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ZJHM fine small pneumatic control valve sleeve

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ZJHM series pneumatic diaphragm control valve sleeve is a pressure balanced valve. Equipped with multi spring actuator, compact overall structure, star light, good stability. The fluid channel is the 3 line type, the pressure drop loss, allowing a large pressure difference, low noise, large flow capacity. Widely used for precise control of gases, liquids and other media technology parameters such as: pressure, temperature, flow, liquid level maintained at a given value. Especially applicable to the large flow rate, pressure, leakage requirements is not high.
This series of products are the standard and adjust the cut-off type, bellows seal type, jacket type insulation and other varieties. Product nominal pressure level of a user ~10, 16, 40, 64, valve caliber range by DN20~500, applicable for the fluid temperature from -196 ℃ ~+560 ℃, various grades of its range. The leakage of standard IV, V and VI. Flow characteristics such as linear or percentage. A variety of products, specifications are available.
Characteristic.
1 the balance valve structure, the axial unbalanced force is small, allowing a large pressure difference, stability. Sleeve good interchangeability, convenient assembly and disassembly, easy repair.
2 full metal valve structure is suitable for various occasions, to achieve the IV level leakage standard, soft sealing structure of valve to achieve the VI level leakage standard.
3 valve designed according to principles of fluid mechanics such as low flow resistance load into surface flow, large adjustable range, inherent adjustable ratio 50:1, rated flow coefficient of 30%.
4 implementing agencies for the use of multi spring structure, height reduction of 307%. To reduce the weight of 30%.
5.ZJHMW shaped bellows sealed valve, the stem form of mobile complete sealing, blocking the fluid leakage.

NameTexture of material
The valve body valve coverZG230-450、ZG0Cr18Ni9
Valve seat0Cr18Ni9, 0Cr18Ni9+PTFE, 0Cr18Ni9+ division Chatterley
FillerPTFE, flexible graphite
Bellows0Cr18Ni9
ShimGraphite spiral wound gasket (V6590), serrated gasket
Film coverA3、0Cr18Ni9
Corrugated diaphragmClip reinforced nylon fabric nitrile rubber
Spring60Si2Mn
Valve push rod0Cr18Ni9、2cr13

The main technical parameters of the sleeve valve

DN20253240506580100125150200250300350400


Seat diameter mm20253240506580100125150200250300350400


Rated kvLinear6.91117.627.544691101762754406301000160021562816


The percentage of6.31016254063100160250400690900144019602560


Nominal pressure（MPa） 1.6、2.5、4.0、6.4、10
Trip（mm）162540 60100130


The effective area of the film Ae（cm2）2803505609001400活塞式


Signal range KPa20-100、40-200、80-240
Gas pressure steam source MPa 0.1-0.4 0.4-0.7


The inherent flow characteristicsLinear, equal percentage, quick opening
The inherent adjustable ratio50:1
The leakage classHard seal, soft seal IV V; VI
Flange sizeAccording to JB/79. (2) _94, HG20592_97, GB, ANSI, JIB, DIN and other standards
Body materialWCB, 304, 316, WC6, nickel, titanium, Hastelloy, Monel etc.
Valve material304, 316, 420, nickel, titanium, Hastelloy, Monel etc.
Working temperature℃-40~+230 ℃ (room temperature), +230~+450 ℃, +450~+560 ℃ (Zhong Wen) (high temperature), -40~-196 ℃ (low temperature)
Series typeAt room temperature, medium temperature, low temperature type. Bellows seal type,jacket type heat, regulating off type

Main performance index

Serial numberProjectStandard type regulating valveHigh temperature, low temperature valve
Not with a locatorWith a locatorNot with a locatorWith a locator
1The basic error（%）±5±1±15 ±4
2The return difference<（%）31103
3The dead zone <（%）30.481
4Always point bias <（%）Open airThe starting point±2.5±1±6

±2.5

Finish±5±15
Air to closeThe starting point±5±15
Finish±2.5 ±6
5Rated stroke deviation<（%）±2.5+2.5+6+2.5

Note: This product performance accords with GB/T4213 - 2008

To allow pressure gas off type (positive effect) metal sealing type allows differential pressure gauge Company： MPa

The executive agency modelSpring range（KPa）Air pressure（KPa）Positioner（Take / no）Seat diameter dn(mm)
20253240506580100125150200
ZHA-2220-1000.14no1.271.06
Belt3.813.18
40-2000.25Belt5.404.50
80-2400.4Belt10.09.81
ZHA-2320-1000.14no 1.330.930.76
Belt 3.402.802.29
40-2000.25Belt 4.823.962.29
80-2400.4Belt 10.08.637.06
ZHA-3420-1000.14no 0.920.760.61
Belt 2.782.291.85
40-2000.25Belt 3.943.242.62
80-2400.4Belt 8.587.065.72
ZHA-4520-1000.14no 0.860.720.54
Belt 2.582.161.63
40-2000.25Belt 3.663.702.32
80-2400.4Belt 7.976.685.05

