TEST AND DRAIN VALVES
Test and Drain Valves
Valves which are used on purpose of doing tests and maintenance in sprinkler systems. Test making in lines on purpose of alarm devices control is provided in case of one sprinkler water flow, by generating flow equal to one that flows from only one sprinkler thanks to orifices in different dimensions in it. The orifice diameters of the smallest sprinkler and test drainage valve in system must be equal. It is also used as drainage valve by switching valve position for discharging water in pipes. Vision light is present on it in order to observe the flow.
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