As a professional high quality Hispeed® Test and Drain Valve manufacture, We supply Test and Drain Valve.The Test and Drain Valve provides both the test and the drainage function on wet-pipe sprinkler systems. It is lightweight and compact, containing a single handle ball valve with test orifice and sight glasses.The Test and Drain Valve is a single-handle, tri-position ball valve allowing both testing of the water flow alarm and draining of a wet-pipe fire protection system. We are expecting to become your long term partner in China.