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KC8107Q pneumatic diaphragm low temperature control valve

KC8107Q pneumatic diaphragm low temperature control valve

Summary: KC8104Q pneumatic diaphragm sleeve control valve is a common improved product.In addition to the common sleeve valve has good stabillity,versatillity,easy maintenance and other advantages.It also hai the advantages of small volume,light weight and large flow coefficient.

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Products Details

KC8107Q pneumatic diaphragm low temperature control valve

The single seal type is suitable for the medium with strict leakage requirement and small pressure difference. The double seal type is suitable for medium occasions with loose leakage requirements and large pressure difference.

Main technical performance index:

Leakage rate: hard seal grade IV, less than 10 "return difference of rated flow; without positioning seat, less than 3% of full stroke; Basic error: without positioner, less than + - 5% of full stroke; Deadband: without positioner, less than 3% of full stroke.

Main performance index:

Leakage rate: the single seat valve and small flow valve are less than 10-4 of the rated capacity of the valve, and the double seat valve is less than 5 of the rated capacity of the valve × 10-3.

Backlash: with positioner, less than 3% of full stroke.

Basic error: with positioner, less than + - 3.

Note: Standard V-type PTFE packing is used.

Main technical parameters

Nominal diameter (mm)
20 25 32 40 50 65 80 100 125 150 200
Valve seat diameter (mm)
3 4 5 6 7 8 9 10 12 15 20 26 32 40 50 66 80 100 125 150 500
Discharge coefficient kV
Small flow valve
0.3 0.5 0.8 1 - - - - - - - - - - - - -
Single seat valve
- - - - - - - 1.2 2 3.2 5 8 13 22 32 50 80 120 200 280 450
Double seat valve
- - - - - - - - - - - 10 16 25 40 72 100 160 250 400 630
Rated stroke (mm)
10 16 25 40 60
Adjustable range
Nominal pressure
Standard products 1.6, 4.0, 6.4Mpa
Valve core form
Single seat and double seat valves are straight through casting spherical valves, and small flow valves are straight through forging
Flow characteristics
Equal percentage, straight line, quick opening
Form of action
Air to open and air to close
Working temperature
Flange standard
It conforms to JB78-59 and JB79-59 standards; According to JB/T79.1-94, JB/T79.2-94, HG20592-2009, ANSI, JIS, DIN and other standards
ZM pneumatic diaphragm actuator/ZH small pneumatic diaphragm actuator
Accessories available
Positioner, solenoid valve, air filter pressure reducing valve, limit switch, valve position feedback device, emergency action device, hand wheel mechanism, etc

Medium temperature range:

Operating temperature range(℃)/ Nozzle coordinate size (mm)/ Nominal diameter
D1 D2 D3
500 700 900
600 800 1000
700 900 1100
Note: if the working temperature, nominal diameter and nominal pressure exceed the listed range, we can negotiate with our company.

Material of main parts:

Part name
Core seat and packing
Texture of material
Cast stainless steel (ZG1Cr18Ni9Ti, ZGOCr18Ni12MO2Ti), etc
V-type polytetrafluoroethylene

Flange distance and overall dimension:

Nominal diameter
PN1.6 PN4.0 PN6.4 Air to open
Air to close
Small flow valve, single seat valve
Double seat valve

80 412 365 19 - 230 135 160 190 -
20 180 180 190 492 445 74 - 280 235 260 290 8-14
25 185 190 200 440 99 104 235 260 290 8-14
32 200 210 210 443 105 107 255 285 315 8-14
40 220 230 235 489 117 127 325 280 205 355 8-16
50 250 255 265 499 132 132 310 340 370 8-16
65 275 285 295 641 165 175 410
345 375 410 10-16
80 300 310 320 644 168 185 370 405 440 10-18
100 350 355 370 653 177 202 430 460 490 12-18
125 410 425 440 784 225 250 495
470 525 560 16-18
150 450 460 475 782 233 260 550 590 630 16-18
200 550 560 570 779 272 302 660 700 740 20-18

Product structure diagram:

Packing & Delivery : 

Packing Details:all by seaworthy plywood case and packed strongly by packing belt as below
Delivery Details:Generally it is 5-10 days if the goods are in stock. or15-30 days if the goods are OEM or not
enough subject to the order quantity. But anyway, normally, we are able to make sure the delivery will not exceed 45days.

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