Check Valves (up to 3,000 psi) have a metel to metal hard seat design with a one piece body and all steel construction. Both inlet and outlet ports have female end fittings. These are in-line unidirectional valves with standard spring crack pressures of 1, 5, and 65 psi. It have low pressure drop.
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.
Hard seat check valves utilize a durable metal to metal seal to withstand high flow surges and provide longer service life.
Features:
- Allows the fluid to flow in only one direction, protecting the system from fluid back pressure
- Low pressure drop
- Metal to metal hard seat provides longer life and is durable for high flow surges
- 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
