The valve test bench is used for reliable sealing performance after valve and maintenance. The last process after valve production and valve disassembly and maintenance is pressure test. Testing methods should be based on national or international standards. American Standards (ANSI/ASME, API), German Standards (DIN), European Standards (EN) and International Standards (ISO) are the most commonly used standards. The pressure test bench test of valve sealing performance can be divided into the following types: shut-off valve (gate valve, globe valve, ball valve, check valve, etc.). ) Control valve safety valve Although the valve pressure test testing standards are different, the testing method is roughly the same for each valve. The most important thing is to test the strength of the valve body, test the tightness of the valve body, valve stem and valve shaft joint, test the tightness of the valve seat and the seat, and determine the take-off pressure of the safety valve (valve test bench). Achieving maximization of benefits and durability and stability of maximization of benefits are the business goals of every healthy enterprise.