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Right angle bellows globe valve


Product overview: WJ44H

Design standard: EN 12516

Structure length: EN 558

Connecting flange: EN 1092-1

Test and inspection: EN 12266

Valve body material: GS-C25 / CF8 / CF8M / CF3 / CF3M / WC6 / WC9

Nominal diameter: DN15-DN350

Nominal pressure: PN1.6Mpa-10.0 MPa

Applicable media: steam, heat transfer oil, hot and cold water, molten salt, other chemical media, etc

Application Industry: petroleum, chemical industry, electric power, pharmaceutical, metallurgy, new energy and other industries


PRODUCT OVERVIEW

The inlet and outlet channels of the right angle bellows stop valve are not in the same direction and form a 90 ° right angle. When the fluid passes through the valve, it will change the fluid direction and be installed at the corner of the pipeline system, which not only saves 90 degree elbow, but also facilitates operation. It is an ideal valve installed on the boiler steam pipeline. Using the bellows as the valve stem sealing element can make the valve stem leak free and prevent steam leakage. No fluid loss, improved energy efficiency, increased safety of production equipment, reduced maintenance costs and frequent maintenance, reduced operating costs, and provided a clean and safe working environment.


PRODUCT FEATURES

1. The outlet of the right angle bellows stop valve is 90 degree right angle, which is suitable for installation at the corner of the pipeline system, which can not only save 90 degree elbow, save material and space, but also facilitate operation.

2. The valve body adopts German coated sand casting technology, which greatly improves the surface finish and mechanical properties of the valve body, reduces the occurrence of pores, sand holes and cracks, and enhances the tensile strength of the casting.

3. When the valve is closed, the conical sealing surface with "scraping effect" can automatically remove surface impurities, which can ensure reliable sealing and longer service life of the valve disc.

4. Double sealing design (bellows + packing), in line with international sealing standards.

5. All bellows pass helium test and all valves pass standard test to ensure zero leakage.

6. Products above DN150 are equipped with special devices to effectively prevent the valve from shaking, noise and internal parts damage during use, and the service life is effectively increased by more than 150%.

7. Various valve disc designs can be provided according to working conditions, such as throttling valve disc, stop check valve disc, etc.


MAIN TECHNICAL PARAMETERS

Nominal pressure(MPa)

Shell test pressure(MPa)

Sealing test pressure(MPa)

Applicable temperature(℃)

Use media

1.6

2.4

1.76

≤350℃

Water, steam, oil, etc

2.5

3.75

2.75

4.0

6.0

4.4

6.4

9.6

7.04


MATERIAL OF MAIN PARTS

Valve disc

Part name

Texture of material

valve body

GS-C25、1.4301、1.4408

valve seat

1.4301、Stellite 

Valve disc

1.4021、1.4401

Pin

1.4301、1.4401

Valve stem

1.4201、1.4401

Bellows assembly

1.4021、1.4401

shim

Flexible graphite + stainless steel

Valve cover

GS-C25、1.4301、1.4408

Nut

ASTM 194-2H、A194-8

Stud bolt

ASTM 194-B7、A193-B8

filler

Flexible graphite

Gland

1C25、1.4401

Positioning piece

1C25

Stem nut

Copper alloy、D2、BL2

handwheel

1025/KTH330

Combined cap

1C45


MAIN CONNECTION DIMENSIONS(PN1.6MPa)

Pressure class

PN16

caliber

15

20

25

32

40

50

65

80

100

125

150

200

250

300

350

L

130

150

160

180

200

230

290

310

350

400

480

600

730

850

980

H

166

166

172

175

193

195

213

227

294

325

355

440

580

620

785

W

120

140

140

180

200

220

260

280

300

340

400

450

450

500

500

weight(kg)

4

5

6

10

13

18

25

30

40

50

100

180

300

450

670



MAIN CONNECTION DIMENSIONS(PN2.5MPa)

Pressure class

PN25

口径

15

20

25

32

40

50

65

80

100

125

150

200

250

300

350

L

130

150

160

180

200

230

290

310

350

400

480

600

730

850

980

H

166

166

172

175

193

195

213

227

294

325

355

440

580

620

785

W

120

140

140

180

200

220

260

280

300

340

400

450

450

500

500

Weight(kg)

4

5

6

11

14

19

27

32

43

53

110

200

330

480

700


MAIN CONNECTION DIMENSIONS(PN4.0MPa)

Pressure class

PN40

caliber

15

20

25

32

40

50

65

80

100

125

150

200

250

300

350

L

130

150

160

180

200

230

290

310

350

400

480

600

730

850

980

H

166

166

172

175

193

195

213

227

294

325

355

440

580

620

785

W

120

140

140

180

200

220

260

280

300

340

400

450

450

500

500

Weight(kg)

4

5

6

11

14

20

28

33

45

55

120

210

350

500

730

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