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NOMENCLATURE OF DETAILS

1

WHEEL AND BUSHING

2

RUBBER TUBE

3

SUPPORT

4

HEXAGON NUT

5

WASHER

6

PLUG

7

HEXAGON BOLT

8

DIAPHRAGM

9

GUIDE PIN

10

"V" GASKET

11

HEXAGON NUT

12

VALVE BODY

13

CLAMPING

14

WASHER

15

HEXAGON BOLT

16

HEXAGON NUT

17

WASHER

18

HEXAGON BOLT

19

COVER

20

SPRINGS

21

CYLINDER

22

PISTON, DRIVE PIN, GUIDE PIN

23

"V" GASKET

24

BRONZE NUT

25

WHEEL BUSHING

OVERALL DIMENSIONS

Ø

A

B

C

D

E

F

G

H

I

L

M

N

20

382.5

330

128

14

180

75

105

14

4

138

19

110

25

387.5

330

128

14

180

85

115

14

4

138

19

110

30

450

380

145

15

200

100

140

18

4

155

20

130

40

525

450

162

15

215

110

150

18

4

172

20

130

50

552.5

470

186

18

250

125

165

18

4

196

23

175

60

592.5

500

217

18

265

145

185

18

4

227

23

210

75

700

600

255

20

285

160

200

18

4

265

25

210

100

820

710

307

22

335

180

220

18

8

317

27

255

125

925

800

355

22

380

210

250

18

8

365

27

300

150

1012.5

870

407

25

405

240

285

22

8

417

30

360

200

1300

1130

520

26

450

295

340

22

8

530

31

420

D. N

P.N Kg/cm2

HYDRAULIC TEST Kg/cm2

WORK PRESSURE Kg/cm2

OPEN

CLOSED

20

4.5

15

4.5

4

25

4.5

15

4.5

4

30

4.5

15

4.5

4

40

4.5

15

4.5

4

50

4

15

4

3

60

4

15

4

3

75

4

15

4

3

100

3.5

15

3.5

2.5

125

3.5

13

3.5

2.5

150

3

13

3

2

200

2.5

13

2.5

1.5

WEIGHTS in Kg

Ø

CAST IRON

LINED CAST IRON

20

7.800

8.000

25

8.500

8.500

30

12.400

12.500

40

14.000

14.500

50

19.500

20.500

60

26.000

27.000

75

34.000

35.000

100

54.500

55.500

125

76.000

77.000

150

94.000

96.000

200

185.000

187.000

WORK PRESSURE
PNEUMATIC OPERATED VALVES

D.N

20

25

30

40

50

60

75

100

125

150

200

MIN Kg/cm2

4

4

4

4

4

4

3.5

3.5

3

3

2.5

MAX Kg/cm2

6

6

6

6

6

6

5

5

5

4

4