Instructions for use:
ZMQM pneumatic film sleeve shut-off valve adopts top guide structure with multi-spring actuator. It has the advantages of compact structure, light weight, sensitive action, S-streamlined fluid channel, small pressure drop loss, large valve capacity, and easy disassembly and assembly.
The shut-off valve receives signals from the regulating instrument to cut off, open or change the flow direction of the medium to achieve automatic control of process parameters such as pressure, flow rate, and liquid level. It is widely used in the automatic control and operation control system of the production process in various industrial sectors such as petroleum, chemical, metallurgy, electric power, light industry, and textile.
This series of products has four nominal pressure grades: PN10, 16, 40, 46, and the nominal diameter range is DN20~200mm. The applicable fluid temperature is -60~450°C. The leakage level is class IV or VI. The flow rate is fast opening.
Product features:
◇ The shut-off valve adopts a multi-spring actuator and the adjustment mechanism are connected by three verticals, which can reduce the overall height by about 30% and the weight by about 30%.
◇ The valve body is designed as an equal-section low-flow resistance channel according to the principle of hydrodynamics, and the number of rated flow systems is increased by 30%.
◇ There are two types of sealing parts of the valve trim, the tight type is hardfacing cemented carbide, and the soft sealing type is made of material material, and the sealing performance is excellent.
◇ Balanced valve trim improves the allowable pressure difference of the shut-off valve.
◇ The bellows sealing type forms a complete seal on the moving valve stem, blocking the possibility of media leakage.
◇ Piston actuator, large operating force, large pressure difference.
Main parts materials
Main parts materials
Valve body, sealing sleeve: HT200, ZG230-450, ZG1Cr18Ni9Ti, ZG1Cr18Ni12MO2Ti
Valve spool and seat: 1Cr18Ni9T, OCr18Ni12MO2Ti, 1Cr18Ni9Ti overlay Stellai alloy
Sleeve and valve plug: 1Cr18Ni9T, OCr18Ni12MO2Ti, 1Cr18Ni9Ti overlay stellar alloy
Filler: Teflon, flexible graphite
Corrugated diaphragm: Dingqing rubber clip reinforced polyester fabric
Spring: 60Si2Mn
Stem, actuator: 2Cr13, 1Cr18Ni9Ti
Valve spool, valve plug (soft parts): reinforced PTFE
Bellows: 1Cr18Ni9Ti
Technical parameters
1) The performance and indicators of this product comply with GB/T4213-92;
2) If the allowable pressure difference value in the table is greater than the nominal pressure, the nominal pressure value is taken, and if it is less than or equal to the nominal pressure value, it remains unchanged;
3) The allowable value of the table is the standard cylinder value, and different cylinders can be used to increase the allowable pressure difference.
Allowable pressure differential
Dimensional weight
Connection standard
Flange standard: cast iron flange according to BG4216-84
Cast iron flanges according to BG9113-88 and JB/T79-94
French semi-sealing surface type: PN10, PN16 are convex surfaces;
PN10 and PN16 are concave and convex surfaces, and valve bodies are concave.
Structure length: BG12221-98.
Actuator gas signal connection: female thread M10×1.
* The valve body method and flange end face distance can be manufactured according to the standard specified by the user. Such as: ANS, IJIS, DIN and other standards.