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incorporate a temperature sensor inside the valve, and operate independently of external power supplies.
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are powered by an external electric actuator, with control provided by a separate electronic control unit, and temperature sensing by resistance thermometer.
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are powered by an external pneumatic actuator, with control provided by a pneumatic controller with external temperature sensing.
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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.
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Direct Operated Valve Case Studies
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| Aluminium bronze valves for Astute Class submarinesWhen 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...more |
| Auxiliary cooling control for Anchor Handling TugsWalton Engineering are pleased to have been selected to supply direct (self) operated valves to control the temperature of auxiliary systems on a fleet of 12 anchor handling supply tugs...more |
| Compressor lubricating oil for Qatar oil refineryA valve was required to control the temperature of lubricating oil on a compressor to be supplied to the Al Shahdeen oil refinery in Qatar...more |
| Gas Turbine lubricating oil for Bratislava refineryIn 2008 a catalytic hydrocracking plant at the Slovnaft refinery in Bratislava in the Slovak Republic was being upgraded...more |
| Pump Seal system for Russian chemical plant As part of an upgrade of the Nevinnomyssky Azot urea processing plant in Russia, a new Flowserve pump was required...more |
| Pump lubricating oil systems for El Merk project, Algeria Walton temperature control valves have been selected for a demanding application at the El Merk oilfield in the Algerian Sahara...more |
| Standby diesel generators for Sizewell B nuclear power station The reliability of Walton's valves make them ideally suited for use on emergency power generators...more |
| Temperature control mechanism installed within engine or gas turbine Walton Engineering has long-standing, established relationships with major diesel engine and industrial gas turbine manufacturers...more |
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