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Qucheng Valve Manufacturing Co., Ltd.

Add: Huilong Road, Hengfeng County Economic Development Park, Shangrao City, Jiangxi, China

Zip code: 334300

Tel: +86-793-5666767

Fax: +86-793-5666768

Marketing Department:

Mei Duanping +86-18279315000

Qiu Zhiqiang +86-18507949570

Kong Xinming +86-13576394097

General manager:

Denny Zhang +86-13905893101

Email: valve@quchenggroup.com

URL: www.quchengvalve.com

Group: www.quchenggroup.com

Your Location: Home >> Products

Rigid Seal butterfly valve

Product features: 
The valve adopts three eccentric structure Seal, valve seat and disc almost no wear, the concept of having a more tightly Seal function.

Materials

cast iron

Connection form

Flange

Structure form

Vertical Plate

Applicable medium

water

Pressure environment

high pressure

Working temperature

High temperature

Standard

GB

Flow direction

two-way

Drive way

manual

Parts and accessories

body

Nominal diameter

50-2000

Install Size

50-1200

The main technical parameters

Nominal by DN (Mm)

50 - 2000

Nominal pharmacological PN (MPa)

0.6

1.0

1.6

2.5

Sealing test (MPa)

0.66

1.1

1.76

2.75

Strength test (MPa)

0.9

Fifteen

twenty four

3.75

Suitable temperature

Carbon steel: -29 °C - 425 °C Stainless steel: -40 °C - 650 °C

Applicable medium

Water, air, natural gas, oil and weak corrosive fluid

Leak Rate

In line with GB / T13927-92Standard

Drive way

Worm gear, electric, pneumatic, hydraulic

Main parts Materials

Part name

Materials

body

WCB, alloy steel, Stainless steel, QT450-10

Disc

WCB, alloy steel, Stainless steel, QT450-10

Valve shaft

2Cr13 Stainless steel, alloy steel

Seal ring

Stainless steel ring

Packing

Flexible graphite

Execution standard

Manufacturing Standard

JB / T 8527-97

Flange Standard

GB9113-2000

Length of structureStandard

GB12221-89

Inspection Standard

GB / T 13927-92

 the main Shape & connecting Size of D73H-10/16/25 / Double-clip type Rigid Seal butterfly valve (Unit: Mm)

Nominal by (DN)

Main Size

Flange Size and bolt specifications

1.0MPa

1.6MPa

2.5MPa

L

H

H1

D1

4-Ф-M

D1

4-Ф-M

D1

4-Ф-M

50

43

350

112

125

Ф18

125

Ф18

125

Ф18

65

46

370

115

145

Ф18

145

Ф18

145

Ф18

80

49

380

120

160

Ф18

160

Ф18

160

Ф18

100

56

420

138

180

Ф18

180

Ф18

190

Ф23

125

64

460

164

210

Ф18

210

Ф18

220

Ф27

150

70

555

175

240

Ф23

240

Ф23

250

Ф27

200

71

605

208

295

M20

295

M20

310

M24

250

76

680

243

350

M20

355

M24

370

M27

300

83

800

283

400

M20

410

M24

430

M27

350

92

835

310

460

M20

470

M24

490

M30

400

102

915

340

515

M24

525

M27

550

M33

450

114

960

380

565

M24

585

M27

600

M33

500

127

1020

410

620

M24

650

M30

660

M33

600

154

1225

470

725

M27

770

M33

770

M36

700

165

1355

550

840

M27

840

M33

875

M39

800

190

1470

640

950

M30

950

M36

990

M45

900

203

1545

710

1050

M30

1050

M36

1090

M45

1000

216

1795

770

1160

M33

1170

M39

1210

M52

1200

254

1965

890

1380

M36

1390

M45

1420

M52

Connection: Flange type 
Drive way: manual, worm gear, electric, pneumatic 
Performance parameters

Nominal diameter (Mm)

50-1200

Nominal pressure

Shell

twenty four

5.0

Seal

1.6

3.0

Medium temperature (°C)

Normal -39 °C - 650 °C

Applicable medium

Fresh water, waste water, sea Water, steam,, gas, all kinds of oil, various chemical

Operation method

Shank, cochlear dynamic, electric, pneumatic

parameter

1

body

Mo iron ball; Stainless steel; steel; fluorine plastic

2

Valve shaft

Carbon steel; Stainless steel

3

Elastic ring

Stainless steel

4

The valve plate

Mo iron ball (surface welding Stainless steel); Stainless steel; fluorine plastic

5

Flange cover

Carbon steel; Stainless steel

6

Gland

Mo iron ball; Stainless steel; steel

7

Taper pin

Stainless steel; steel

8

Packing

Asbestos rope

9

bushing

Bronze; fluorine plastic

specification

A

B

C

D

F

NM

           

Mm

Inch

AWSI 125/150

PN10

PN16

PN25

AWSI 125/150

PN10

PN16

PN25

50

2

75

130 + 30

32

12

120.7

125

125

125

4-5 / 8 "-11

4-M16

4-M16

4-M16

65

21/2

85

135 + 30

32

14

137.7

145

145

145

4-5 / 8 "-11

4-M16

4-M16

8-M16

80

3

95

155 + 30

32

15

152.4

160

160

160

4-5 / 8 "-11

4-M16

8-M16

8-M16

100

4

110

165 + 30

32

16.5

190.5

180

180

190

8-5 / 8 "-11

8-M16

8-M16

8-M20

125

5

125

185 + 30

32

17

215.9

210

210

220

8-3 / 4 "-10

8-M16

8-M16

8-M20

150

6

150

220 + 35

32

19

241.3

240

240

250

8-3 / 4 "-10

8-M20

8-M20

8-M20

200

8

172

245 + 35

38

30

298.5

295

295

310

8-3 / 4 "-10

8-M20

12-M20

12-M20

250

10

210

285 + 35

38

40

362

350

355

370

12-7 / 8 "-9

12-M20

12-M24

12-M27

300

12

246

325 + 40

38

40

431.8

400

410

430

12-7 / 8 "-9

12-M20

12-M24

16-M27

350

14

282

370 + 40

45

44

476.3

460

470

490

12-1 "-8

16-M20

16-M24

16-M30

400

16

355

370 + 40

51

44

539.8

515

525

550

16-1 "-8

16-M24

16-M27

16-M33

450

18

380

395 + 40

51

44

577.9

565

585

600

16-1 / 8 "-7

20-M24

20-M27

20-M33

500

20

420

435 + 45

64

54

635

620

650

660

20-1 / 8 "-7

20-M24

20-M30

20-M33

600

twenty four

482

500 + 45

70

50

749.3

725

770

770

20-1 / 8 "-7

20-M27

20-M33

20-M36

700

28

560

575 + 45

72

34

-

840

840

875

-

24-M27

24-M33

24-M36

800

32

660

675 + 50

72

34

-

950

950

990

-

24-M30

24-M36

28-M42

900

36

730

745 + 50

77

30

1085.9

1050

1050

1090

32-11 / 2 "-6

28-M30

28-M36

28-M42

1000

40

800

820 + 50

85

94

-

1160

1170

1210

-

28-M33

28-M39

28-M45

1200

48

950

975 + 50

95

100

-

1380

1380

1420

-

32-M36

32-M45

32-M52