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productn Name:wafer stainless steal butterfly valve
products Specs: API butterfly valve
Issue time:2008-4-26 9:08:46
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Product name: electric stainless steal butterfly valve

Their serious : stainless steal butterfly valve

Key word ; stainless steal butterfly valve

Product type; D943H-16P9hfg

 

First 、work conditions ;

 

  I can plant the introduction of advanced technology from abroad on the basis of a sophisticated J-shaped elastic ring and three eccentric multi-level metal seal structure, and is widely used in medium temperature of ≤ 425 governance of the electricity, oil and chemicals, as well as water supply and drainage Municipal and industrial pipeline construction for regulating air flow and the use of stop-contained. The valve by three eccentric structure, and the valve seat dish plate sealing surface are different hardness and the production of stainless steel, has excellent corrosion resistance and long service life, the two-way valve sealing function, product line with the state GB/T13927-92 pressure valve Test criteria

 

Second characteristics

.1he valve seal by three eccentric structure, butterfly valve seat and almost no wear plate with the concept of the tight sealing function.
2
Valve stainless steel production, a flexible metal seal and seal the dual advantages of both the low temperature and high temperature under all circumstances with excellent sealing properties with corrosion-resistant, long life and other characteristics.
3
the sealing surface of a plate of plate welding cobalt-based alloy, sealing surface wear resistance and long service life.
4
the board adopted specifications Butterfly Hang truss structure, high strength, flow area, flow resistance small.
5the valve seal is a two-way function, installation medium flows from the restrictions, but also from the position of space can be installed in any direction.

6can drive the Multi-Position (rotating 180 ° or 90 °) to install, easy to use

Third : Main technical parameters

Nominal diameter

DNmm)

502000

Nominal Pharmacological

PNMPa)

0.6

1.0

1.6

2.5

seal test (MPa)

0.66

1.1

1.76

2.75

Strength Test

0.9

1.5

2.4

3.75

Suitable temperature

 

Carbon Steel: -29 to 425 stainless steel: -40 to 650

Suitable media

Media applicable water, air, natural gas, oil and weak corrosive fluid

Leakage rate

 

GB/T13927-92 standards consistent with the leakage rate
Worm drive mode transmission, electrical, pneumatic, hydraulic

Leakage rate

 

Worm drive mode transmission, electrical, pneumatic, hydraulic


 

Fourth   main parts material

 

Parts name

Materials

body

WCB, alloy steel, stainless steel, QT450-10

Butterfly plate

 

WCB, alloy steel, stainless steel, QT450-10

Valve shaft

 

2Cr13 stainless steel, alloy steel

Seal ring

 

Stainless steel ring

Packing

 

Flexible Graphite

 

Fifth  Adopt standards

Manufacturing standards

JB/T 8527-97

Flange standard

GB9113-2000

GB12221 standard length of the structure

GB12221-89

Inspection standards

GB/T 13927-92

 

Sixth 、Inspection standards                            (unit :mm)

Nominal dimension

main dimension

Size specifications and the flange

1.0MPa

1.6MPa

2.5MPa

L

H1

H

D

D1

n-Фd

D

D1

n-Фd

D

D1

n-Фd

50

108

530

112

165

125

4-18

165

125

4-18

165

125

4-18

65

112

530

115

185

145

4-18

185

145

4-18

185

145

8-18

80

114

565

120

200

160

4-18

200

160

8-18

200

160

8-18

100

127

600

138

220

180

8-18

220

180

8-18

235

190

8-22

125

140

640

164

250

210

8-18

250

210

8-18

270

220

8-26

150

140

705

175

285

240

8-22

285

240

8-22

300

250

8-26

200

152

775

200

340

295

8-22

340

295

12-22

360

310

12-26

250

165

945

243

395

350

12-22

405

355

12-26

425

370

12-30

300

178

1070

250