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Shanghai Shuangjia Valve Co., Ltd

  • E-mail

    2336539452@qq.com

  • Phone

    15221225095

  • Address

    Huangdu Industrial Park, Jiading District, Shanghai

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Steam proportional integral valve, steam electric control valve, steam electric valve
Date: 2017-02-14Read: 2

Product ordering instructions:
  
When the user has determined the valve type and model (especially non-standard models), the user should correctly explain the meaning and requirements of its model.
  
2. Users should place orders based on the product models listed in the sample. If there are special requirements for the product items, please specify them in the order:
  
1) Structural length 2) Flange standard 3) Valve structural form: such as full or reduced channel diameter, body cover connection form 4) Valve internals and other material requirements 5) Pressure testing, inspection standards, labeling, and other requirements;
  
3. When the application of Shuangjia valves is very important or the environment is complex, please provide design drawings and detailed parameters as much as possible, and the technical department of Shuangjia valves will review and control them for you.
  
4. Shuangjia valves (:) can be configured with electric devices, pneumatic drive devices, and turbine devices according to specific user requirements.
  
5. All types of valves produced by Shuangjia Valve Factory can meet the requirements specified in the order, and the products are strictly inspected and tested according to the relevant standards before leaving the factory.
  
6. The warranty period for all products of Shuangjia Valve is within 18 months of formal installation and use by the customer.

Control signal:DC1-5V or 4-20mA

1Steam proportional integral valve Overview

Steam proportional integral valveIt is a pressure balance regulating valveAdopting cage type sleeve guidance and single seat sealing structure, equipped with multiple spring actuators or electric actuators, the flow channel is S-shaped, and imported sealing rings are selected. Overall, it has the characteristics of stable operation, large allowable pressure difference, and low flow characteristic noise. Especially suitable for working environments that allow for small pressure differences and large pressure differences before and after valves. This series of products includes various types such as room temperature type, high temperature type, low temperature type, adjustable cutting type, and corrugated pipe sealing type.Steam proportional integral valveThe nominal pressure rating isPN1.6、 4.0 6.4, 10.0; Valve body diameter range DN20-DN300; Suitable for various grades within the fluid temperature range of -150 ℃ to+560 ℃; The leakage level atmosphere is divided into four levels: level IV, level V, and level VI; The flow characteristics include straight lines and equal percentages. Multiple specifications to choose from

IISteam proportional integral valveMain component materials and structural diagrams

1

valve body

WCB

CF8

CF8M

CF3M

2

valve seat

304

304

316

316L

3

valve core

304

304

316

316L

4

guide bushing

WCB

CF8

CF8M

CF3M

5

valve cover

WCB

CF8

CF8M

CF3M

6

valve stem

304

304

316

316L

7

filler

PTFE/flexible graphite

8

spring

65Mn

304

316

316L

9

nut

304

304

316

316L

IIISteam proportional integral valveValve cover form

Note: Room temperature type: Working temperature of room temperature type-20-+200 ℃, leakage level IV.
High temperature valve cover with added heat sink, which can be used for medium temperature-At temperatures between 60 and 450 ℃.
The bellows sealing type forms a * seal for the valve stem that moves up and down, blocking fluid leakage.
The low-temperature type adopts an extended valve cover and insulation board structure, which can be used for-196 ℃ deep cold environment.

4Steam proportional integral valveMain technical parameters

Nominal diameter DN (mm)

20

25

32

40

50

65

80

100

125

150

200

250

300

Rated flow coefficient
(KV)

straight line

6.9

11

17.6

27.5

44

69

110

176

275

440

690

1100

1760

Wait a hundred
Score ratio

6.3

10

16

25

40

63

100

160

250

400

630

1000

1600

Rated travel L (mm)

16

25

40

60

100

Nominal pressure PN (MPa)

1.6 2.5 4.0 6.4 10.0

Model of actuator

PSL

201/202

204

208

312

320

3810L

3810LSA-08

3810LSA-20

3810LSB-30

3810LSB-50

3810LSC-65

Inherent flow characteristics

Straight line, equal percentage

inherent adjustable ratio

50:1

Working temperature t (℃)

