The Bermad S-400-3W is a compact 3-Way Solenoid Pilot Valve that can control valves independently, or in combination with other control circuit accessories. It excels in its low power consumption and low sensitivity to dirt and voltage variations.

The Model S-400-D-3W-BB, due to its internal diode rectifier, provides remarkably high switching power. The Model S-400-R-3W-BB is also lightning-resistant. The hydraulic base features a manual override and consists of a bracket for attaching to the valve or to a solenoid manifold.