Electric Control Valve
Pneumatic Control Valve Single Seat
Pneumatic control valve single seat
Pneumatic control valve Use and characteristics
1 applications and characteristics of pneumatic control valve structure of a right angle turn, it is supporting the use of valve positioner, the ratio can be adjusted; type V valve adjustment for a variety of occasions, with a rated flow coefficient, adjustable ratio, good sealing effect, regulating the performance of sensitive, small volume, vertical horizontal installation. Applicable to control of gas, steam, liquids and other media.
2 Pneumatic control valve characteristic: the structure of a right angle turn, by the V type valve, pneumatic actuator, positioner and other accessories; there is a nearly 100 than the inherent flow characteristics; dual bearing structure, the starting torque is small, with excellent sensitivity and speed sensors; shear capacity of strong.
3 pneumatic piston executing agency for the use of compressed air power source, through the piston's movement led to a 90 degree turn, to enable the automatic gate valve. Its components are: adjustment bolt, the executive body box, crankshaft, cylinder block, cylinder, piston, connecting rod shaft, cardan shaft.
4 the working principle of pneumatic control valves: pneumatic control valve by the implementing agencies and regulatory agencies. Executing agency is the thrust control valve components, which according to the control signal pressure to produce the thrust, push the adjustment mechanism of action. Valve is a pneumatic control valve adjustment parts, it has a direct contact with the media regulator, regulating the flow of the fluid.
Main technical specification
|
Nominal Diameter(mm) |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
|
|
Rated flow coefficient Kv |
Equal percentage |
3 |
6 |
10 |
16 |
25 |
40 |
63 |
100 |
160 |
250 |
400 |
630 |
|
Liner |
4 |
7 |
11 |
18 |
28 |
44 |
69 |
110 |
176 |
275 |
440 |
690 |
|
|
Actuator Model |
Direct action |
PZMA-4 |
PZMA-5 |
PZMA-6 |
PZMA-7 |
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Reaction |
PZMB-4 |
PZMB-5 |
PZMB-6 |
PZMB-7 |
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|
Rated Stroke L(mm) |
16 |
25 |
40 |
60 |
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|
Diaphragm Effective Area |
280 |
400 |
600 |
1000 |
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Nominal Pressure PN(MPA) |
1.6 2.5 4.0 6.3 10.0 |
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Inherent flow Characteristics |
Equal percentage、Liner |
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Inherent rangeability |
50:01:00 |
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The range of air source signals |
20~100、40~200、80~240 |
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Gas source pressure(Mpa) |
0.14、0.25、0.28、0.4 |
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Electric actuator |
Depand on the thrust and stroke which valve need |
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Power voltage |
220V.AC 50Hz 380V.AC 50Hz( Three phase) |
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Leakage class |
Soft seal |
VI Class、Zero Leakage |
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Metal seal |
IV Class、V Class |
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|
Flange connection form |
PN1.6Mpa, Convexity of valve body PN≥4.0Mpa,Concavity of valve boday |
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|
Upper bonnet form |
Standard type |
Case Steel:-20~220°C、Cast Stainless steel:-40~220°C |
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Cooling type |
Case Steel:-29~425°C、Cast Stainless steel:-60~450°C |
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Cryogenic |
Cast Stainless steel:-60~-100°C、-100~-196°C |
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Main Performance Index
|
No |
Item |
Standard Type |
Cooling、cryogenic type |
|
1 |
Intrinsic Error＜（%） |
±1 |
±3 |
|
2 |
Return difference＜（%） |
1 |
3 |
|
3 |
Dead band＜（%） |
0.4 |
1 |
|
4 |
Origin-destination deviation＜（%） |
±1 |
±2.5 |
|
5 |
Rated stroke deviation＜（%） |
+2.5 |
+2.5 |
FAQ
What are your prices?
Our prices are subject to change depending on supply and other market factors. We will send you an updated price list after your company contact us for further information.
Do you have a minimum order quantity?
Yes, we require all international orders to have an ongoing minimum order quantity. If you are looking to resell but in much smaller quantities, we recommend you check out our website
Can you supply the relevant documentation?
Yes, we can provide most documentation including Certificates of Analysis / Conformance; Insurance; Origin, and other export documents where required.
What is the average lead time?
For samples, the lead time is about 7 days. For mass production, the lead time is 20-30 days after receiving the deposit payment. The lead times become effective when (1) we have received your deposit, and (2) we have your final approval for your products. If our lead times do not work with your deadline, please go over your requirements with your sale. In all cases we will try to accommodate your needs. In most cases we are able to do so.
What kinds of payment methods do you accept?
You can make the payment to our bank account, Western Union,LianlianPay or PayPal:
30% deposit in advance, 70% balance against the copy of B/L.
What is the product warranty?
We warranty our materials and workmanship. Our commitment is to your satisfaction with our products. In warranty or not, it is the culture of our company to address and resolve all customer issues to everyone’s satisfaction
Do you guarantee safe and secure delivery of products?
Yes, we always use high quality export packaging. We also use specialized hazard packing for dangerous goods and validated cold storage shippers for temperature sensitive items. Specialist packaging and non-standard packing requirements may incur an additional charge.
How about the shipping fees?
The shipping cost depends on the way you choose to get the goods. Express is normally the most quickest but also most expensive way. By seafreight is the best solution for big amounts. Exactly freight rates we can only give you if we know the details of amount, weight and way. Please contact us for further information.
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