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  • D971H electric hard seal butterfly valve

D971H electric hard seal butterfly valve

Key words:D971H electric hard seal butterfly valve
Summary:Simple introduction D971H electric hard seal butterfly valve adopts three partial hardness seal structure to the clamp design, through strict calculation, "U" type sealing ring and butterfly plate almost no friction, solve the traditional ec…
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Electric hard seal on clip butterfly valve


Simple introduction

D971H electric hard seal butterfly valve adopts three partial hardness seal structure to the clamp design, through strict calculation, "U" type sealing ring and butterfly plate almost no friction, solve the traditional eccentric butterfly valve in 0 ~ 10 degrees for opening and closing the disadvantages of seal face is still in the sliding contact friction moment be opened instantly sealing surface namely butterfly plate in the separation of close contact with the sealing effect and prolong the service life, sealed performance is the best.

The sealing surface of disc plate is made of hard gold based surfacing and drilling, and the sealing surface is resistant to wear. The butterfly plate of large size is made of spinning frame structure, featuring high strength, large flow area and small flow resistance,"Switch" only needs to turn stem 90°to complete.

Therefore electric hard seal butterfly valve is widely used in the medium temperature ≤425 ℃metallurgy, electric power, petroleum, chemical industry, air, gas, combustible gas and water supply and drainage and other corrosive media pipeline, as the best device to regulate flow and cut off the fluid.Products in line with national GB/ t13927-92 valve pressure test standards.


Technical parameters

Optional functions of electric actuator

switch type, integral type, adjusting type, intelligent type

Optional models of electric actuator

Q, DQ, QM, QC, AKQ series;Z series and AK seriesfor large caliber

Voltage

AC220V, AC110V, AC380V, DC12V, DC24V, DC110V

Nominal diameter

DN50mm~DN1200mm

Nominal pressure

PN1.0MPa~PN2.5MPa

Applicable temperature

-30~+425℃

Connection mode

sandwich type

Body material

carbon steel, stainless steel

Valve plate material

carbon steel, stainless steel, alloy steel, etc.

Seat lining

hard alloy, carbon pigeon, silver alloy, graphite compound,tetrafluoro

Suitable medium

liquid water, steam, oil, weak corrosive medium, etc.


Structure diagram




Main dimension table

DN

(mm)

1.0MPa

1.6MPa

L

H

D1

D2

n-Φd

L

H

D1

D2

n-Φd

40

33

76

110

85

4-Φ18

33

76

110

85

4-Φ18

50

43

85

125

100

4-Φ18

43

85

125

100

4-Φ18

65

46

95

145

120

4-Φ18

46

95

145

120

4-Φ18

80

49

110

160

135

4-Φ18

64

110

160

135

8-Φ18

100

56

122

180

155

8-Φ18

64

122

180

155

8-Φ18

125

64

138

210

185

8-Φ18

70

138

210

185

8-Φ18

150

70

158

240

210

8-Φ22

76

158

240

210

8-Φ22

200

71

188

295

265

8-Φ22

89

188

295

265

12-Φ22

250

76

224

350

320

12-Φ22

114

224

350

320

12-Φ26

300

83

254

400

368

12-Φ22

114

254

400

368

12-Φ26

350

92

288

460

428

16-Φ22

127

288

460

428

16-Φ26

400

102

320

515

482

16-Φ26

140

320

515

482

16-Φ30

450

114

350

565

532

20-Φ26

152

350

565

532

20-Φ30

500

127

388

620

585

20-Φ26

152

388

620

585

20-Φ33

600

154

440

725

685

20-Φ30

178

440

725

685

20-Φ36

700

165

488

940

800

24-Φ30

229

488

840

800

24-Φ30

800

190

572

950

905

24-Φ33

241

572

950

905

24-Φ39

900

203

628

1050

1005

28-Φ33

241

628

1050

1005

28-Φ39

1000

216

698

1160

1115

28-Φ36

300

698

1160

1115

28-Φ42

1200

254

810

1380

1325

32-Φ39

360

810

1380

1325

32-Φ48

1400

279

940

1590

1525

36-Φ42

390

940

1590

1525

36-Φ48

1600

318

1060

1820

1750

40-Φ48

440

1060

1820

1750

40-Φ55

1800

356

1150

2020

1950

44-Φ48

490

1150

2020

1950

44-Φ55

2000

406

1265

2230

2160

48-Φ48

540

1265

2230

2160

48-Φ60



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