The ZMX Pneumatic Three-Way Cut-Off Valve adopts a top-guided structure and is equipped with a multi-spring actuator. It features a compact structure, light weight, sensitive action, an S-streamlined fluid channel, small pressure drop loss, large valve capacity, convenient assembly and disassembly, etc. The cut-off valve receives signals from the regulating instrument to cut off, open or change the medium flow direction, so as to achieve automatic control of process parameters such as pressure, flow, temperature or liquid level. It is widely applied in the production process automatic control and remote control systems of various industrial sectors such as petroleum, chemical industry, metallurgy, electric power, light industry, and textile.

This series of products has single-seat, sleeve, and double-seat (two-position three-way) valve body structures, and two sealing forms: packing seal and bellows seal. There are four nominal pressure ratings: PN10, 16, 40, and 64, and the nominal diameter range is DN20 - 200mm. The applicable fluid temperature ranges from -60°C to 450°C. The leakage grade is Class IV or Class VI. The flow characteristic is quick opening.