Pneumatic carbon steel regulating valve

Good adjustable type: large adjustable range, flow characteristics can be selected as equal percentage or linear

Nominal pressure PN16, PN25, PN40, PN64

Good sealing performance: can choose soft seal or corrugated pipe seal to improve sealing performance

Connection method: flange type, (special: welding type)

Widely used: various valve seat structures, heat sinks, suitable for different pressure differentials and temperatures

Valve body materials WCB, SS304, SS316, SS316L

Valve core materials: SS, SS304, SS316, SS316L, and Steyr welding

Technical Parameter

Sealing material PTFE, hard seal, special high-temperature material

Action mode: air open, air closed

Bellows SS, SS304, SS316

Valve seat structure P single seat

Packing PTFE, flexible graphite

Percentage and linearity of traffic characteristics

Push rod 2Cr13

Adjustable range 50:1

Gasket rubber asbestos board, 1Cr18Ni9Ti asbestos wrapped gasket

Signal range Pr: 0.2~1bar, 0.4~2bar

Flange standards GB9113-88, JB/T79-94, GB2555-81

Gas source pressure Ps: 1.4 bar~4 bar

Sealing grade III, IV, V, VI

Function attachment options

Environmental temperature -30 ℃~+70 ℃ (see locator parameters for explosion-proof type)

E - Explosion proof type (electrical locator explosion-proof level optional: explosion-proof type, intrinsic safety type)

Basic error ± 2.5%

X - with signal feedback (electrical locator with feedback or equipped with valve position transmitter)

Input signal 4~20mA DC, 0~10V DC

S - with handwheel mechanism

Output signal 4~20mA DC, 0~10V DC

Q - Fully Cut off Type

Explosion proof grade dIIBT4/T5/T6, dIICT4/T5/T6, intrinsic safety type

Attachment: Electrical locator, air filter pressure reducer, air lock valve, solenoid valve

Specifications and technical parameters

Nominal diameter DN (mm)

20

25

32

40

50

65

80

100

125

150

200

10

12

15

20

Rated flow coefficient Kv

straight line

1.5

2.8

4.4

6.9

11

17.6

27.5

44

69

110

176

275

440

690

Equal percentage

1.6

2.5

4.0

6.3

10

16

25

40

63

100

160

250

400

630

Rated process L (mm)

16

25

40

60

Membrane limited area Ae (cm2)

280

400

600

1000

Allowable leakage amount

Hard seat: IV (rated capacity of 10-4 valve) Soft seat: Class VI

Working temperature t

Normal temperature type

-20 ℃~200 ℃, -40 ℃~250 ℃, -60 ℃~250 ℃

Heat dissipation

-40 ℃~450 ℃, -60 ℃~450 ℃

High temperature type

450℃～560℃

Low temperature type

-60 ℃~-100 ℃, -100 ℃~-200 ℃, -200 ℃~-250 ℃

Allowable differential pressure pneumatic control valve, allowable differential pressure gauge unit: MPa

Effective area of membrane Ae (cm2)

280

400

600

1000

Signal range Pr (kPa)

20-100

20-100

40-200

20-100

20-100

40-200

20-100

20-100

4-200

20-100

20-100

40-200

Gas source pressure Ps (MPa)

0.14

0.14

0.25

0.14

0.14

0.25

0.14

0.14

0.25

0.14

0.14

0.25

Accessories required

-

P

P

-

P

P

-

P

P

-

P

P

state-owned
call
open up or clear out by poking or jabbing
footpath
DN(mm)
reach
valve
seat
straight
Diameter d
(mm)

20

10

5.35

6.40

6.40

12

3.72

6.40

6.40

15

2.33

5.55

6.40

20

1.34

3.12

4.01

25

25

0.86

2.00

2.57

32

32

0.75

1.74

2.24

40

25

1.22

2.85

3.67

32

0.75

1.74

2.24

40

0.48

1.11

1.48

50

32

0.75

1.74

2.24

40

0.48

1.11

1.48

50

0.31

0.71

0.91

65

65

0.27

0.63

0.81

80

50

0.46

1.07

1.38

65

0.27

0.63

0.81

80

0.18

0.42

0.52

100

65

0.27

0.63

0.81

80

0.18

0.42

0.52

100

0.11

0.26

0.34

125

125

0.12

0.29

0.37

150

100

0.19

0.44

0.57

125

0.12

0.29

0.37

150

0.09

0.20

0.25

200

125

0.12

0.29

0.37

150

0.09

0.20

0.25

200

0.05

0.11

0.14

Allowable differential pressure pneumatic open control valve, allowable differential pressure gauge unit: MPa

Effective area of membrane Ae (cm2)

280

400

600

1000

Signal range Pr (kPa)

20-100

40-200

20-100

40-200

20-100

4-200

20-100

40-200

Gas source pressure Ps (MPa)

0.14

0.25

0.14

0.25

0.14

0.25

0.14

0.25

Accessories required

-

P

-

P

-

P

-

P

state-owned
call
open up or clear out by poking or jabbing
footpath
DN(mm)
reach
valve
seat
straight
footpath
d(mm)

