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Globe Valve Bellows Seal acc to DIN
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Purpose:
Gate valve with bellow seal acc.to ANSI is applicable to the cutting and connection of pipelines medlum that are used in various indus-tries such as peroleum,chemical industry,pharmacy.chemical fertilizer,electric power industry etc under nominal pressure of CLASS150-1500LBS and working temperature of-29-350.

Structural features:
1.This product has logical structure.reliable seal.excellent performance and nice design.
2.The seal surface is build-up welding with Co hard alloy,which is attrition-resistant,corrosion-resistant,has good friction resistant and long life.
3.The stem is quenched and tempered.and its surface is treated by nitriding treatment,thus it has good corrosion resistant and friction resistant.
4.It has double seal capability.thus is more reliable.
5.The stem may show the position of lift,thus it is chearer.
6.The part material,flange and butt weld end dimension may be selected accordng to current operating condition and users'requirement,so that meet the requirements of various engineering.

Technical specification

Structural formation: BB-BG-OS&Y

Driving manner: Hand-operated   Electric-actuated

Design standard: DIN3356

Face to face: DIN3202

Flange ends: DIN2543-2545

Test & inspection: DIN3230

Notes: The size of serial, valve connecting flange can be design according to customers requirement,

Products performance specification

Nominal pressure(MPa)

Shell test(MPa)

Sealing test(MPa)

Suitable temp.()

Suitable medium

1.6

2.4

1.76

350

Water oil & gas

2.5

3.75

2.75

4.0

6.0

4.4

6.4

9.6

7.04

 

 

Main parts materials

NO.

Part name

Material

1

Body

GS-C25  1.73631.43081.44081.43061.4301

2

Disc

ASTM A182-Gr.F6a ASTM A182-F22      ASTM A182-F304F316F321F304LF316L

3

Pin

ASTM A182-Gr.F6a ASTM A182-F22      ASTM A182-F304F316F321F304LF316L

4

Bellow assemble

1Cr18Ni9Ti304316

5

Stem

ASTM A182-Gr.F6a ASTM A182-F22      ASTM A182-F304F316F321F304LF316L

6

Bonnet

GS-C25  1.73631.43081.44081.43061.4301

7

Packing

Flexible graphitePTFE

8

Gland

GS-C25  1.73631.43081.44081.43061.4301

9

Guide piece

2545304316

10

Yoke nut

ZQA19-4

11

Hand wheel

WCBQT400-18

12

Bolt

ASTM A193-B7A193-B8A193-B8M

13

Nut

ASTM A194-2HA194-8A194-8M

14

Gasket

Flexible graphite + stainless steelPTFE

 

 

Main dimension and weight

Model

LFDWJ41-16

Pressure

PN16

Size

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

195

200

220

225

235

250

260

265

370

400

515

550

600

630

680

W

120

140

140

160

160

180

200

220

250

300

350

400

450

500

500

Weight

4

4.5

5

7

9

12.5

18

23

41

54

90

160

260

410

610

 

Model

LFDWJ41-25

Pressure

PN25

Size

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

195

200

220

225

235

250

260

265

370

400

515

550

600

630

680

W

120

120

140

160

160

180

200

220

250

300

350

400

450

500

500

Weight

4

4.5

5

7.5

9.5

13

19

24

43

57

95

168

300

510

680

 

Model

LFDWJ41-40

Pressure

PN40

Size

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

195

200

220

225

235

250

260

265

370

400

515

550

600

630

680

W

120

120

140

160

160

180

200

220

250

300

350

400

450

500

500

Weight

4

4.5

5

8

10

13.5

20

25

45

60

98

171

340

580

780

If you have any enquiry about quotation or cooperation, please feel free to email us at sales@aran-valve.com or use the following enquiry form. Our sales representative will contact you within 24 hours. Thank you for your interest in our products.

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