The ZMQ air operated thin film trip valve uses goes against the guidance structure, uses for parts the multi-spring implementing agency. Has the structure to be compact, the weight is light, the movement is keen, the fluid channel assumes the S streamline form, the pressure drop to lose, the valve capacity to be big slightly, merits and so on knocked-down and assemble convenience.
    The trip valve accepts from regulation meter's signal, the cut-off, opening either the change medium flows, achieves to technological parameter automatic control and so on pressure, current capacity, temperature or fluid position. Widely applies in the petroleum, the chemical industry, the metallurgy, the electric power, the light industry, the spinning and weaving and so on each Industry sector's production process automatic control and in the remote control system.
    This serial products has film, the plunger-type two kinds. The valve chest structure has single-seat, the sleeve, the double seat (two Three Contacts) three kinds, the seal form has the packing seal and the corrugated pipe seals two kinds, the product nominal pressure rank has PN10, 16, 40, 644 kinds, nominal caliber scope DN20~200mm. Is suitable the fluid temperature by - 60~450. The spillage rank is IV level orLevel. The discharge characteristic to open quickly.