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Direct operated valves

Direct operated valves

incorporate a temperature sensor inside the valve, and operate independently of external power supplies.

Electrically operated valves

Electrically operated valves

are powered by an external electric actuator, with control provided by a separate electronic control unit, and temperature sensing by resistance thermometer.

Pneumatically operated valves

Pneumatically operated valves

are powered by an external pneumatic actuator, with control provided by a pneumatic controller with external temperature sensing.

Gas operated valves

Gas operated valves

are designed to control refrigerant gas pressures – and hence the temperature of refrigerated or air-conditioned areas – in marine systems in which the condenser is cooled by sea water.

Hydraulic lift for Amphibious Helicopter Carrier

Walton's electrically operated valves are installed on the hydraulic lift coolers of the Royal Navy's newest assault ship, H.M.S. Ocean.

Hydraulic lift for Amphibious Helicopter CarrierOfficially designated an Amphibious Helicopter Carrier, H.M.S. Ocean displaces 21,500 tonnes, and is 208 metres long. The ship can carry 500 troops and an extra 300 in emergencies.

She can operate up to 18 helicopters and in a time of war is also capable of transporting and operating Sea Harrier aircraft. The lifts are an essential part of her capability, enabling the helicopters and Harriers to be raised to and from her main deck.

  
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