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ZMAP (N) pneumatic thin film low temperature regulating valve

ZMAP (N) pneumatic thin film low temperature regulating valve
  • sell:021-32051999
  • sell:021-32050777
  • fax:021-66099555

Details

  • Product Introduction
  • Service Promise
  • Ordering Process

ZMAP Pneumatic Film Low Temperature Single Seat Regulating Valve/ZMAN Pneumatic Film Low Temperature Double Seat Regulating Valve is a deformation product of single seat and double seat regulating valve. It differs from normal temperature in that it uses long neck upper cover to make packing work at normal temperature. Pneumatic thin film cryogenic control valve is suitable for medium (such as liquid oxygen, liquid nitrogen, etc.) in low temperature and strong state of - 60 ~ - 250 C. In order to ensure the accuracy of adjustment, positioners must be used.


Structure principle of pneumatic low temperature regulating valve


The pneumatic low temperature control valve is composed of pneumatic membrane actuator and single-seat and double-seat control valves which can withstand low temperature.


The signal pressure from the regulator is fed into the air chamber of the pneumatic membrane actuator to generate thrust. The valve core is driven by connecting rods. The change of the valve core position makes the valve flow cross-sectional area change and realizes the adjustment of the medium flow rate.


Main technical parameters of pneumatic low temperature regulating valve


公称通径
DN
单座
20
25
32
40
50
65
80
100
125
150
200
双座
25
32
40
50
65
80
100
125
150
200
额定流量
单座
0.08
0.12
0.2
0.32
0.5
0.8
1.2
2
3.2
5
8
12
20
32
50
80
120
200
280
450
系数Kv
双座
10
6
25
40
63
100
160
250
400
630
流量特性
直线
直线;等百分比
配用执行机构型号
ZMA-2
ZMA-3
ZMA-4
ZMA-5
行程
10
10
16
25
40
60
作用方式
气关式(B),气开式(K)
弹簧压力范围KPa
标准信号:20~100;其它信号;40~200;20~60;60~100


Main dimensions of pneumatic low temperature regulating valves


公称通径DN(mm)
20
25
32
40
50
65
80
100
125
150
200
A
230
280
280
325
410
495
135
235
235
255
280
310
345
370
430
470
550
660
1
160
260
260
285
305
340
375
405
460
525
590
700
2
190
290
290
315
335
370
410
440
490
560
630
740
n-
6-12
8-14
8-14
8-14
8-16
10-16
10-18
12-18
16-18
20-18
单座
H
L
120
190
200
210
235
265
295
210
370
440
475
570
H1=500
862
1006
1060
1066
1137
1152
1377
1390
1394
H1=600
962
1106
1160
1166
1237
1252
1477
1490
1494
H1=700
1062
1206
1260
1266
1337
1352
1577
1590
1594
1743
1751
1790
H1=800
1162
1306
1360
1366
1437
1452
1677
1690
1694
1843
1851
1890
H1=900
1262
1406
1460
1466
1537
1552
1777
1790
1794
1943
1951
1990
H1=1000
1362
1506
1560
1566
1637
1652
1877
1890
1894
2043
2051
2090
H1=1100
2143
2150
2190
H1=1200
2243
2250
2290
H2
32
58
112
118
129
144
178
191
195
243
251
290
双座
H
L
200
210
235
265
295
320
370
440
475
570
H1=500
1065
1068
1147
1152
1387
1407
1419
H1=600
1165
1168
1247
1252
1487
1507
1519
H1=700
1265
1268
1347
1352
1587
1607
1619
1768
1778
1820
H1=800
1365
1368
1447
1452
1687
1607
1719
1868
1878
1920
H1=900
1465
1468
1547
1552
1787
1807
1819
1968
1978
2020
H1=1000
1565
1568
1647
1652
1887
1907
1919
2068
2078
2120
H1=1100
2168
2178
2220
H1=1200
2268
2278
2320
H2
117
120
139
144
188
208
208
268
278
320


Matters needing attention in pneumatic low temperature regulating valve


1. Should be installed vertically on the horizontal pipeline, in special cases need to be installed horizontally or inclined, generally should be supported. The garden plate installed on the wall of the incubator should be parallel to the heat preservation box wall.


2. Should be installed near the ground or floor, in order to maintain maintenance, positioner or handwheel mechanism, should ensure that the observation, adjustment and operation of convenience.


3. Generally, by-pass pipes are installed to switch to manual operation when the automatic control system fails or is repaired, so as not to stop production.


4. When the handwheel mechanism is installed, manual operation of bypass pipeline can be omitted, and the opening can be limited. When it stops using, the handwheel mechanism must return to the original neutral position to facilitate the normal operation of the automatic control system.


5, when installing, the flow direction of the medium should be consistent with the direction of the valve body.


6, before installation, pipe cleaning and welding slag should be cleaned. After installation, make full opening, piping and so on to clean and test the sealing ability of the joints.

The best quality, first-class service Qigao creates more value for you!

"Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". "Qigao" strictly followsIS09001-2000 Quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:

Product Standards:

Products in strict accordance with ChinaGB、HG Standard and USAPISuch as standard design, manufacturing, acceptance. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.

pre-sale service:

Product introduction, technical exchange, non-standard product design, troubleshooting。

Sale service:

A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service:

1、"Qigao" brand product quality period is from the factory12In the month, the implementation of the "three guarantees" service (return, replacement, warranty).

2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions, so as to further improve product quality.

3、Respond quickly to the quality of user complaints, after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).

4、For after-sales service, users are required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.

1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:

a、Structure length;

b、Connection Type;

c、Nominal diameter, full diameter, reduced diameter, pipe size;

d、Operating medium and temperature, pressure range;

e、Tests, inspection standards and other requirements

2、The factory can configure various types of driving devices according to customer's specific requirements.。

3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

4、For futures and order customers, please call us in advance to tell the required valve model, specification, quantity, delivery time and location, and timely transfer to the factory account according to the total 30% deposit or full payment. The rest of the payment is pending. Import before shipment to arrange delivery in time.

 

Order Process:

1、Customer purchase list fax to021-33872143,Or call us 021-33872141

2、Receive customer purchase list, provide valve model selection and quotation (price list)。

3、Specific agreement: delivery date, special requirements, etc.。

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1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:

a、Structure length;

b、Connection Type;

c、Nominal diameter, full diameter, reduced diameter, pipe size;

d、Operating medium and temperature, pressure range;

e、Tests, inspection standards and other requirements

2、The factory can configure various types of driving devices according to customer's specific requirements.。

3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

4、For futures and order customers, please call us first to tell the required valve model, specifications, quantity, delivery time and location, and press the total30%The deposit or full payment will be remitted to our factory account in time., The rest of the payment will be remitted before shipment to arrange delivery in time.。

Sale service:

Trustworthy contract, guarantee timely delivery, keep in touch with customers at any time。

For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service:

1、"Qigao" product quality period is from the factory12Month, practiceThree packsService (return, replacement, warranty)。

2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions.,
In order to further improve product quality。

3、Respond quickly to the quality of user complaints, after-sales service personnel24-36Hours (outside the province48Hour) rushed to the scene。

4、For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of “Qigao”.。

statement

  1. All text, data and pictures in this article are for reference only.ZMAP (N) pneumatic thin film low temperature regulating valvePlease contact us at 4000-700-665 for details of performance, size and price.
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