Manual Type

Pneumatic Type

GS7

Often a valve is required which under normal conditions is closed and perfectly tigh but, if necessary, it could be opened remote control: pinch valve G.S.7 meets these requirements since it features the automatic spring closing system and double control (handwheel and hydropneumatic cylinder) for the opening system.

DETAILS

1

WHEEL AND BUSHING

2

SUPPORTING RING

3

GUIDE PIN

4

HEXAGON NUT

5

WASHER

6

UPPER PLUG

7

TIE ROD

8

RUBBER SLEEVE

9

SMALL "V" GASKET

10

RUBBER TUBE

11

RETURN BUSHING BRONZE

12

VALVE BODY

13

HEXAGON NUT

14

WASHER

15

HEXAGON BOLT

16

HEXAGON NUT

17

WASHER

18

HEXAGON BOLT

19

COVER

20

SPRINGS

21

CYLINDER AND SUPPORT

22

PISTON PIN AND LEAD SKREW

23

"V" GASKET

24

LOWER PLUG

25

CLAMPING SCREW FOR BUSHING

26

WASHER

27

CLAMPING

PRESSURE DETAILS UNI_1284

DN

P.N.

HYDRAULIC TEST Kg/cm2

WORKING PRESSURE Kg/cm2

OPEN

CLOSED

20

4,5

10

4,5

4

25

4,5

10

4,5

4

30

4,5

10

4,5

4

40

4,5

10

4,5

4

50

4,5

10

4,5

4

60

4

10

4

3

70

4

10

4

3

80

3,5

10

3,5

3




AIR PRESSURE REQUIRED KG/CM2 (MODEL GS7)

DN

20

25

30

40

50

60

70

80

MIN.

4

4

4

4

4

4

4

4

MAX.

6

6

6

5

5

5

5

5




AIR PRESSURE REQUIRED KG/CM2 (MODEL GS7A)

DN

100

125

150

175

200

MIN.

4

4

4

4

4

MAX.

6

6

6

6

6




DIMENSIONS

Ø

A

B

G

H

I

20

355

302,5

107

95

58

25

440

382,5

118

106

68

30

450

380

130

115

78

40

535

460

154

140

88

50

565

482,5

176

160

102

60

600

507,5

194

180

130

70

670

577,5

206

190

137

80

720

620

215

196

148

100

850

740

275

260

158

125

1000

875

300

280

198

150

1200

1058

330

300

222

200

1500

1330

375

350

298




WEIGHT KG

ALLUMINIUM

C.I.

4,000

5,2000

6,500

8,000

8,000

11,000

11,500

15,000

14,000

19,000

18,000

25,000

22,000

28,000

25,000

33,000

32,000

38,000

45,000

54,000

54,000

66,000

81,000

95,000

DETAILS

1

WHEEL AND BUSHING

2

SUPPORTING RING

3

GUIDE PIN

4

HEXAGON NUT

5

WASHER

6

UPPER PLUG

7

TIE ROD

8

RUBBER SLEEVE

9

SMALL "V" GASKET

10

RUBBER TUBE

11

RETURN BUSHING BRONZE

12

VALVE BODY

13

HEXAGON NUT

14

WASHER

15

HEXAGON BOLT

16

HEXAGON NUT

17

WASHER

18

HEXAGON BOLT

19

COVER

20

SPRINGS

21

CYLINDER AND SUPPORT

22

PISTON PIN AND LEAD SKREW

23

"V" GASKET

24

LOWER PLUG

25

CLAMPING SCREW FOR BUSHING

26

WASHER

27

CLAMPING