PN16 PN25 Cast Iron Rubber Seat Butterfly Swing Check Valve

Use: Wafer type double disc swing check valve are used in all kinds of pipes under the pressure of PN1.6~16.0MPa,andworking temperature of-196~425℃They are mainly used to prevent the reverse flux of the media. Characteristics: 1. Short length, small volume and light weight; 2.Either soft sealing or hard sealing can be applied for the sealing surface according to different working conditions, both of which promise a perfect sealing effect; 3.With a small starting pressure, the valve discs can be fully opened under a very small pressure difference;4. Fast discs closing and small water hammer pressure; 5. Convenient installation and applicability on both level and vertical pipes; 6.Different materials for the parts, sizes and forms of the valves surfaces are available for free combination according to the working facts and the customer's requirements.