Professional Supplier for Heat Exchanger & Pressure Vessel

Wafer Type Center-Lined Butterfly Valve

Wafer Type Center-Lined Butterfly ValveWafer Type Center-Lined Butterfly Valve

 

Butterfly valve is mainly consisted of body, stem, disc, seat and driver (lever, gearbox, pneumatic and electric actuator) and so on. On-off and controlling flow of valve are made by turning stem and disc together. Features as following:

 

  1.Simple and compact construction, small in size and light in weight. Easy transportation    and installation.    2.Quick 90°on-off operation, minimized operating torque, eneergy saving.   3.Sealing capability well, long service life, with no leakage under pressure test.  4.Wide selection of materials applicable for various mediums.

5.Flow curve tending to straight line. Excellent regulation performance.

Main Performance Parameters

Nominal Diameter

DN40(1.5″)~DN1000(40″)

mm(inch)

Nominal Pressure

PN10

PN16

MPa

Test Pressure

Sealing

1.1

1.76

Shell

1.5

2.4

Working Temperature

-15~+150(C)

Suitable Medium

Fresh water, Sewage, Sea water, Air, Vapour, Food, Medicine, Oils, Acids, Alkalis etc..

Actuator

Lever, Gear box, Pneumatic or Electric actuator

 

Connection Dimensions

Size

A

B

C

D

L2

n-D1

D2

D3

D4

Φd1

k

IXI

F

DN40

1.5”

136

69

32.0

42.6

32

4-7

50

77

35

45

12.6

3

9×9

10

DN50

2”

161

80

42.0

52.9

32

4-7

50

77

35

45

12.6

3

9×9

10

DN65

2.5”

175

89

44.7

64.5

32

4-7

50

77

35

45

12.6

3

9×9

10

DN80

3”

181

95

45.2

78.8

32

4-7

50

77

35

45

12.6

3

11×11

10

DN100

4”

200

114

52.1

104

32

4-10

70

92

55

22.5

15.77

5

11×11

12

DN125

5”

213

127

54.4

123.3

32

4-10

70

92

55

22.5

18.9

5

14×14

14

DN150

6”

226

139

55.8

155.6

32

4-10

70

92

55

22.5

18.9

5

14×14

14

DN200

8”

260

175

60.8

202.5

45

4-12

102

115

70

15

22.1

5

17×17

17

DN250

10”

292

203

65.6

250.5

45

4-12

102

115

70

15

28.45

8

22×22

22

DN300

12”

337

242

76.9

301.6

45

4-12

102

140

70

11.25

31.6

8

22×22

24

DN350

14”

368

267

76.9

333.5

45

4-12

102

140

70

11.25

31.6

8

22×22

24

DN400

16”

400

309

85.7

389.6

52/72

4-18

140

197

100

11.25

33.1/37.9

10

27×27

27

DN450

18”

422

328

104.6

440.5

52/72

4-18

140

197

100

11.25

38/42.9

10/12

27×27

27

DN500

20”

480

360

130.3

491.6

64/82

4-18

140

197

100

9

41.1/45.7

10/12

36×36

32

DN600

24”

562

460

151.4

592.5

70/82

4-23

165

276

130

9

50.6/54

16

36×36

36

DN700

28”

624

520

163

695

66/82

8-18

254

300

200

7.5

55/63.5

18

DN750

30”

660

560

167

744.4

66/82

8-18

254

300

200

7.5

55/63.5

18

DN800

32”

672

591

188

794.7

66/82

8-18

254

300

200

7.5

55/63.5

18

DN900

36”

720

656

203

864.7

118

8-18

254

300

200

6.4

75

20

DN1000

40”

800

722

216

965

141

8-18

254

300

200

6.4

85

22

 

 

Material of main parts

No.

Item

Material

Specification

1

Body

Cast iron

ASTM A126 CL.B/GG25

Ductile iron

ASTM A536 65-45-12/GGG40

Carbon steel

ASTM A126 WCB

Stainless steel

ASTM A351 CF8/CF8M

Bronze

ASTM B148 C954

2

Disc

Ductile iron

ASTM A536 65-45-12/GGG40

Carbon steel

ASTM A126 WCB

Stainless steel

ASTM A351 CF8/CF8M

Bronze

ASTM B148 C954

3

Stem

Stainless steel

Astm a182 304/316/410

Alloy steel

Monel K500

4

Seat

Elastomer

EPDM

-15~+140(C)

NBR

-10~+80(C)

Viton

-20~+150(C)

PTFE

-15~+205(C)

5

Bushing

PTFE

Bronze