This is a stainless steel spring loaded check valve that allows free flow in one direction and prevents it from going in the opposite direction. The flow direction is from tube to thread. Connection 1 has a 12 mm compression ring with a M20x1.5 union nut, rated for S (heavy) load classes. Connection 2 has G 3/8 inch male threads. It has an FKM seal that makes it suitable for applications within a temperature range from -20 to 200 °C (-4 to 392 °F). The operating pressure range is 1 to 400 bar (15 to 5800 psi). It is made in accordance with ISO 8434-1.
Pros:
- Adheres to ISO 8434-1
- Stainless steel material has better chemical resistance than other materials
- Suitable for hydraulic applications
Specifications
Connection size : 3/8 inch
Union nut thread : M20 x 1.5
Load class (DIN 2353) : S (heavy)
Connection type : Compression ring,Outer thread cylindrical BSPP-G
Material : Stainless steel
Seal material : FKM (FPM)
Max pressure at 20 °C (bar) : 400
Min temperature (°C) : -20
Max temperature (°C) : 200
Check valve feature : Flow to the thread

![FKM O-ring 9 x 1mm (OD 11mm) 80 Shore A [50 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_14c05a4b-e320-4191-a1ac-af798b1c5adb.webp)
![FKM O-ring 9 x 2mm (OD 13mm) 80 Shore A [50 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_b8ebdc65-f23d-4782-885d-f34598cf3478.webp)
![FKM O-ring 8.5 x 1mm (OD 10.5mm) 80 Shore A [50 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_2b77ae00-bf13-4bcd-84a2-e90c57983769.webp)
![EPDM O-ring 9 x 1.5mm (OD 12mm) 70 Shore A [50 Pieces]](https://www.drillforgepro24.com/wp-content/uploads/2026/06/or.19a44f36_5ce887fc-0734-4905-b97e-6b06af60e1f7.webp)
Reviews
There are no reviews yet.