Flanged ventilated butterfly valve

Products > Butterfly Valve > Flanged ventilated butterfly valve

Flanged ventilated butterfly valve

Product model: D341W
Nominal diameter: DN50 ~ 2000mm
Nominal pressure: PN0.05,0.25,0.6MPa
Medium temperature: -30 ℃ ~ -350 ℃
Main material: carbon steel, stainless steel, chrome nickel molybdenum titanium steel, chrome molybdenum titanium steel
Operation: manual, worm gear, pneumatic, electric
flange connection: GB / T9115.1-2000
medium: gas, dust and gas, flue gas, etc.
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First, the flange type butterfly valve Product Overview:
Flange type ventilating butterfly valve is made of steel plate welding. It has the characteristics of short size, light weight and easy installation. The valve has the advantages of small driving torque, flexible opening and closing, and easy operation. The oil seal ring is arranged on the valve body, and no visible clearance exists between the sealing seal, and the leakage rate is small. The expansion gap between the butterfly plate and the valve body is large, which can effectively prevent the stuck phenomenon caused by the thermal expansion and contraction. The valve can be equipped with a variety of driving devices, such as manual device, worm gear drive, pneumatic device, electric device. Ventilation butterfly valve is widely used in metallurgy, petrochemical, power, building materials, mines and other industrial pipelines, control or regulate the role of medium gas.
  
Second, the flange-type ventilation butterfly valve The main parameters:
Nominal pressure (MPa)0.05MPaMedium temperature-30 ° C to -350 ° C
Strength test0.1MPaApplicable mediaHot and cold wind, smoke
Medium flow rate25m / sLeakage rate3%
 
Third, the flange type butterfly valve main parts Material:
Part NameBodyValve plateValve shaft
materialCarbon steelCarbon steelCarbon steel, stainless steel


Fourth, the flange-type ventilation butterfly valve main connection size and weight

DN

D

D1

n-do

b

L

weight

D41

D341

D941

200

320

280

8-18

16

140

34

42

78

250

375

335

12-18

16

140

38

46

83

300

440

395

12-22

16

170

48

54

93

350

490

445

12-22

16

170

56

64

95

400

540

495

16-22

16

190

73

81

98

450

595

550

16-22

16

190

81

110

140

500

645

600

20-22

16

190

99

128

179

600

755

705

20-26

18

210

127

157

213

700

860

810

24-26

18

210

152

199

267

800

975

920

24-30

18

210

182

229

326

900

1075

1020

24-30

18

250

240

287

385

1000

1175

1120

28-30

18

250

383

430

528

1100

1275

1220

28-30

18

250

 

620

682

1200

1375

1320

32-30

18

250

 

765

827

1400

1575

1520

36-30

18

300

 

1188

1250

1600

1790

1730

40-30

22

300

 

1393

155

1800

1990

1930

44-30

22

300

 

1800

1865

2000

2190

2130

48-30

22

300

 

2130

2190

2100

2300

2240

52-33

22

300

 

 

2785

2200

2405

2340

52-33

26

350

 

 

3690

2400

2605

2540

56-33

26

350

 

 

4720

2600

2805

2740

60-33

26

350

 

 

5530

2800

3030

2960

64-36

26

400

 

 

6035

3000

3230

3160

68-36

26

400

 

 

6280