Ji'nan testing machine factory is specialized in the production of special pressure concrete testing machine, close the valve on the new valve orrepaired, old valve assembly is installed on concrete pressure testingmachine before, must do the tightness test.
The valve end is placed on the horizontal state, from the entrance into thevalve end with clean water, but also by the outlet end filling, filling the hole,standing for 1 minutes. Don't fall for qualified water hole. If there isdecreased, the valve leakage, disassembly, repair, overhaul, after installation, continue to water test, until the qualified so far, otherwise it will affect the accuracy of the special test concrete machine. This method is simple and convenient.