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Pneumatic thin film high-temperature resistant regulating valve
Pneumatic thin film high-temperature resistant regulating valve
Product details
ZJHPG pneumatic high-temperature regulating valve, operated by a multi spring pneumatic diaphragm actuator(Or piston type pneumatic actuator)Composed of a low flow resistance regulating valve body, the multi spring actuator has low height, light weight, and easy equipment. The flow channel of the pneumatic thin film high-temperature regulating valve body isSStreamlined, it has the advantages of compact structure, light weight, sensitive action, low pressure drop loss, large valve capacity, precise flow characteristics, and easy maintenance. The regulating mechanism of the pneumatic high-temperature regulating valve adopts a balanced valve plug structure, which has good valve stability, low vibration, low noise, and low sensitivity to temperature. Pneumatic thin film high-temperature regulating valve is particularly suitable for occasions with low leakage requirements and high temperatures.
1、 Overview of ZJHPG Pneumatic High Temperature Control Valve
Pneumatic high-temperature control valve is composed of a pneumatic thin film actuator and a cast steel high-temperature control valve body. The high-temperature control valve body can be a high-temperature single seat control valve body, a high-temperature sleeve control valve body, a cage type high-temperature control valve body, or a high-temperature three-way control valve body. Pneumatic high-temperature control valves are generally used in high-temperature steam and high-temperature heat-conducting oil products. Pneumatic single seat control valve configurationHEPpositionerperhapsYT-1000LpositionerAccording to user needs, imported locators such as Siemens locators and Shanwu locators can be equipped. The input signal for the valve positioner is4-20mA, optional output signal can be selected4-20mA.
Pneumatic high-temperature regulating valves are widely used to precisely control process parameters such as pressure, flow rate, temperature, liquid level, etc. of high-temperature steam, high-temperature thermal oil and other media to maintain them at given values.
II Technical parameters of ZJHPG pneumatic high-temperature regulating valve
|
Nominal Diameter(DN) |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
|
|
Valve 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 |
6.3 |
10 |
16 |
25 |
40 |
63 |
100 |
155 |
250 |
370 |
580 |
900 |
1300 |
|
|
Allowable pressure difference(MPa) |
Single seat |
3.8 |
3.2 |
3.0 |
2.0 |
1.8 |
1.5 |
1.4 |
1.0 |
0,7 |
0.6 |
0.5 |
0.3 |
0.1 |
|
sleeve |
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 |
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|
rated travel(mm) |
16 |
25 |
40 |
60 |
100 |
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|
Model of actuator |
ZHA/B-22 |
ZHA/B-23 |
ZHA/B-34 |
ZHA/B-45 |
ZHA/B-56 |
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|
Traffic characteristics |
Equal percentage, straight line type |
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|
Cover form |
Bolt compression type |
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|
Packing |
VType PTFE packingVFlexible graphite packing material |
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|
Valve core form |
Single seat and sleeve type |
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|
Valve cover form |
High temperature type(+250～+450℃) |
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IIIZJHPGPneumatic high-temperature regulating valveComparison of different types of structural diagrams
4、 ZJHPG Pneumatic High Temperature Control Valve Pneumatic Thin Film actuator with Positioner
|
|
|
Pneumatic thin film actuator assemblyYT-1000Lpositioner |
5、 Technical parameters of ZJHPG pneumatic high-temperature regulating valve and pneumatic thin film actuator
|
Configure actuator category |
ZHA/BMulti spring membrane actuator |
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|
Model of actuator |
ZHA/B-22 |
ZHA/B-23 |
ZHA/B-34 |
ZHA/B-45 |
ZHA/B-56 |
|
Effective area(cm2) |
350 |
350 |
560 |
900 |
1400 |
|
trip(mm) |
10、16 |
24 |
40 |
40、60 |
100 |
|
Spring range(KPa) |
20～100(Standard)20-60、60-100、40-200、80-240 |
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|
Membrane material |
Nitrile rubber with nylon cloth, ethylene propylene rubber with nylon cloth |
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|
air supply pressure |
140～400KPa |
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|
air connection |
RC1/4' |
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|
ambient temperature |
-30～+70℃ |
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|
Can be equipped with accessories |
Positioner, air filter pressure reducer, holding valve, travel switch, valve position transmitter, handwheel mechanism, etc |
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|
Action form |
air-to-close(B)- Valve position open during gas loss(FO)Air opening type(K)- Valve position closed when gas loss occurs(FC) |
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6、 Installation dimensions of ZJHPG pneumatic high temperature regulating valve
|
Nominal DiameterDN(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 |
|
8、 ZJHPG Pneumatic High Temperature Control Valve Ordering Notice
1. Nominal diameter
2.nominal pressure
3.Connection method
4.actuator
5.action
6.Process medium and state
7.Pre valve pressure, post valve pressure
8.Large, normal, and small traffic
9.Usage temperature
10.Accessories (electrical valve positioner, filter pressure reducer, solenoid valve, holding valve, valve position switch, handwheel)
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