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Home > products > Industrial Valves > Low Flow Resistance Compact Pneumatic Diaphragm Valve Industrial Valves

Low Flow Resistance Compact Pneumatic Diaphragm Valve Industrial Valves

Product Details

Place of Origin: China

Brand Name: WEYO

Model Number: ZJHT

Payment & Shipping Terms

Minimum Order Quantity: Negotiable

Price: Based on oroiect reauirements

Packaging Details: Customized packaging to protect products

Delivery Time: 7 - 15 days for small orders, 15 - 30 days for large orders

Payment Terms: L/C, T/T

Supply Ability: 5000 units per month for small parts. 1000 units per month for large parts

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Low Flow Resistance industrial valves

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Compact industrial valves

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explosion proof pneumatic diaphragm valve

Low Flow Resistance Compact Pneumatic Diaphragm Valve Industrial Valves
ZJHT type light and compact pneumatic diaphragm control valve is an upgraded product of ZM A/B/T type.

 

It consists of a multi-spring zero-adjustable actuator and a diaphragm control valve. Compared with the ordinary type, it is smaller in size and lighter in weight, with low flow resistance, no stuffing box, no external leakage, and features anti-toxic, fire-proof, explosion-proof properties, ensuring safety and reliability. Different linings and diaphragms can be selected according to different media to achieve excellent shut-off and corrosion resistance performance. It has a wide range of corrosion resistance, and is cost-effective. It is suitable for the regulation and control of strong corrosive media such as strong acids and alkalis, as well as high-viscosity media with fibers, toxic and harmful media.
 
Main technical parameters and performance indicators

Nominal diameter

DNmm
15 20 25 32 40 50 65 80 100 125 150 200
Rated flow coefficient Kv 8 12 16 38 60 68 90 160 300 500 600 1200

Nominal pressure

MPa
1

Actuator

Model

ZH A
B
-22 ZH A
B
-23 ZH A
B
-34 ZH A
B
-45

Effective area

cm2
280 400 630 1000

Stroke

mm
10 16 25 40 60

Spring range

KPa
20~100,40~200,20~60,60~100,80~240

Flow characteristic

Approximately quick-opening

Flange standard

JB/T79.1-94

 

Performance indicators

Item

Without positioner

With positioner

Item

Without positioner With positioner

Basic error %

±8.0 ±2.0

Deviation at start and end points %

   

Hysteresis %

6 2

Air-closed

Start point ±1.5, end point ±6

±2.5

Dead band %

5 1.8

Air-opened

Start point ±6, end point ±1.5

 

Rated stroke deviation %

±6 ±1.5

Allowable leakage L/H

Rubber diaphragm,0.01%Kv,F46,0.5%Kv

 

Materials of main components and applicable temperature ranges

Valve body material

Lining material

Diaphragm material

Operating temperature (℃)

Applicable occasion

HT200 None

Chloroprene rubber

0~65

Non-corrosive occasions.

Abrasives, mud.

HT200 F46

Fluororubber

-20~+180

Strong acids, strong alkalis, strong oxidants, general organic solvents.

Not suitable for mud-like media.

HT200 F46 F46 -20~200

Better corrosion resistance than the above.

ZG1Cr18Ni9Ti None Fluororubber -20~+180

General media such as acids, alkalis, and organic solvents.

Note: The valve body can be made of other corrosion-resistant materials, and the diaphragm material is made of special fluororubber, with a pressure up to PN16 and PN25.

 

Nominal diameter

DN(mm)

Overall dimensions

D H H1 L
15 285 451 48 140
20 456 53 145
25 460 58 155
32 285 482 68 165
40 524 73 190
50 458 80 210
65 360 620 90 240
80 670 98 270
100 782 108 335
125 470 803 123 375
150 857 140 410
200 980 168 540

 

 

Codes for valve body material, lining and diaphragm

Matrix and lining

HT200 ZG1Cr18Ni9Ti

Diaphragm

None

F46

Lined with chlorotrifluoroethylene

Chloroprene rubber

Fluororubber

F46

Code

1 3 2 4 1 3 2

 

Optional Accessories
Positioner, air filter pressure regulator
ZPXS side-mounted light and compact handwheel mechanism
ZDS top-mounted light and compact handwheel mechanism