Ordinary type: cast steel -40-250; Cast stainless steel -60-250 heat dissipation type: cast steel -40-450; Cast stainless steel -60-450

input signal

DC1-5V、 DC4-20mA, 220VAC (switch signal)

power supply voltage

220VAC 50Hz

5Steam proportional integral valve Electric actuator

1. Main performance parameters of electric actuator

model

Rated output force N

Speed mm/s

Technical specifications

PSL

381L

PSL

381L

PSL

381L

PSL

381L

201

381LSA-08
381LXA-08

1000

800
800

0.25

4.2
4.2

Power supply: AC220V 50Hz
Input signal: DC4-20mA
DC1-5V
(Shielded wire for signal line)
Output signal: DC4-20mA
Protection level: IP67
With handwheel

Power supply: AC220V 50Hz
Input signal: DC4-20mA
DC1-5V
(Shielded wire for signal line)
Output signal: DC4-20mA
Protection level: equivalent to IP55
Explosion proof mark: Exd Ⅱ BT4
with handle

202

381LSA-20
381LXA-20

2000

2000
2000

0.50

2.1
2.1

204

381LSB-30
381LXB-30

4500

3000
3000

0.50

3.5
3.5

208

381LSB-50
381LXB-50

8000

5000
5000

1.00

1.7
1.7

312

381LSC-65

12000

6500

0.60

2.8

325

381LSC-99

25000

10000

1.0

2.0

2electric regulating valveMain performance indicators

project

indicator value

Basic error%

Equipped with 3610L ± 2.5; Equipped with locator ± 1.0

Return difference%

Equipped with 361L ± 2.0; Equipped with PSL ± 1.0

Dead zone%

1.0

Constant point deviation%

electric opening

Starting point

±2.5

destination

±2.5

Electricity off

Starting point

±2.5

destination

±2.5

adjustable range

50:1

Rated travel deviation%

2.5

Discharge rate L/H

Compliant with JB/T7387-94 Level IV rated capacity of less than valve × 10-4

3. Allowable pressure difference

Nominal diameter (mm)

20

25

40

50

65

80

100

150

200

250

300

Valve seat diameter (mm)

10

12

15

20

25

32

40

50

65

80

100

125

150

200

250

300

actuator

Allowable pressure difference △ P (MPa)

Equipped with PSL

PSL202

6.4

6.4

6.4

4.90

3.14

1.92

1.23

0.78

PSL204

4.31

2.76

1.76

1.04

0.69

0.44

PSL208

1.86

1.23

0.78

0.50

0.35

0.20

PSL320

1.26

0.87

0.49

0.32

0.22

Equipped with 361L

381LSA-20

6.4

6.4

6.4

4.90

3.14

1.92

1.23

0.78

381LSB-50

4.79

3.06

1.96

1.16

0.76

0.49

381LSC-65

1.51

0.99

0.64

0.41

0.28

381LSC-99

0.63

0.44

0.25

0.16

0.11

noteThe actual configuration needs to be determined based on specific process parameters. If the pressure difference is allowed to be clear or the maximum working pressure difference exceeds the list range, please contact us and take appropriate measures to solve it

VISteam proportional integral valveMain external dimensions

Nominal diameter (DN)

20

25

32

40

50

65

80

100

125

150

200

250

300

structural length
(L)

PN16/25

185

200

205

222

250

276

298

350

410

451

600

670

735

PN40

190

205

210

230

255

285

310

355

425

460

615

685

750

PN64、100

200

210

220

251

286

311

337

394

440

475

630

700

765

Room temperature type
(H)

PN16/25

699

711

728

728

731

827

839

857

895

1140

1160

1305

1512

PN40

679

721

738

738

741

837

849

867

905

1150

1180

1335

1565

PN64/100

682

733

750

750

753

849

861

879

917

1180

1240

1385

1605

high-temperature type
(H)

PN16/25

849

861

893

893

901

975

1024

1067

1250

1400

1420

1513

1670

PN40

859

871

903

903

911

985

1034

1077

1260

1415

1440

1545

1690

PN64/100

875

885

915

915

923

997

1055

1095

1280

1450

1465

1575

1720

H1

PN16/25

53

58

68

73

80

90

98

108

123

140

168

203

230

PN40

53

58

68

73

80

90

98

115

135

150

188

223

255

PN64/100

63

68

75

83

88

100

105

125

148

170

203

235

265

Note: The dimensions in the table are without standard attachments. Due to possible changes in product improvement technology innovation parameters, please consult the company's technical department for data.

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