Pneumatic Actuator With Air Service Unit High Temperature Control Valve
Product Introduction
The ZJHPG pneumatic high temperature control valve is composed of a multi-spring pneumatic diaphragm actuator (or piston pneumatic actuator) and a low flow resistance valve body. The multi-spring actuator has low height, light weight and simple equipment. Pneumatic high temperature control valve is S streamlined flow path, with compact structure, light weight, sensitive action, small pressure drop loss, large valve capacity, accurate flow characteristics, convenient maintenance, etc. The pneumatic high temperature control valve adopts balance type, the valve plug has good structure, hard to vibrate, low noise, and low sensitivity to temperature. Pneumatic high temperature control valve is especially suitable for occasions where high temperature.
Technical Parameters
| Body type |
Straight type casting body |
| Nominal diameter |
DN20~300mm |
| Nominal pressure |
PN 1.6, 2.5, 4.0, 6.4, 10.0 MPa |
| Flange standard |
GB/T9113, JB/T79, HG20594 |
| Connection type |
Flange(FF, RF, RTJ), Welding(SW, BW), Screw(suitable in 1") |
| Bonnet type |
High temperature type +250~+450ºC, Ultra high temperature type+250~+560ºC |
| Gland type |
Bolted compression type |
| Packing |
V type PTFE, containing impregnated PTFE asbestos, asbestos textile, graphite |
| Main parameter |
Power supply voltage: 220V/50Hz, input signal: 4-20mA or 1-5V·DC, output signal: 4-20mA·DC
Protection grade: IP55, flameproof mark: EXDIIBT4, hand function: handle
Ambient temperature: -25 ~ +70ºC, ambient humidity: ≤95% |
Base Material
| Body material |
Cast steel (WCB), stainless steel (CF8, CF8M, CF3, CF3M), chromium-molybdenum steel |
| Disc type |
Single seat, sleeve, cage type |
| Flow character |
Linear, equal percentage |
| Disc material |
Stainless steel(304, 304L, 316, 316L) |
Feature
1. Corrosion resistance. Almost able to withstand the corrosion of all media (including concentrated nitric acid and aqua regia).
2. Good sealing performance. Double sealing with bellows and packing to ensure no leakage.
3. The leakage is small. Because the valve core and valve seat adopt soft sealing, it is ensured that there is no leakage.
4. Equipped with HA actuator, with large output force and compact structure.
Actuator
| Actuator |
ZHA/B Multi-spring diaphragm actuator |
| Model |
ZHA/B-22 |
ZHA/B-23 |
ZHA/B-34 |
ZHA/B-45 |
ZHA/B-56 |
| Effective area(cm2) |
350 |
350 |
560 |
900 |
1400 |
| Stroke(mm) |
10,16 |
24 |
40 |
40,60 |
100 |
| Spring range(KPa) |
20~10, 20-60, 60-100, 40-200, 80-240 |
| Diaphragm material |
Nitrile rubber and nylon cloth, ethylene propylene rubber and nylon cloth |
| Air supply |
140~400KPa |
| Air connetction |
RC1/4" |
| Ambient temperature |
-30~+70ºC |
| Accessories |
Positioner, air filter pressure reducer, position valve, travel switch, valve position transmitter, handwheel mechanism, etc. |
| Acting |
Air close(B)-fail to close(FO), air open(K)-fail to close(FC) |
Technical parameters and performance
| Nominal diameter(DN) |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
| Seat diameter(dn) |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
| Rated flow coefficient(KV) |
Single seat |
6.9 |
11 |
17.6 |
27.5 |
44 |
69 |
110 |
176 |
275 |
440 |
630 |
875 |
1250 |
| Sleeve seat |
6.3 |
10 |
16 |
25 |
40 |
63 |
100 |
155 |
250 |
370 |
580 |
900 |
1300 |
| Allowable pressure difference(MPa) |
Single seat |
3.8 |
3.2 |
3 |
2 |
1.8 |
1.5 |
1.4 |
1 |
0,7 |
0.6 |
0.5 |
0.3 |
0.1 |
| Sleeve seat |
6.4 |
6.4 |
5.2 |
5.2 |
4.6 |
4.6 |
3.7 |
3.7 |
3.5 |
3.1 |
3.1 |
2.6 |
2.2 |
| Nominal pressure(MPa) |
1.6,2.5,4.0,6.4,10.0 |
| Rated stroke(mm) |
16 |
25 |
40 |
60 |
100 |
| Actuator Model |
ZHA/B-22 |
ZHA/B-23 |
ZHA/B-34 |
ZHA/B-45 |
ZHA/B-56 |
| Flow character |
Equal percentage, linear |
| Bonnet type |
Bolt compression |
| Seal packing |
V-shaped PTFE, V-shaped flexible graphite |
| Trim type |
Single seat type, sleeve type |
| Bonnet |
High temperature type(+250~+450ºC) |
Details and dimensions and weight
normal type high temerature type
| DN(mm) |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
| L |
PN16/25 |
181 |
184 |
200 |
222 |
254 |
276 |
298 |
352 |
410 |
451 |
550 |
640 |
880 |
| PN40 |
194 |
197 |
200 |
235 |
267 |
292 |
317 |
368 |
425 |
473 |
640 |
760 |
910 |
| PN64 |
206 |
200 |
210 |
251 |
286 |
311 |
337 |
394 |
440 |
508 |
670 |
810 |
950 |
| H |
PN16/25 |
52.5 |
57.5 |
75 |
75 |
85.5 |
92.5 |
100 |
110 |
142.5 |
158 |
170 |
195 |
230 |
| PN40 |
52.5 |
57.5 |
75 |
75 |
82.5 |
92.5 |
100 |
117.5 |
150 |
167.5 |
187.5 |
205 |
245 |
| PN64 |
65 |
40 |
85 |
85 |
90 |
102.5 |
107.5 |
125 |
172.5 |
195 |
207.5 |
230 |
260 |
| H1 |
370 |
396 |
428 |
428 |
436 |
415 |
464 |
507 |
690 |
840 |
632 |
725 |
882 |
| H2 |
298 |
298 |
298 |
298 |
298 |
380 |
380 |
380 |
510 |
510 |
510 |
650 |
650 |
| H3 |
180 |
180 |
180 |
180 |
180 |
236 |
236 |
236 |
310 |
310 |
310 |
380 |
380 |
| L1 |
280 |
280 |
280 |
280 |
280 |
350 |
350 |
350 |
475 |
475 |
475 |
560 |
560 |
| A |
282 |
282 |
282 |
282 |
282 |
360 |
360 |
360 |
470 |
470 |
470 |
580 |
580 |
| C |
220 |
220 |
220 |
220 |
220 |
270 |
270 |
270 |
320 |
320 |
320 |
400 |
400 |
Connection dimensions and standards
Flange standard: Cast iron is GB4216-86 Cast steel is GB9113-88, JB/T79-94
Flange seal standard: PN10, PN16 is RF, PN40,PN64 is FM, the body is M
Structural length standard: GB12221-89
Connection of actuator air signal: Internal thread M10×1
The flange and distance of flange end face can be manufactured according to the standard specified by the user. Such as ANSI, JIS, DIN standard.
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Company development
Certifications
Company Show
FAQ:
1. Are you trading company or factory?
We are factory in Yongjia, Wenzhou, China.
2. Are the prodcuts certified?
Yes, ISO, FDA, SIL 2, CE, LFGB and so on.
3. Delivery time?
7-15 working days usually, but it will be longer when peak season.
4. MOQ?
One set.
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