Wafer Check Valves

1.Introduction of Wafer check valves

The Wafer check valves are self-acting and fast-closing valves which prevent a  working medium from flowing back in a  pipeline. They are used in order to prevent from backflow the pumps, fans etc. TWafer check valve is not a shut-off valve.

2.Working medium of Wafer check valve：

Water, air, steam and other non-aggressive liquids and gases. The fluid flow direction may be only from one side of the valve. The fluid flow direction is marked with an arrow on the valve body.

3.Technical Data of Wafer check valves

4.Some precautions for wafer check valve

Working temperature of Wafer check valve：

Service temperature depends on the material of seals. - 46°C up to 260 °C
Technical description of Wafer check valve：
The two valve discs, eccentrically embedded, have springs which force the valve to close in case no pressure is available.
Operation of Wafer check valve：
The Wafer check valve are automatic, quick-acting valves. Movement of the discs is controlled by the flowing fluid.

5.Testing of Wafer check valve：

Wafer check valves are tested for strength and leakage, functionality and tightness acc. to EN 12 266 section 1, leakage grade is D (grade B on request). Connection to piping flanged ends acc. to EN 1092-1, EN 1759-1 or GOST 12815-80 face to face dimension acc. to EN 558 welded ends acc. to EN 12 627 face to face dimension acc. to EN 12 982

6.About Milestone Pump Company

7.Welcome to Contact Us

Welcome to vist our website about more valve, and please feel free to contact us if you have any questions.
Sale manager: Ranee Liang
Email: ranee@milestonevalve.com

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