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Current position£ºHOME  >  Product Center  >  regulating valve£¨API£©  >  ZMQ pneumatic membrane cuts off the valve
Product introduction:

 

The pneumatic membrane cuts off the valve Characteristic
. Have the bright card The pneumatic membrane cuts off the valve Adopt the executive body of many springs and regulate the organization and is linked to three posts, the whole height can reduce about 30% , weight can be lightenned by about 30%.
. The pneumatic membrane cuts off the valve Valve body design according to hydromechanical principle section low to is it is it flow line to hinder to flow, specified flow coefficient increase 30%.
. An sealed part has tight type and seal two kinds softly in the valve, tight type, in order to pile and weld the hard alloy, the soft sealed type is made for the soft material, seal of good performancly while closing .
. One, has improved in the balancing type valve Cut off the valve Xu use press difference.
. Corrugated pipe sealed type transform sealing complete into to valve stem that move , stop up possibility that the medium leaks definitely.
. Piston type executive body, operate strength big , use the difference of pressing to be great.
Part materials
Valve body, sealed collet: HT200, ZG230-450 ZG1Cr18Ni9Ti ZGOCr18Ni12M02Ti
The core of the valve, valve seat: 1Cr18Ni9Ti OCr18Ni12M02Ti 1Cr18Ni9Ti piles and welds the alloy of fields lying fallow in rotation very much of department
The collet , valve are filled in: 1Cr18Ni9Ti OCr18Ni12M02Ti 1Cr18Ni9Ti piles and welds the dish alloy very much of department
Packing : Polytetrafluoroethylene (PTFE) , soft graphite
Ripple diaphragm: The man inserts nitrile rubber to strengthen the dacron fabric
Spring: 60Si2Mn
Valve stem, push rod: 2Cr13 , 1Cr18Ni9Ti
The core of the valve , valve are filled in (soft one): Strengthen the polytetrafluoroethylene (PTFE)
Corrugated pipe : 1Cr18Ni9Ti
Technical parameter
Nominal open DN directly (mm) 15 20 25 32 40 50 65 80 100 125 150 200
Specified flow
Coefficient KV
Single seat , two-seater 5 7 11 20 30 48 75 120 190 300 480 760
Collet

11 20 30 48 75 120 190 300 480 760
Nominal pressure PN (MPa) 1.0 1.6 4.0 6.4
Specified journey (mm) 8 12 20 25 40 50
Effective area
(c m 2 )
ZMQ type 100 200 400 600 1000
ZSQ type 100 125 160 250
Allow to let out
Leaking amount
Seal hard 1/h -Like: 10- the specified capacity of 4 X valve; Tight type: Single , two-seater : 1.2X10- 7, collet 5X10- the specified capacity of 6 X valve
Seal softly VI Grade
Allow to press difference
(MPa)
ZMQ P N is acting on 6.4 5.09 2.91 1.85 2.18 1.33 1.52 0.99 0.62 0.60 0.69 0.39
ZMQ P N reaction 6.4 6.4 3.88 2.47 2.91 1.77 2.03 1.32 0.83 0.80 0.92 0.52
ZSQ P N 6.4 6.1 3.5 2.3 3.0 1.9 1.9 1.5 0.93 0.84 0.65 0.47
Z M S QM Nominal pressure
Signal pressure
(kPa)
ZMQ 0 or 250
ZSQ 0 or 400 - 600
1)This index of properties of product carries out GB/T4213-92;
2)Allow to pigeonhole difference and is greater than the nominal pressure and fetch nominal pressure value of the form, smaller than and equal to nominal pressure value not changing ;
3)The allowing value can mix and improve and allow to press difference with different air cylinders in order to use standard air cylinder value in the form.
Specification weight
Nominal and open directly 15 20 25 32 40 50 65 80 100 125 150 200
A §æ 196 §æ 232 §æ 308 §æ 394 §æ 498
L PN16, 40 130 150 160 180 200 230 290 310 350 400 480 600
PN64 210 230 230 260 260 300 340 380 430 500 550 650
H PN16, 40 305 340 345 370 380 390 475 490 500 765 825 927
PN64 320 350 354 372 382 397 473 475 517 805 882 815
Sealed type of the corrugated pipe 375 409 414 431 441 468 555 570 613 855 915 1017
H 1 PN16, 40 50 53 58 70 75 83 93 100 110 125 143 170
PN64 60 65 70 77.5 85 90 100 85 125 148 170 208
H 2 PN16 115 115 121 130 140 153 178 190 200 260 320 360
PN40 125 125 130 140 150 160 185 200 220 280 320 380
PN64 150 150 160 170 180 200 230 250 282 310 430 480
H 3 PN16, 40 404 415 428 448 468 561 578 590 886 1008 1120

PN64 365 430 498 528 528 530 535 540 600 890 1208 1305
Sealed type of the corrugated pipe 395 465 478 509 509 548 641 658 670 976 1098 1210
Weight
(kg)
Standard type 10 10 12 15 18 23 35 45 60 75 90 120
Sealed type of the corrugated pipe 12 12 14 17 20 26 38 48 64 79 95 125
Connect the standard
Connect size and standard
. Flange standard: Fran presses GB with casting iron 4216-84 Fran presses GB9113-88 , JB/T to cast steel 79-94
. The flange seals the surface pattern: PN10 , PN16 are protruding one; PN40 , PN64 are concave and convex faces, the valve body is the concave surface .
. The length of structure: GB12221-89.
. Angry signal interface of executive body: Interior whorl M10X1
. Valve body flange and distance of terminal surface of flange can be according to the standard manufacture which users appointed . For instance: Such standards as ANSI , JIS , DIN ,etc..
Order notice
Ask users to offer the following materials while ordering:
. Regulating valve name , type
. Nominal and open directly (mm)
. Nominal pressure (MPa)
. Specified flow coefficient (Kv)
. Medium name
. Working temperature and range
. Function way of the complete machine
. One and packing material in the valve body , valve
. Fittings