Electric metal hard sealing butterfly valve

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Electric metal hard sealing butterfly valve

Product Type: D973H
Nominal diameter: DN50 ~ 2000mm
Nominal pressure: PN0.6 ~ 2.5MPa
Suitable temperature: Carbon steel: -29 ℃ ~ 425 ℃ Stainless steel: -40 ℃ ~ 650 ℃
Applicable medium: water, air, natural gas, oil products and weak corrosive fluid
Drive: worm gear, electric, pneumatic, hydraulic
Manufacturing standards: JB / T8527-97
Flange standard: GB9113-2000
Structure standard length: GB12221-89
Inspection standards: GB / T13927-92
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First, the electric hard seal butterfly valve product overview

D973H metal hard-sealed electric butterfly valve for food, medicine, petroleum, chemical, power plants, steel mills, industrial water treatment and high-rise building environmental protection, water supply and drainage pipe for regulating flow and cut off the best fluid device.

The introduction of advanced foreign technology can be based on the use of sophisticated J-shaped elastic ring and three eccentric multi-layer metal hard seal structure, is widely used in medium temperature ≤ 425 ℃ metallurgy, electricity, petrochemicals, as well as water supply and drainage and municipal Construction and other industrial pipes, for regulating the flow and breaking the use of fluids. The valve adopts three eccentric structure, the valve seat and the disc sealing surface are made of different hardness and stainless steel, has good corrosion resistance, long service life, the valve Jun mail two-way sealing function, the product complies with national GB / T13927-92 valve pressure Test Standard.

 

 Second, the characteristics of electric hard seal butterfly

1, the valve adopts three eccentric sealing structure, the valve seat and disc almost no wear, with the more the more tight sealing function.

2, the ring made of stainless steel, with the advantages of both metal seal and flexible seal, both in the case of low temperature and high temperature, have excellent sealing performance, with corrosion resistance, long service life and so on.

3, the sealing surface of the plate is cladded with cobalt-based hard alloy, the sealing surface is resistant to abrasion and long service life.

4, Large-format butterfly plate frame structure, high strength, large flow area, small flow resistance.

5, the valve has a two-way sealing function, the installation is not subject to restrictions on the flow of media, but also the location of space, can be installed in any direction.

6, the drive can be multi-station (rotated 90 ° or 180 °) installation, user-friendly.
 

D973H metal hard-sealed electric butterfly valve main performance characteristics are: 
 unique structure, small and lightweight, flexible operation, labor-saving and convenient; 
 sealed, reliable, can be sealed without leakage; 
 flow characteristics tend to have the best linear adjustment; 
 using three eccentric principle , So that almost zero loss of the sealing surface extends the service life of the valve; 
 wide range of applications. Such as: can be used for water, steam, oil, air, gas and other media. 
 Applicable to different temperatures and pressure levels below 6.4MPa, corrosion-resistant and other media pipeline.

 

Third, the electric hard seal butterfly valve main technical parameters

Nominal diameter DN (mm)

50 ~ 2000

Nominal pressure PN (MPa)

0.6

1.0

1.6

2.5

Seal test (MPa)

0.66

1.1

1.76

2.75

Strength test (MPa)

0.9

1.5

2.4

3.75

proper temperature

Carbon steel: -29 ℃ ~ 425 ℃ Stainless steel: -40 ℃ ~ 650 ℃

Suitable media

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

Leak rate

In line with GB / T13927-92 standards

Drive mode

Worm gear, electric, pneumatic, hydraulic

 

Fourth, the main components of electric hard seal butterfly valve material

Part Name

material

Body

WCB, alloy steel, stainless steel, QT450-10

Butterfly plate

WCB, alloy steel, stainless steel, QT450-10

Valve shaft

2Cr13 stainless steel, alloy steel

Sealing ring

Stainless steel ring

filler

Flexible graphite

 

Five, electric hard seal butterfly valve using the standard

Manufacturing Standards

JB / T8527-97

Flange standard

GB9113-2000

Structure length standard

GB12221-89

Inspection standards

GB / T13927-92

 

Sixth, D973H-10/16/25 / electric clamp-type hard-sealed butterfly valve main dimensions of connection (unit: mm)

Nominal diameter (DN)

Main dimensions

Flange size and bolt size

1.0MPa

1.6MPa

2.5MPa

L

H

H1

D1

4-Ф-M

D1

4-Ф-M

D1

4-Ф-M

50

43

530

112

125

Ф18

125

Ф18

125

Ф18

65

46

530

115

145

Ф18

145

Ф18

145

Ф18

80

49

565

120

160

Ф18

160

Ф18

160

Ф18

100

56

600

138

180

Ф18

180

Ф18

190

Ф23

125

64

640

164

210

Ф18

210

Ф18

220

Ф27

150

70

705

175

240

Ф23

240

Ф23

250

Ф27

200

71

775

208

295

M20

295

M20

310

M24

250

76

945

243

350

M20

355

M24

370

M27

300

83

1070

283

400

M20

410

M24

430

M27

350

92

1140

310

460

M20

470

M24

490

M30

400

102

1210

340

515

M24

525

M27

550

M33

450

114

1335

380

565

M24

585

M27

600

M33

500

127

1415

410

620

M24

650

M30

660

M33

600

154

1605

470

725

M27

770

M33

770

M36

700

165

1844

550

840

M27

840

M33

875

M39

800

190

2040

640

950

M30

950

M36

990

M45

900

203

2255

710

1050

M30

1050

M36

1090

M45

1000

216

2380

770

1160

M33

1170

M39

1210

M52

1200

254

2640

890

1380

M36

1390

M45

1420

M52