Check Valve (up to 6,000 psi) are soft seat, zero leakage poppet check valves with a two piece construction. The two piece construction allows for a variety of end fitting combinations.
Basic check valve construction consists of a valve body with an inlet and an outlet port. Inside, a moveable poppet valve is controlled by spring pressure. In most cases the valve is normally closed, opening when the fluid pressure is greater than the spring force (crack pressure), thus allowing the fluid to flow in only one direction. When reverse flow attempts to enter though the outlet the poppet closes and flow through the valve is stopped.
Soft seat check valves have an O-ring or similar elastomeric seal between the poppet and body for improved leak resistance. The soft seat design is most compatible with "clean" systems and is not indented for use in systems that have high surge flow. The seal material dictates the temperature range of the valve.
Features:
- Allows the fluid to flow in only one direction, protecting the system from fluid back pressure
- Soft seated valve creates a leak free seal
- Fluorocarbon seal is standard
- Custom shapes and configurations can integrate special features to reduce the number of components and potential leak points in a system
Applications:
- Industrial, mobile, and construction equipment
- Restrictor Check Circuit
- High/Low Pump Circuit
- Slow Advance/Rapid Return Circuit
- Oil Cooler By-Pass Circuit
- Sequence Circuit
- Pilot Pressure Circuit
- Accumulator Circuit
