This is a zinc plated steel spring loaded check valve that allows free flow in one direction and prevents it from going in the opposite direction. It has a 20 mm cutting ring with a M30x2 union nut on both sides. Rated for S (heavy) load classes. It has an NBR seal that makes it suitable for applications within a temperature range from -20 to 100 °C (-4 to 212 °F). The operating pressure range is 3 to 400 bar (44 to 5800 psi). It is made in accordance with ISO 8434-1.
Pros:
- Adheres to ISO 8434-1
- Suitable for hydraulic applications
Specifications
Union nut thread : M30 x 2
Load class (DIN 2353) : S (heavy)
Connection type : Cutting ring
Material : Steel
Seal material : NBR (nitrile rubber)
Max pressure at 20 °C (bar) : 400
Min temperature (°C) : -20
Max temperature (°C) : 100

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