Test And Drain Valve

Test and Drain Valve (Duyar) is used to test or repair part of the line.

This valve is used to conduct testing and maintenance on sprinkler systems. Thanks to its orifice available in different sizes it creates aflow equivalent to the flow passing along one sprinkler only and enables tests of alarm devices on the lines for checking purposes in the case of a sprinkler water flow.The orifice diameters of the smallest sprinkler and the test drain valve in the system should be equal. It is also used as a drain valve to discharge water in the piping by changing the position of the valve. It includes a sight glass to observe the flow.


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