ZMX pneumatic three-way shut-off valve with a top-oriented structure, with a multi-spring actuator. With a compact structure, light weight, sensitive action, the fluid channel was S streamlined, the pressure drop is small, the valve capacity, easy disassembly and so on. The shut-off valve accepts the signal from the adjustment instrument, cuts off, turns on or changes the flow of the medium, and automatically controls the process parameters such as pressure, flow, temperature or level. Widely used in petroleum, chemical, metallurgical, power, light industry, textile and other industrial sectors of the production process of automatic control and remote control system.

This series of products are thin film, piston type two. The body structure has a single seat, sleeve, two-seat (two three links) three, sealed in the form of sealing and sealing bellows two kinds of products, the nominal pressure level PN10,16,40,64 four, nominal caliber Range DN20 ~ 200mm. Applicable fluid temperature from -60 ~ 450 ℃. The leak level is grade IV or grade VI. The flow characteristics are fast.

Main parts materials

Body, Sealed Sleeve: HT200, ZG230-450 ZG1Cr18Ni9Ti ZGOCr18Ni12M02Ti 
Spindle, seat: 1Cr18Ni9Ti OCr18Ni12M02Ti 1Cr18Ni9Ti stacking Division too Lai alloy sleeve, valve plug: 1Cr18Ni9Ti OCr18Ni12M02Ti 1Cr18Ni9Ti stacking plant Taicai alloy filler: Teflon, flexible graphite corrugated Diaphragm: nitrile rubber clip reinforced polyester fabric Spring: 60Si2Mn 
Stem, putter: 2Cr13, 1Cr18Ni9Ti 
Spool, spool (soft): reinforced polytetrafluoroethylene bellows: 1Cr18Ni9Ti

Main structural map