Product Description
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The wafer flange clamped butterfly check value ,a saveenergy product,is manufactured based on the advanced technology and in accordance with relative international standards.This product is featured by excellent retaining performance,high safety and reliability and low flow resistance. It is suitable for systems in the industries of petrochemical ,food processing,medicine,textile,paper-making,water supply and drainage,metallurgy,energy and light industry etc used as a check valve in one way.
Features：1.Small in size, light in weight, compact in structure, easy in maintenance
2.Two torsion springs are used excerting on each of the pair valve plates,which close the plates quickly and automatically
3.The quick-close action prevents the medium from fiowing back and eliminates water-hammer effect
4.This valve is short in length ,so that it is rigid and easy to mount
5.It is easy to install on pipeline which is laid horizontally or vertically
6.This valve is tightly sealed,without leakage under the pressure water test
7.Safe and reliable in operation,high interference--resistance
8.The connection dimension of flanges accord with the standards of GB/T17241.6--1998
9.The face to face dimensions are in accordance with GB/T12221-1989,ISO5752-82.
The stem of the valve should be perpendicular to the horizontal level when the valve is mounted on horizontal pipeline. For vertical installation the direction of flow should be downward.