mud and store the least liquid at the pipe mouth.
4. Under low pressure. Good sealing can be achieved.
5. Good regulation performance.

(2) Installation and maintenance of butterfly valve:

1. During installation, the disc should stop at the closed position.
2. The opening position should be determined according to the rotation angle of the butterfly plate.
3. For butterfly valve with bypass valve, the bypass valve should be opened before opening.
4. The installation shall be carried out according to the installation instructions of the manufacturer, and the heavy butterfly valve shall be provided with a firm foundation.

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