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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, PIN AND LEAD SCREW

23

"V" GASKET

24

HEXAGON NUT

25

REGOLATOR WHEEL

26

BUSHING

27

WHEEL

28

WITH


OVERALL DIMENSIONS

Ø

A

B

C

D

E

F

G

H

I

L

M

N

20

412.5

360

128

14

180

75

105

14

4

138

19

110

25

417.5

360

128

14

180

85

115

14

4

138

19

110

30

480

410

145

15

200

100

140

18

4

155

20

130

40

525

450

162

15

215

110

150

18

4

172

20

130

50

602.5

520

186

18

250

125

165

18

4

196

23

175

60

682.5

590

217

18

265

145

185

18

4

227

23

210

75

720

620

255

20

285

160

200

18

4

265

25

210

100

890

780

307

22

335

180

220

18

8

317

27

255

125

1085

960

355

22

380

210

250

18

8

365

27

300

150

1132.5

990

407

25

405

240

285

22

8

417

30

360

200

1470

1300

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

4.5

3

60

4

15

4.5

3

75

4

15

4.5

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

8.400

8.500

25

8.700

8.800

30

12.700

12.800

40

14.300

14.800

50

20.000

21.000

60

26.600

27.600

75

34.800

35.800

100

55.500

56.500

125

77.000

78.000

150

95.300

97.300

200

187.000

189.000


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