Description
HYDRIVE Single Helm Lock Valve Only / 331A
This is a heavy-duty single helm lock valve without fittings. The 331C lock valve is a single double acting lock valve designed to prevent load motoring the helm unit. This should be used where the autopilot has a lock valve of it’s own, or to eliminate feedback from a highly active rudder. These valves are available with various fittings and kits to make dual station installations very simple. All Lock Valves Specifications:
- 331A: Single Helm Lock Valve Only without fittings.
- 331C12: Single Helm Lock Valve to suit 1/2″ Copper Tubing.
- 331C38: Single Helm Lock Valve to suit 3/8″ Copper Tubing.
- 331N12: Single Helm Lock Valve to suit 1/2″ Nylon Tubing.
- 331N38: Single Helm Lock Valve to suit 3/8″ Nylon Tubing.
HYDRIVE PART NUMBER: 331 SUITABLE FOR:
- Vessels – 30 metres+, 10-30 metres.
- Leisure, Commercial / High Performance.
For further details, see the following product data sheets for guidance:

