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ZSJM Pneumatic Piston Control Valve
ZSJM Pneumatic Piston Control Valve
ZSJM Pneumatic Piston Control Valve
ZSJM Pneumatic Piston Control Valve

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Product details

Characteristics and Applications

The ZSJM type precision small pneumatic piston sleeve regulating valve is composed of a ZSA (B) - P type spring piston adjustable zero actuator and a precision small sleeve valve component, with a lighter and smaller structure than ZJHP and ZJHM. The thrust is greater, but the sensitivity is slightly lower. The valve core adopts a balanced structure, with a large allowable pressure difference, good vibration resistance, low noise, and good stability. It is easy to install and disassemble, and different spring ranges can be selected to obtain the required allowable pressure difference.
Applied to automatic control systems in industrial production processes that require low noise, large working pressure difference, limited installation position, or fast response speed. Pneumatic piston control valves are equipped with valve positioners

Main technical parameters

Nominal diameter mm

20

25

40

50

65

80

100

150

200

Valve seat diameter mm

10

12

15

20

25

32

40

50

65

80

100

125

150

200

Rated flow rate
Coefficient Kv

straight line

1.8

2.8

4.4

6.9

11

17.6

27.6

44

69

110

176

275

440

690

Equal percentage

1.6

2.5

4

6.3

10

16

25

40

63

100

160

250

400

630

Execution
that 's ok
machine
structure

model

Cylinder diameter

125

160

200

250

Travel distance mm

16

25

40

60

Spring range KPa

Airtight: 40-200, Airtight 80-240, 100-200, 200-350, 350-500

Traffic characteristics

Straight line; Equal percentage

Adjustable ratio

R=50：1

Nominal pressure MPa

1.6; 4.0; 6.4;

Medium temperature ℃

-40-230 ℃ (normal temperature type), heat sink 230-450 ℃ (medium temperature type), special order -100-600 ℃

Flange standard

Compliant with JB78-59 and JB79-59 standards, can be ordered and produced according to JB/79.1-94, JB/79.2-94, ANSI, JIS, DIN and other standards


Performance indicators (with locator)

project

Indicator value

project

Indicator value

Basic error%

1.0

beginning
end
spot
partial
Difference%

Qi Guan

Starting point

1.0

Starting point

Return difference

1.0

Qi Guan

Starting point

1.0

dead zone

0.4

Starting point

Rated travel deviation%

2.5

Allowable leakage rate L/h

Rated capacity of valve


Allowable pressure difference (MPa)
ZSJP type precision small pneumatic piston regulating valve (single seat)

Gas source pressure MPa

Spring range MPa

Nominal diameter DN

20

25

40

50

65

80

100

150

200

10

12

15

20

32

40

125

150

0.25

40-200

2.9

2.5

1.6

0.9

0.73

0.8

0.6

0.31

0.29

0.19

0.12

0.13

0.09

0.05

0.30

80-240

5.9

5.0

3.2

1.8

1.47

1.6

1.2

0.62

0.59

0.39

0.24

0.27

0.18

0.10

0.25

100-200

6.4

6.25

4.0

2.25

1.84

2.0

1.3

0.78

0.74

0.49

0.31

0.34

0.22

0.123

0.40

200-350

6.4

6.4

4.5

3.68

4.0

2.6

1.56

1.48

0.98

0.62

0.78

0.44

0.246

0.55

350-500

6.4

6.4

6.4

4.5

2.73

2.6

1.72

1.1

1.2

0.77

0.43

ZSJM type precision small pneumatic piston regulating valve (sleeve)

Gas source pressure MPa

Spring range
KPa

Nominal diameter DN

20

25

40

50

65

80

100

150

200

32

40

125

150

0.25

40-200

0.37

6.4

6.4

5.7

4.2

3.3

2.7

2.5

1.8

1.3

0.30

80-240

6.4

6.4

6.4

6.4

6.4

6.4

5.4

5.0

3.6

2.6

0.25

100-200

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.2

4.5

3.2

0.40

200-350

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

0.55

350-500

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

6.4

Note: 1. The data listed in the table is for pneumatic type
When the pressure difference exceeds 1MPa, the sealing surface of the valve core and seat should be welded with hard alloy or other materials should be used instead

Dimensions and weight

Nominal diameter DN

D

B

Lmm

Hmm

H1

Weight kg

PN16

PN40

PN64

normal atmospheric temperature

Medium temperature

PN16

PN40

PN64

PN16

PN40

25

148

220

184

197

210

383

533

57.5

57.5

67.5

17

21

40

185

222

235

251

423

588

72.5

72.5

82.5

20.4

29.4

50

254

267

286

450

596

80

80

87.5

24.4

34.4

65

232

280

276

292

311

582

762

90

90

100

42

61

80

298

317

337

594

779

97.5

97.5

105

50

73

100

352

368

394

612

810

107.5

115

125

80

94

150

283

350

451

473

508

787

1047

140

150

170

120

140

200

600

600

650

807

1067

167.5

187.5

202.5

180

201

Note: 1. The weight of the medium temperature type increases by 20%
2. The gas signal interface is ZG1/4“

Main component materials and available temperature range

Valve body
Upper valve cover

ZG230-450

-40～+450℃

ZG1Cr18Ni9Ti

-250～+550℃

ZGOCr18Ni12Mo2Ti

-250～+550℃

Valve plug
Sleeve

1Cr18Ni9

-250～+550℃

OCr18Ni12Mo2Ti

-250～+550℃

filler

teflon

-40～+200℃

Flexible graphite

-200～+600℃

Piston ring

TPU

Compression spring

60Si2MnA

Cylinder

Aluminum alloy precision drawn tube
Hard anodizing

Can be equipped with accessories

model

name

remarks

QFH-261

Air filter pressure reducer

Or QGJ-261

Air filter pressure reducer

ZPQ

Pneumatic valve positioner

20～100KPa

Or ZPD-171/172

Electric valve positioner

4～２０mA
0～１０mA

Pneumatic high-power amplifier

1：2

ZPQ

Pneumatic holding valve

ZPXS

Side mounted hand-operated mechanism

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