ZMQ, the ZSQ air operated thin film (piston) the 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 or the change medium flows, achieves to technological parameter automatic control and so on pressure, current capacity, 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 hauls in the 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, 464 kinds, nominal caliber scope DN20~200mm. Is suitable the fluid temperature by - 60~450. The spillage rank is IV level or VI level. The discharge characteristic to open quickly.

the trip valve uses the multi-spring implementing agency and the control element stands connected with three, entire may reduce approximately 30% highly, the weight may reduce approximately 30%.
the valve chest designs the constant section low resistance to flow flow channel according to the hydromechanics principle, the rated flow system number increases 30%.
the valve contents package has strict and seals two kinds softly, strict for built-up welding hard alloy, the soft seal for the nature material manufacture, closes the sealing property to be fine.
the balanced valve contents, enhanced trip valve's Xu Yong the differential pressure.
the corrugated pipe seal forms the complete seal to the motion valve lever, stopped up certainly the possibility which outside the medium leaked.
the plunger type implementing agency, the operation strength is big, the use differential pressure is big.