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.