product description: 

Standard specification:

1. Flange connection size: GB/T9113.1-2000 JB/T82.1-1994

2. Structure length: GB/T12221-1989

3. Pressure test: GB/T13927-1992, JB/T8692-1998

Main parameters of flange ventilation butterfly valve:

Seal test ≤1.5% (leakage)

Applicable medium:

Gas, flue gas, dusty gas, etc.

Product temperature:

-40-650°C

Product use of flanged ventilation butterfly valve:

The flanged ventilated butterfly valve is processed into a sealing ring by the homogenous material of the valve body. The driving modes are: worm gear manual, pneumatic and electric. Flange ventilation butterfly valve regulates flow or shut-off device as a gas medium in the dust-free cold air or hot air gas pipeline of ventilation, environmental protection engineering in metallurgy, chemical industry, building materials, power station, glass and other industries.

Features of flanged ventilation butterfly valve:

1. It is designed and manufactured by adopting the new structure of medium-line disc and short-structure steel plate welding. It is compact in structure, light in weight, easy to install, small in flow resistance and large in circulation. It avoids the influence of high temperature expansion and is light in operation.

2, no connecting rods, bolts, etc., reliable operation and long service life. Can be installed in multiple stations, independent of the flow of media.