plastic check valves

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Y check valve...
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pressure seal check valve...
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Swing check valve Swing check valves are the most common and best check valve for general-purpose use. Of all check valve designs, these valves produce the lowest pressure drop, when compared with other check valves of the same size. They feature a simple design that is easy to maintain.The swing check valve functions by allowing flow forces to move the disc from the closed p...
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piston check valve Piston check valve / Lift check valve Lift check valves are also called piston check valves. They are essentially globe valves without the stem and top works, allowing the disc to respond to flow rates and direction. The disc has linear movement and is typically body-guided with conical seating surfaces. Springs can be added above the disc to provide mo...
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single-plate wafer check valve Single-plate wafer check valve Single-plate wafer check valves prevent reverse flow with disc movement that is parallel with the flow. With this design, the disc is always in the flow path. Discs are spring-loaded to assist in seating. These wafer type check valves are bonnetless and are installed between flanges. The type of check valve disc ha...
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single-plate wafer check valve Single-plate wafer check valve This thin type of single-plate wafer check valves are swing type, that performs the same with swing check valve with much less cost. The disadvantage of this single-plate wafer check valves is, the inside diameters of the valves can only meet 60-80% of Norminal Pipe Size(NPS),  which limits the flow coefficien...
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wafer type check valve Dual-plate wafer check valve Dual-plate check valves are are bonnetless and mounted between pipe flanges (wafer style). In this case, the valve includes two spring loaded half-moon shaped discs that rotate about their shaft. The actual designs of these valves vary between design models and manufacturers. Most have multiple flat seats. The dual-plate che...
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pressure seal check valve Pressure seal check valve Pressure seal bonnet is suggested for better closure in high pressure condition, while bolted bonnet is still available for customer's option.  The pressure seal design incorporates a metal-to-metal seal that becomes tighter as the pressure increases. The initial preload deforms the taper on the soft iron gasket to mate...
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tilting disc check valve Tilting disc check valve Tilting disc check valves produce slightly more pressure drop than swing check valves of the same size. These check valves have a single-piece disc without a hinge. In response to flow forces, the disc pivots about hinge pins that are located within the geometry of the disc and slightly above the center-line of the valve body....
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Products description:
tilting disc wafer check valve Tilting disc check valve Tilting disc check valves produce slightly more pressure drop than swing check valves of the same size. These check valves have a single-piece disc without a hinge. In response to flow forces, the disc pivots about hinge pins that are located within the geometry of the disc and slightly above the center-line of the valve...
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forged steel check valve...
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