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Handle stainless steel butterfly valve
Product model: D71f-16P
Nominal diameter: dn50-300mm
Nominal pressure: pn0.6 ~ 1.6Mpa
Applicable temperature: - 40 ～ 200 ℃
Applicable media: water, air, natural gas, oil and weak corrosive fluid
Main materials: ductile iron, cast steel, alloy steel, stainless steel
Driving mode: manual, worm and worm gear drive, air drive, electric drive
Design standard: GB / t2238-1989
Flange connection size: GB / t9113.1-2000; GB / t9115.1-2000; jb78
Structure length: GB / t12221-1989
Pressure test: GB / t13927-1992; JB / t9092-1999

Product overview:

The opening and closing part of the D71f-16P stainless steel wafer butterfly valve is a disc-shaped disc rotating around its own axis in the valve body, thus achieving the purpose of opening and closing or adjusting.Butterfly valve has the advantages of simple structure, small volume, light weight, small installation size, fast switch.


Structural features:

1, this valve adopts double eccentric structure, with the sealing function of more and more close, sealing performance is good.

2. The sealing materials are matched with stainless steel and nitrile oil-resistant rubber for long service.

3, rubber sealing ring can be located on the valve body, can also be located on the butterfly board, can be suitable for different characteristics of the media, for the user to choose.

4. Butterfly plate adopts frame structure with high strength, large flow area and small flow resistance.

5, the overall baking paint, can prevent corrosion and as long as the replacement of sealing seat sealing material, can be used in different media.

6, the valve has a two-way sealing function, installation is not subject to the direction of control of the medium, nor affected by the space position, can be installed in any direction.

7, the valve structure, flexible operation, labor-saving, convenient.


Parameter description:

DN（mm)

對夾式50-300

法蘭式50～2000

PN（MPa)

0.6

1.0

1.6

Sealing test(MPa)

0.66

1.1

1.76

Strength test(MPa)

0.9

1.5

2.4

Suitable temperature

Nitrile rubber: -40℃ ~ 90℃ fluorine rubber: -20℃ ~ 200℃

Applicable medium

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

Leakage rate

GB/ t13927-92 standard

Drive way

Worm gear transmission, electric, pneumatic, hydraulic


Main parts materials:

Part name

Material

Valve body

304、WCB、QT450-10、HT200、HT250

Butterfly plate

304、WCB、QT450-10、HT200、HT250

Valve shaft

2Cr13

Sealing ring

Nitrile oil-resistant rubber

packing

Flexible graphite

Manufacturing standards

GB/T 122387-89

Flange standard

GB9113-2000、GB17241.6-1998

Structural length standard

GB12221-89

Inspection standard

GB/T 13927-92


Main dimensions:

DN

L

H

HO

A

B

0.6MPa

1.0MPa

1.6MPa

DO

n-d

DO

n-d

DO

n-d

50

43

63

235

270

110

110

4-14

125

4-18

125

4-18

65

46

70

250

270

110

130

4-14

145

4-18

145

4-18

80

46

83

275

270

110

150

4-18

160

8-18

160

8-18

100

52

105

316

270

110

170

4-18

180

8-18

180

8-18

125

56

115

340

310

110

200

8-18

210

8-18

210

8-18

150

56

137

376

310

110

225

8-18

240

8-22

240

8-22

200

60

164

430

353

150

280

8-18

295

8-22

295

8-22

250

68

206

499

353

150

335

12-18

350

12-22

355

12-26

300

78

230

570

380

150

395

12-22

400

12-22

410

12-26

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