20

10

5.35

6.40

12

3.72

6.40

15

2.38

5.55

20

1.34

3.12

25

25

0.86

2.00

32

32

0.75

1.74

40

25

1.22

2.85

32

0.75

1.74

40

0.48

1.11

50

32

0.75

1.74

40

0.48

1.11

50

0.31

0.71

65

65

0.27

0.63

80

50

0.46

1.07

65

0.27

0.63

80

0.18

0.42

100

65

0.27

0.63

80

0.18

0.42

100

0.11

0.23

125

125

0.12

0.28

150

100

0.19

0.44

125

0.12

0.26

150

0.09

0.20

200

125

0.12

0.28

125

0.09

0.20

200

0.05

0.11

*regardingLDZJH（P）Single seat bellows sealed regulating valve,The maximum allowable pressure difference is1.0MPaIf the values in the table are less than1.0MPaIf the value is greater than, it remains unchanged

1.0MPa, then take the value1.0MPa.

Standard type, heat dissipation type, high temperature type external dimensions Unit: mm

Nominal Diameter

20

25

32

40

50

65

80

100

125

150

200

ΦA

282

308

394

498

L

PN16,40

150

160

180

200

230

290

310

350

400

480

600

PN64

230

230

260

260

300

340

380

430

500

550

650

H1

PN16

53

58

70

75

83

93

100

110

125

143

170

PN40

53

58

70

75

83

93

100

118

135

150

188

PN64

65

70

78

85

90

103

108

125

148

173

208

H

treetop
accurate
type

PN16

429

438

474

476

502

622

642

687

835

889

981

PN40

429

438

474

476

502

622

646

695

845

896

1000

PN64

456

468

511

525

535

663

673

705

868

958

1260

High temperature heat dissipation type

570

570

610

610

630

730

810

820

960

1090

1180

Outline dimension table of corrugated pipe sealing type Unit: mm

Nominal Diameter

20

25

32

40

50

65

80

100

125

150

200

ΦA

282

308

394

498

L

150

160

180

200

230

290

310

350

400

480

600

H1

53

58

70

75

83

93

100

110

125

143

170

H standard type

446.5

453.5

490

542

537.5

617.5

667

675

735

907.5

900

Low temperature type external dimension table Unit: mm

Nominal Diameter

20

25

32

40

50

65

80

100

125

150

200

ΦA

282

308

394

498

L

PN16,PN40

150

160

180

200

230

290

310

350

400

480

600

PN64

230

230

260

260

300

340

380

430

500

550

650

H1

PN16,40

52.5

57.5

70

75

82.5

92.5

100

117.5

135

150

187.5

PN64

65

70

77.5

85

90

102.5

107.5

125

147.5

172.5

207.5

H2

-60℃～-100℃

500

500

500

500

500

600

600

600

700

700

700

-100℃～-200℃

700

700

700

700

700

800

800

800

900

900

900

-200℃～-250℃

900

900

900

900

900

1000

1000

1000

1100

1100

1100

H

-60～-100℃

PN16,40

810

810

832

832

832

1026

1026

1024

1200

1198

1198

PN64

810

810

832

832

832

1026

1026

1024

1200

1198

1198

-100～-200℃

PN16,40

1010

1010

1032

1032

1032

1226

1226

1124

1400

1398

1398

PN64

1010

1010

1032

1032

1032

1226

1226

1124

1400

1398

1398

-200～-250℃

PN16,40

1210

1210

1232

1232

1232

1426

1426

1424

1600

1598

1598

PN64

1210

1210

1232

1232

1232

1426

1426

1424

1600

1598

1598

ΦD3

260

260

285

305

340

370

405

460

525

590

700

ΦD4

290

290

315

335

370

400

435

490

555

630

740

Bolt holes n (pieces) - d (diameter)

8-14

8-14

8-14

8-16

8-16

10-16

10-16

12-18

14-18

16-18

18-18

Weight table of regulating valve Unit: kg

Nominal Diameter

20

25

32

40

50

65

80

100

125

150

200

Standard type

PN16

16

17

19

21

23

35

48

57

64

70

90

PN40

16

17

19

21

23

35

48

60

67

74

95

PN64

20

21

25

30

33

44

71

91

100

115

145

High temperature heat dissipation type

17

18

20

22

25

36

51

60

67

74

95

Bellows sealed type

20

21

25

30

33

48

71

91

102

115

145

Low temperature type

20

21

23

26

28

42

58

69

77

84

108

*The weight of the high-temperature heat dissipation type in this table isPN16Based on this, the low-temperature type isPN40As a basis.

*Flange sealing surface form:PN10、PN16For convex surfaces,PN40、PN64For concave and convex surfaces, the valve body is concave

*Thin film actuator gas signal interface: internal threadM16*1.5

*Jacket insulation type jacket heat carrier interface: butt weldingΦ18*4

*The distance between the valve body flange and the flange end face can be manufactured according to the standard specified by the user.