This is a nickel-plated brass pilot-operated check valve. Connection 1 has G 1/4 inch male threads and connection 2 has a 6 mm push-in fitting. It also has a 4 mm push-in actuating connection (check valve). The check valve function can be used for a short intermediate stop of the actuator. If there is control pressure on the 4 mm push-in port, flow can travel in both directions between connection ports 1 & 2. If there is no control pressure on the 4 mm push-in port, flow can only travel from connection 2 to connection 1. It has an NBR seal that makes it suitable for applications within a temperature range from -20 to 80 °C (-4 to 176 °F). The operating pressure range is 0.5 to 10 bar (7 to 145 psi). There is an arrow on the body of the fitting indicating flow direction.
Pros:
- Suitable for neutral and non-corrosive media
- It has manual emergency operation
Specifications
Connection size : 1/4 inch
Push-in connection : 6 mm
Push-in connection (smaller) : 4 mm
Connection type : Push-in,Outer thread cylindrical BSPP-G
Seal material : NBR (nitrile rubber)
Max pressure at 20 °C (bar) : 10
Min temperature (°C) : -20
Max temperature (°C) : 80
Check valve feature : Emergency manual operation,Pilot-operated
Min opening pressure (bar) : 0.5
Model : Elbow
Surface protection : Nickel-plated

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