What is high pressure closure test of valve?

A high-pressure closure test of a valve is a procedure used to verify the integrity and sealing capability of a valve under elevated pressure conditions. During the test, the valve is subjected to a specified high pressure to ensure it can effectively close without leaking. This test is essential for ensuring that valves function reliably in critical systems, particularly in industries such as oil and gas, water treatment, and power generation. Successful completion of this test confirms that the valve meets safety and performance standards.