How to Test a Check Valve for a Water Line

A check valve that is installed on the water line in your home is designed to allow water to enter and leave the valve. These valves are typically automatic and do not require external controls or user input to operate. Check valves can be a single or double valve unit. You must test a check valve to verify that the correct water pressure is coming into your home.Hydraulic Valves , Hydraulic Pressure Control Valves Instructions Open the high-side and low-side bypass valves. Turn the valves to the left or counterclockwise to open the valves. 2 Attach the high-side hose on the check valve test kit to the fitting, on the testcock, which is on the left side of the check valve. 3 Attach the low-side hose on the check valve test kit to the fitting, on the testcock, which is on the right side of the check valve. 4 Turn the #1 shut-off valve to the right or clockwise to close the valve. The #1 shut-off valve is the one that is connected to the water line in the house. 5 Open the testcocks that have the hoses attached. This needs to be done slowly. 6 Close the high-side bleed valve that is behind the left side of the check valve test kit. Close the low-side bleed valve that is behind the right side of the check valve kit. 7 Read the PSI pressure on the display of the check valve test kit.

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