Marine Valves
Cylinder Unloader Valve
The Autopilot Cylinder Unloader valve is a line mounted valve used to bypass the hydraulic steering cylinder so the boat can be steered manually. It is operated by a 12 watt solenoid and is available in 12 and 24 V.d.c. variants. It can be used in systems up to 72 bar and can be used with balanced cylinders or by connecting the additional port to a reservoir for unbalanced cylinders.
IP65 rated and designed for the harsh marine environment.
Technical data
| R2345 Autopilot Cylinder Umloader Valve | – in-line mounted G1/4 ported manifold – 12 and 24V variants – Max Pressure 72 bar |
Datasheet  |
Pilot Operated Check Valve
An in-line mounted valve that used to positively lock steering cylinders. This G1/4 valve can also be used when a helm pump is without check valves to prevent the autopilot pump back driving the helm. Service ports are positively locked until a pilot pressure is applied to unlock the check valve piston.
This valve can be used with balanced or unbalanced cylinders by connecting the additional port to an external reservoir.
Technical data
| R2254 Autopilot Pilot Operated Check Valve | – in-line mounted G1/4 using ports – Ratedf flow 4.5 l/min – Max Pressure 72 bar |
Datasheet |