Lift Wafer Check Valve is also named as Disc Check Valve, zgv Lift Wafer Check Valve is in Small Face to face dimension which is only of 1/4~1/8 of Standard Swing Flanged Check Valves. With Small Volume and Weight, Disc can be quickly closed which ensuring a very small water hammer pressure, Perfect Flow Passage gives a very small flow resistance. Lift Wafer check valves can be easily installed onto Pipelines both in Vertical and Parallel style, With Flexible actions and perfect sealing, The Valve Disc of Vatac Lift wafer check is with a short travelling journey which ensuring a very small impact caused by valve close, ZGV Lift Wafer Check is Integral Designed, provided with a compact structure and beautiful appearance. Reliable provided with Long time service life, providing with a device preventing Flow Direction Reverse or Stop which can be controlled automatically. The disc check valve consists of four main components: the body, a disc, a spring and a spring retainer. The disc moves in a plane at right angles to the flow of the fluid, resisted by the spring that is held in place by the retainer. The body is designed to act as an integral centring collar that facilitates installation. Where a 'zero leakage' seal is required, a soft seat can be included.

MAIN ADVANTAGES
» Suitable for all usable flange standards
» Short face-to-face length invaluable where space is limited
» Low weight results in low handling costs and ease of installation
» Low pressure drop and low opening pressure
» Fully open with small water velocity, without closing spring
» Excellent tightness
» Rapid response - oblique seat reduces closing travel
» The circular wafer body is designed to be clamped between two pipe fl anges.
» The valve disc is suspended on two heavy stub shafts with the selected suspension points giving the fastest closing possible.
» The stub shafts are sealed externally by integrally welded plates.The seat is oblique in order to give a short closing travel and thus a short closing time.
» Spring Loaded Construction reduces water hammering

TYPICAL DESIGN FEATURES ON VATAC WAFER TILTING DISC CHECK
» Small face to face dimension
» Light weight for easy site installations
» Allows opening at low pressure differentials
» Tight shut-off resilient seated design to “Zero” Leakge
» Metal to metal shut-off at both high and low pressure differentials