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BUTTERFLY VALVE
DN40-DN300 Butterfly valve
DN350-DN600 Butterfly Valve
DN550-DN1000 Single Flange Butterfly Valve
DN700-DN1200 U-Section Butterfly Valve
DN50-DN150 Thread End Butterfly Valve
DN50-DN300 Groove End Butterfly Valve
DN50-DN1200Flange Type Butterfly valve
CHECK VALVE
DN50-DN800 Wafer Type Dual-Plate Check valve
DN15-DN400 Wafer Type Single-Plate Check Valve
MANUAlL VALVE OPERATOR
Manual Valve Operator-Lever Handle
Manual Valve Operator-Gearbox
Operating Torque (In-Lbs)
Sheet of Cv Value
HomeProducts   → CHECK VALVE  → DN15-DN400 Wafer Type Single-Plate Check Valve
DN15-DN400 Wafer Type Single-Plate Check Valve
 
 
Medium Capability:
Freshwater, Sea water, Air, steam, food, medicine and kinds of oil, acid, alkali, salt.
Feature:
Long service life with reliable seal and without frequent maintenance. Butterfly valve have flow characteristics three times better than globe valve, and about 75% of a same size gate valve。Butterfly valve can be used for on/off service and throttling,They are superior in Multi-function as compared to gate or globe valves. Butterfly valve can be widely used in chemical field due to trim options and choice of elastomeric liner . 
Butterfly valve have feature of light in weight and small in size, for example, weight andsize of a 10” butterfly valve are 1/9 and 1/6 of a 10” gate valve. So butterfly valve is easy to install and save cost of piping system. Butterfly valve with resilient seat design can be bubble tight as compared to metal seated gate or globe valves. Butterfly valves offer 90-degree open to close. Butterfly valve is approximate 35-40% cost of a same size gate valve. Also low installed cost than gate valve. 
Properly installed butterfly valves are self cleaning and are less susceptible to failure due to trash material in pipe.
    

Item

Qty

Parts Name

1

1

Hook

2

1

Body

3

2

Mounting Sealing

4

1~2

Stem

5

2

Screw

6

2

Gasket

7

1

Disc

8

1

Seat

Nominal PressurePN10/PN16

 

Body

DISC

Stem

Bushing

Seat

Material

 

Material

 

WorkingTemperature

()

C.I

DI

416SS

LubricativeBronze

NR

-20-+85

D.I

WCB

431SS

Macromolecule+PTFE

HYPALON

-18-+135

WCB

AL-Brz

316SS

316SS+PTFE

EPDM

-30-+110

AL-Brz

Stainless Steel

 

 

NEOPRENE

-7-+93

Stainless Steel

 

 

 

NBR

-12-+82

 

 

 

 

WRR

-10-+50

 

 

 

 

VITON

-23-+150

 

 

 

 

HRR

-20-+150

 

 

 

 

PTFE

+10-+150


Outline Dimensions and Weight for Single Disc Check Valve DN15-DN400
 

Valve Size

A

B

C

D

E

F

G

Weight

Kgs.

inch

mm

1/4

15

7.5

10

53

38

8.6

19.8

0

0.2

3/4

20

10.6

11.5

63

47.5

10.3

22.5

0

0.3

1

25

14.7

12

73

55

14

25

0

0.4

1 1/4

32

18.8

12

85

63.2

19.8

27

0

0.5

1 1/2

40

20

16

94

72

28

27.5

1.5

0.9

2

50

25

16

109

86

38

30.8

3.2

1.2

2 1/2

65

38

16

129

109

46

34

3.5

1.7

3

80

46

16

144

119

56

37.5

3.5

2.1

4

100

71

16

164

146

75

32.5

6

2.7

5

125

95

16

195

173

96

34.5

8

3.8

6

150

114

19

221

197

113

37.5

8

5.8

8

200

140

28

276

255

151

49

11

13.2

10

250

188

32

331

312

195

51

12.5

21.7

12

300

216

38

386

363

229

57

20

34.9

14

350

263

38

446

416

272

67.5

16

46.6

16

400

305

45

498

467

311

69.5

19

68.8

Note:Dimensions for mounting flange for both single-disc and dual-disc check valve above mentioned conform BS4504 PN10. When required, standards from other countries or any special requirements are also available.