I would like to ask everyone: what is the standard for determining that a valve has passed the hydraulic pressure sealing test?
Thread Content
According to the existing national standards, there is a requirement for no visible leaks. If the pressure on the gauge of the valve does not drop when pressure is applied, and water cannot be wiped away from the sealed area using toilet paper within 1 hour, is this considered acceptable? Is it considered a leak?
The acceptance criteria for the hydraulic sealing test of valves are usually determined by various factors, including the test pressure value, the duration of the test, and the level of leakage. According to **standards, the hydraulic pressure sealing test generally requires that the valve show no visible leakage within the specified testing pressure and time to be considered successful. If the pressure on the gauge decreases, it may indicate that the valve’s sealing performance is poor and there is a leak. Additionally, if water at the seal area cannot be wiped clean with toilet paper within 1 hour, this is generally considered to indicate a leakage issue, and it may also be deemed unacceptable. However, the specific standards may vary depending on factors such as product type, industry standards, and user requirements; therefore, it is recommended to analyze each case on its own, refer to the product instructions, or consult a professional. During actual operation, it is also necessary to strictly follow the relevant regulations and procedures to ensure the performance of the valve and its safe use. .