Eurofluid ERM NG6 (CETOP 3) modular check valve

Check valves to fit as a sandwich in an NG6 (CETOP 3) stack, without pipes. There are two families in the list:

• ERM203 (simple, direct operated): check on port P, T, A, B or on A and B; 0.5 bar cracking pressure, up to 300 bar, weight 0.9 kg. The ERM203T3 version is for T with a 3 bar spring
• ERM103 (pilot operated): check on A (ERM103A3) or on B (ERM103B3), opened by the pressure of the opposite line; pilot ratio 1:3, 3 bar spring, up to 300 bar, weight 1.2 kg

The simple ones stop oil flowing back in one port; the pilot-operated ones hold an actuator on one side while the solenoid valve is at rest.

Source: Eurofluid Hydraulic General Catalogue technical catalogue.