Product Mode： Fixed mode of products： Test Speed： Number of tests： Equipment size： Description: Four way valve life testing machine, referring to national standards such as GB 4706.32 (safety) and JB/T 7230 (performance). The device is used to simulate the continuous and automatic switching action cycle of a four-way valve under specified pressure, flow rate, and voltage conditions. By monitoring its key parameters, evaluate the mechanical life, sealing performance, and electrical characteristics of the four-way valve