ZMQ cut-off valve adopts pneumatic tee guide structure, with many spring actuators. With compact structure, light weight, action quick, fluid channels in an s-shaped streamline, small pressure drop loss, large capacity of valve, convenient tear open outfit.

Cut-off valve receives signals from the monitoring instrument, cut off the flow direction of medium, open or change, reach the pressure, flow, process parameters, such as temperature or liquid level automatic control. Widely used in petroleum, chemical, metallurgical, power, light industry, textile and other industrial sectors of production process automatic control and remote control system.

The series of products have a diaphragm and piston type two kinds. Body structure with single seat, sleeve, two-seater (two tee), three kinds of sealing form has two kinds of packing seal and bellows seal, the nominal pressure level products are PN10, 16, 40, 64 four, nominal diameter range 20~ 200 mm. Apply fluid temperature by 60~450℃. Leakage of grade IV level or Ⅵ level. Flow characteristic of quick opening.

Main parts and materials

Body, sealing sleeve : HT200, ZG230-450 ZG1Cr18Ni9Ti ZGOCr18Ni12M02Ti

Valve, valve seat : 1Cr18Ni9Ti OCr18Ni12M02Ti 1Cr18Ni9Ti surfacing Stellite

Sleeve valve plug : 1Cr18Ni9Ti OCr18Ni12M02Ti 1Cr18Ni9Ti surfacing alloy too much food company

Packing : PTFE , flexible graphite

Corrugated diaphragm : NBR clip reinforced polyester fabric

Spring : 60Si2Mn

Stem , putter : 2Cr13, 1Cr18Ni9Ti

Spool valve plug ( soft parts ) : PTFE

Bellows : 1Cr18Ni9Ti