The pressure-tightness testing equipment for spare parts utilizes high-pressure water as the primary testing source to conduct high-pressure tightness testing on the inspected products. The testing platform is controlled by a PLC and features a 17-inch touch screen display in Chinese. It employs wear-resistant silicone as the sealing component and utilizes a high-precision pressure transmitter to assess the tightness of the product based on pressure variations and the resulting upper and lower pressure limits. The fixture is designed according to customer-provided product designs, achieving over 90% universality for a wide range of products. If the test is successful (OK), the system automatically proceeds to the next testing step. If the test is unsuccessful (NG), the corresponding indicator light illuminates, accompanied by an audible and visual alarm. The components used in the testing equipment are sourced from both imported and renowned domestic brands, ensuring stable and reliable operation. The operation is simple and convenient, and relevant test data can be exported via USB.