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Pneumatic Control Valve

Pneumatic Control Valve

ZXP/ZDLP/ZAZP series pneumatic/motorized single seat control valve structure is top guiding.The advantage as below: 1.Compact structure 2.Small volume 3.Lighter 4.Sensitive action 5.S type Flow channel, low pressure drop loss, large circulation capacity,flow characteristic precise,easy...

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Product Details

  Pneumatic pressure control valve is the most important actuator product in. production process control system. This series product ZXP/ZDLP/ZAZP type pneumatic small type single-seat control valve and ZJHM type pneumatic small sleeve valve is one of the universal product available for users to choose, it is suitable for various fluid media and process conditions of the process control system.
 
With our design, our Pneumatic pressure control valve's height and weight are only 70% of other countries same function control valve. And the flow coefficient Kv value increased by 30%, so save both in material and in energy, is a new improved products.   

 ZJHP type pneumatic single-seat control valve is consist of ZHA (B) pneumatic Multiple-springs diaphragm mechanism actuator and low flow resistance Straight-through single-seat valve. 
ZJHM type pneumatic sleeve control valve is consist of ZHA (B) pneumatic Multiple-springs diaphragm mechanism actuator and low flow resistance Straight-through sleeve valve.
The outer pneumatic pressure signal transmit into membrane chamber, the pressure acts on the diaphragm and produce thrust, this force compress onto springs and makes a putter move and drive the valve stem which lead valve core ON or OFF, until the thrust and spring set force get balance and stable on a position. Above all, the valve core displacement is in proportion to the input pressure signal, so also called as pressure control valves.
Classify Pneumatic spring diaphragm actuator according to action mode, can be divided into positive action and reaction action two kinds. When the signal pressure increase, the push rod move out the membrane chamber, is positive action model ZHA; when signal pressure increase, the push rod back into the membrane chamber, is reaction type, model is ZHB.
Classify the pneumatic control valve with switch mode, have air-to-close type and air-to-open two types. Air-to-close type is made of positive action actuator and valve. When the input signal pressure change from low limit to high limit, valve move from full open to full closed. Air-to-open valve is made of reverse action actuator and valve. When the input signal pressure change from low limit to high limit, valve move from full closed to full open.

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Normal material sheet

No

Component

Common Material

1

Valve Body

WCB

WC6

CF8

CF8M

2

Valve Seat

304、316/Stellite

316/Stellite

3

Metal Seal

304、316/Stellite

316/Stellite

4

Valve Plug

Soft seal

304、316+F4

316+F4

Guide pad

CF8、CF8M+QA19-4

5

Metal Spiral Wound Gasket

304、316+Soft Graphite

6

Valve rod

304、316

316

7

Stud

35、304

8

Nut

45、304

9

Gasket

Q235B、304

10

Bonnet

WCB

WC6

CF8

CF8M

11

Packing Spring

304、316

12

Stuffing

PTFE、Soft Graphite

13

Packing Spacer

304

14

Packing Gland

304


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

Reaction

PZMB-4

PZMB-5

PZMB-6

PZMB-7

Rated Stroke L(mm)

16

25

40

60

Diaphragm Effective Area

280

400

600

1000

Nominal Pressure PN(MPA)

1.6  2.5  4.0  6.3  10.0

Inherent flow Characteristics

Equal percentage、Liner

Inherent rangeability

50:01:00

The range of air source signals

20~100、40~200、80~240

Gas source pressure(Mpa)

0.14、0.25、0.28、0.4

Electric actuator

Depand on the thrust and stroke which valve need

Power voltage

220V.AC 50Hz 380V.AC 50Hz( Three phase)

Leakage class

Soft seal

VI Class、Zero Leakage

Metal seal

IV Class、V Class

Flange connection form

PN1.6Mpa, Convexity of valve body  PN≥4.0Mpa,Concavity of valve boday

Upper bonnet form

Cooling type

Case Steel:-29~425°C、Cast Stainless steel:-60~450°C


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


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Packing Details: Wooden box and plywood case, standard export  packing.
In addition that we can  design and pack as your request.
Delivery Details : Shipped in 5-15 days after payment.

 

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Q: What's your payment terms?

A: Usually we accept T/T ,Western Union or PayPal.


Q: What's your shipping item?

A: We ship items via EMS, DHL, UPS, TNT, China Post or Hong Kong Post.


Q: What's your delivery time?

A. 1.The stock samples can be sent to you within 3-5days by international express after received

   2.The batch order can be shipped to you in about 10-15days after order confirmation (by air or by sea)


Q: What's your main products of your company?

A: We specialized in all kinds of high performance control valve, for over 10 years with excellent quality and competitive


Q:How can I choose the most suitable valve?

A: Please tell me your detailed working condition,DN,Mpa,Working temperature…ect


Q: How long is your pump lifetime?

A: Valve warranty is 12 months 


Guarangee:

1. We offer 12 months limited Warranty of Manufacturer for defective items (excluding items damaged and /or misused after receipt).

2. If you have any problems with the item received, please let us know within 7 days after received. Please contact us before send items back! If problem really exists, a replacement or a refund is available after we receive the items in goods condition.


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Mail address:Infor@hoyeevalve.com
Website:www.hoyeevalve.com
 


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