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 |
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.:
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2、The factory can configure various types of driving devices according to customer's specific requirements.。
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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.
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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.。
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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, practice“Three packs”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.,
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”.。
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