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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.

Aluminium bronze valves for Astute Class submarines

When the builders of the latest class of nuclear-powered attack submarines for the UK’s Royal Navy needed temperature control valves for the vessels’ reactor cooling circuits, they turned to Walton Engineering.

Having supplied valves for the same application on the previous three classes of submarine (Swiftsure, Trafalgar and Vanguard Classes), they knew that the reliability and durability of Walton valves are well proven.

Aluminium bronze valves for Astute Class submarines

For the Astute Class, it was necessary for the valves’ flanges to be thicker than would usually be required for aluminium bronze valves. By working closely with our ISO 9001 accredited foundry suppliers, we were able to meet the requirement by casting the valve bodies off a pattern normally used to produce steel castings.

As with the previous classes of submarine, Walton was able to meet the stringent quality and shock resistance requirements demanded by the customer for this application.

  
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