Sharpe Piston Check Valve Supplier-GNEE
Piston check valve belongs to a kind of automatic valve, its main role is to prevent the medium backflow, prevent the pump and drive motor reversal, as well as the container medium discharge.
valve sizes: 1/4" through 12"
Pressure Range: 150LB to 2500LB
Design STD.: API602
Test STD.: API598
Piston Type Check Valve Features
- Sealing ability
Seats are angled to prevent media buildup. When backflow occurs, the seat is flushed clean before contacting the piston.
- Full-Area Flow
The port openings on the valve are full ports. This differs from other piston check valve designs with smaller port openings. As a result, piston check valves provide more flow.
- Compact Design
The relatively small size of the valve makes it easy to install and operate. Lightweight construction also makes it cost competitive
- Spring Loading
The piston is spring loaded so the valve can be mounted vertically or horizontally. The area of the spring exposed to the medium is minimized. The guides correctly position the piston during the closed and open positions. This prevents the piston from jamming in the valve and ensures good and reliable closing.
How do piston check valves work?
Piston check valves work by utilizing the principle of differential pressure. To open a piston check valve, the fluid pressure must be greater than the outlet pressure. In this case, the fluid pressure energy becomes high enough to lift the valve disk off the valve seat. As the valve disc moves upward, it leaves room for fluid to pass through the valve. Fluid continues to flow through the piston check valve until the suction pressure drops. In this case, the fluid begins to reverse from the outlet side to the suction side due to the lower inlet pressure. However, piston check valve manufacturers design these valves to be highly pressure sensitive so that the valve closes immediately before a large amount of fluid begins to flow back. Fluid flowing backward can cause damage to equipment such as boilers or pumps. It can also lead to losses due to unwanted contamination. The use of piston check valves in certain industrial applications is therefore unavoidable.
GNEE-Profession Valves Supplier
Since its establishment in 2008, GNEE has been developing and advancing, and has reached project cooperation with more than 8,000 customers at home and abroad by virtue of quality products and services, and GNEE's valve products have touched more than 150 countries and regions around the world.GNEE continues to grow, and aspires to become the world's most internationally competitive supply chain group, and is looking forward to your joining us on the way of growth. If you have any questions, please feel free to contact us, we will reply you at the first time.
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