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walton ENGINEERING CO. LTD.

 
The particular advantage of the Walton direct operated valve is that it operates independently of external power supplies.  It is therefore 'fit and forget'.

The valve contains a control mechanism within it which proportions the system's flow between the cooler and a bypass, thereby maintaining a constant temperature.  This mechanism is powered by a thermostatic element which expands at a pre-set temperature, creating the necessary movement.

The temperature range of each valve is fixed during manufacture and can only be altered by replacing its thermostatic element for one designed to operate at a different temperature range.

An external lever allows the automatic mechanism to be overridden and the temperature to be controlled manually. The ability to control manually at a temperature lower than that being automatically maintained is of particular value when an individual section of the system is running ‘hot’, or in the unlikely event of an element failure.

The valve can be supplied to any one of six possible handings to suit the piping arrangement.

Sizes range from 25mm (1") bore to 250mm (10") diameter.  The flow rates that these valves can accommodate are shown here.  Standard temperature ranges are shown here.

The direct operated valve remains an important part of our production having a proven track record and being popular with many of the worlds leading diesel engine and gas turbine manufacturers as a simple, reliable and cost effective method of temperature control.

Supplier of Temperature Control Valves and Optical Projectors

Copyright © 2005 Walton Engineering Co. Ltd.