Experimental Pressure (Mpa)

 

Butterfly Valve

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Last update: 2017-12-11 21:08
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Product details

 

Technical performance

Nominal Diameter DN(mm)

Standard

Nominal pressure PN(Mpa)

Experimental Pressure (Mpa)

气密试验(Mpa)

Strength

positive Seal

reversal Seal

50-3000

GB

0.6, 1.0

1.5PN

1.1 PN

1.1 PN

0.6

1.6, 2.5, 4.0

0.6-0.8 PN

Nominal Diameter DN(mm)

Standard

Class

Mpa

Mpa

Mpa

Mpa

2-72

USA

150LB

3.0

2.2

0.5-0.8Ps

0.6

2-24

300LB

7.5

5.5

4-16

600LB

22.5

16.5

Applicable media

steam, natural gas, oil air

Driven method

Manual Electric Pneumatic Hydraulic

Pressure -Temperature grade of nodular cast iron valve 

Nominal pressure Mpa

Max Temperature (℃)

-30-120

150

200

250

300

350

Max allowable Working pressure (Mpa)

1.6

1.6

1.52

1.44

1.28

1.12

0.88

2.5

2.5

2.38

2.25

2

1.75

1.38

Materials of parts

Name

Material

Body

WCB WC6 WC9 CF8 HT200 CF8M CF3 CF3M QT400

repair welding

CR13 CoCrw 1Cr18Ni9Ti

Seal side

solid

CF8 CF8M CF3 CF3M

Gasket

Cr13 1Cr18Ni9Ti Ocr18 Ni9Ti

 

Temperature (℃)

        Max Allowable Working pressure for each of Temperatures Mpa

PN2.0

PN5.0

PN10

PN15

-29-38

1.96

5.11

10.21

15.32

50

1.92

5.01

10.02

15.02

100

1.77

4.64

9.28

13.91

150

1.58

4.52

9.05

13.57

200

1.40

4.38

8.76

13.15

250

1.21

4.17

8.34

12.52

300

1.02

3.87

7.75

11.62

350

0.84

3.70

7.39

11.09

375

0.74

3.65

7.29

10.94

400

0.65

3.45

6.90

10.35

425

0.56

2.88

5.75

8.63

450

0.47

2.0

4.01

6.01

475

0.37

1.35

2.71

4.06

500

0.28

0.88

1.76

2.64

525

0.19

0.52

1.04

1.55

540

0.13

0.33

0.65

0.98

Pressure —Temperature grade for Flange and WCB valve

Pressure —Temperature grade for Flange and CF8M valve

Temperature (℃)

  Max Allowable Working pressure for each of Temperatures Mpa

PN2.0

PN5.0

PN10

PN15

-29-38

1.90

4.96

9.92

14.89

50

1.84

4.80

9.60

14.37

100

1.59

4.15

8.30

12.45

150

1.44

3.75

7.50

11.25

200

1.32

3.44

6.87

10.31

250

1.21

3.21

6.41

9.62

300

1.02

3.05

6.11

9.16

350

0.84

2.93

5.87

8.80

375

0.74

2.89

5.78

8.68

400

0.65

2.86

5.73

8.59

425

0.56

2.85

5.70

8.54

450

0.47

2.8

5.64

8.46

475

0.37

2.80

5.60

8.40

500

0.28

2.78

5.56

8.34

525

0.19

2.58

5.16

7.74

550

0.13

2.50

4.99

7.49

575

0.13

2.28

4.56

6.86

600

0.13

1.98

3.96

5.94

625

0.13

1.58

3.16

4.74

650

0.13

1.25

2.50

3.74

675

0.13

0.98

1.97

2.95

700

0.13

0.77

1.54

2.3

725

0.13

0.62

1.25

1.86

750

0.13

0.48

0.96

1.44

775

0.13

0.38

0.75

0.13

800

0.10

0.30

0.61

0.91

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