"Extension rod butterfly valve" professional manufacturers, produced by our factory independent research and development of "butterfly" reliable quality, reasonable price, perfect after-sales service. "Extension rod butterfly valves are suitable for all kinds of light and heavy industry and building pipelines. Can well quality, global sharing! "Butterfly" is widely used in: chemical, petrochemical, petroleum, the papermaking, mining, electricity, liquid gas, food, pharmaceutical, water supply and drainage, municipal, mechanical equipment, electronic industry, urban construction and other fields.

Main characteristics:

 (1) the opening and closing butterfly valve convenient rapidly, energy saving, small fluid resistance, can often operate. 

(2) simple structure, small volume, light weight. 

(3) can transport the mud, and the apertures least accumulated liquid. 

(4) under low pressure, can achieve good sealing.

 (5) good regulation performance. Butterfly valve installation hints: (1) in the installation, the valve disc to stop in the closed position. (2) open position should be according to the butterfly plate to determine the Angle of rotation. (3) the butterfly valve with a bypass valve, open the bypass valve should be taken before opening. (4) should be in accordance with the manufacturers installation instructions for installation, weight big butterfly valve, should set up a solid foundation.

Description of the extension rod butterfly valve:

Extension rod butterfly valve is suitable for the temperature of 80 ~ 120 ℃ or less such as food, medicine, chemical, petroleum, electric power, textile, paper and other water supply and drainage, for adjusting flux on the gas pipeline and the role of intercepting medium. Its main characteristic is:

1, novel design, reasonable, unique structure, light weight, rapid opening and closing.

2, small operation torque, easy to operate, saving smart.

3, can be installed anywhere, easy maintenance.

4, seal can be replaced, sealing reliable performance to achieve two-way sealing zero leakage.

5, sealing material resistance to ageing, weak corrosion, long service life, etc.

Design standards: GB/T2238-1989

Flange connection size: GB/T9113.1-2000; GB/T9115.1-2000; JB78

Structure length: GB/T12221-1989

Pressure test: GB/T13927-1992; JB/T9092-1999