How can the lifespan of a valve be tested in advance

It’s very troublesome to send a large quantity to the manufacturer for repair. It is possible to develop an inspection plan based on any internal leakage issues identified during operation, and to carry out targeted inspections of the valves during major repairs depending on the properties of the materials

Valves are a bit tricky to discuss; various factors need to be taken into account. For example: material, medium, temperature, operating conditions, etc. Valves used for controlling fluid flow are generally designed for low pressures; they are often made of cast iron and serve to open and close the flow, which facilitates maintenance. If a pipe fails after 3 years, using such a valve to shut off the flow may not be effective, as rust can develop on the valve over time. Furthermore, in the cold winters of the north, when steam is transported through pipes, some valves are not able to withstand such conditions; this is determined by taking into account the low temperatures during winter and the medium being transported. The valve may crack or leak due to the principle of thermal expansion and contraction. So under normal circumstances, according to **the standard service life for valves is 5 years. (Note: 1. The material must meet the standards. 2. Standards come in old and new versions; some standards have not been updated yet, so it remains 2 years. 3. Some valves are only viable for a few months, while others can last around 10 years. This needs to be considered comprehensively. ) This standard is not easy to find, as there is the General Flying Standard, and further subcategories such as manufacturing standards, etc.... As for the applicable lifespan periods you’re looking for, you can search on valve forums or blogs; it might be helpful to you.