气关式（正作用）金属密封型允许压差表 Company： MPa

The executive agency model

Spring range（KPa）

Air pressure（KPa）

Positioner（带/否）

Seat diameter dn(mm)

20

25

32

40

50

65

80

100

125

150

200

ZHA-22

20-100

0.14

Take / no

1.27

1.06

40-200

0.25

Belt

3.81

3.18

80-240

0.28

Belt

10.0

8.48

ZHA-23

20-100

0.14

Take / no

1.33

0.93

0.76

40-200

0.25

Belt

3.40

2.80

2.29

80-240

0.28

Belt

9.08

7.46

6.11

ZHA-34

20-100

0.14

Take / no

0.92

0.76

0.61

40-200

0.25

Belt

2.78

2.29

1.85

80-240

0.28

Belt

7.40

6.11

4.94

ZHA-45

20-100

0.14

Take / no

0.86

0.72

0.54

40-200

0.25

Belt

2.58

2.16

1.63

80-240

0.28

Belt

6.89

5.78

4.37

气关式（正作用）金属密封型允许压差表 Company： MPa

The executive agency modelSpring range（KPa）Air pressure（KPa）Positioner（Take / no）Seat diameter dn(mm)
20253240506580100125150200
ZHA-2220-1000.14no1.981.66
Belt3.003.00
40-2000.25Belt3.003.00
80-2400.4Belt3.003.00
ZHA-2320-1000.14no 1.771.451.19
Belt 3.003.002.86
40-2000.25Belt 3.003.002.86
80-2400.4Belt 3.003.003.000
ZHA-3420-1000.14no 1.441.190.96
Belt 3.002.862.31
40-2000.25Belt 3.003.003.00
80-2400.4Belt 3.003.003.00
ZHA-4520-1000.14no 1.341.220.85
Belt 3.002.712.04
40-2000.25Belt 3.003.002.73
80-2400.4Belt 3.003.003.00

气关式（正作用）金属密封型允许压差表 Company： MPa

The executive agency modelSpring range（KPa）Air pressure（KPa）Positioner（Take / no） Seat diameter dn(mm)
20253240506580100125150200
ZHA-2220-1000.14Take / no1.981.65
40-2000.25Belt3.003.00
80-2400.28Belt3.003.00
ZHA-2320-1000.14Take / no 1.771.451.19
40-2000.25Belt 3.003.002.86
80-2400.28Belt 3.003.003.00
ZHA-3420-1000.14Take / no 1.441.190.95
40-2000.25Belt 3.002.862.31
80-2400.28Belt 3.003.003.00
ZHA-4520-1000.14Take / no 1.341.220.85
40-2000.25Belt 3.002.712.04
80-2400.28Belt 3.003.003.00

Note that allows differential pressure gauge:
Packing material for the PTFE
Flow direction and valve medium off in the opposite direction
Leakage in grade IV metal seal type
Number of the nominal pressure, pressure, temperature limits
Bellows seal type P2 ≠ 0 re check;

Dimensions and weight Company：mm

DN20253240506580100125150200250300
LPN16MPa187184200222254276298352410451600673737
PN16MPa194197210235267292317368425473600708775
PN16MPa206210220251286311337394440508650752819
A280360470580
H1PN16、4053586873809098108108140168225245
PN16、646368758388100105125125170203260280
H2Actuator280310395525725
H3High temperature heat sink type210210225230230335335345408454482550580
Bellows seal303305392395405529540553710756800900940
HStandard room temperature40042045045546061062264078087089012051235
Low temperature typeH3750900
H49090929292989898110120120180180
D310310335335335430465520585660770850850
Weight kgPN16/402022253238626783132160245350470
N64/10024253042527882102170190285500660
Low temperature type PN16/40404852606890105143210282315580800
Low temperature type PN64/1005060657585112131178262352393725980

Ordering instructions
When ordering, please fill in "specification" or indicate the following contents:
One, if the order has not selected models, please provide the parameters are used to send us your
1, nominal diameter, nominal flow in coefficient Kv
2, the fluid properties (including the nominal pressure, temperature, viscosity and pH value "
3, the valve action form (gas closed or gas - Open)
4, flow at
5, in front of the valve, the valve pressure
6, valve body, broad core material
7, the input signal
8, with the attachment, the attachment type, so that we can correct for your selection.
Two, special requirements
1, special inspection
2, complete degreasing, water treatment;
3, no copper processing;
4, special interface, piping;
5, the use of vacuum conditions;
6, specify the color of the coating
7, special medium (gas, chlorine, nitrogen)
8, the use of stainless steel connections;
Three, if the unit has been selected from the design of our products, please click models directly to our sales department order
Four, the occasion is very important when using or complicated pipelines, please make cocoons provide design drawings and detailed parameters, from our experts to your review gatekeeper.

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