Manual Type
- GS51 DIN FB REG
- GS51 DIN HW
- GS51 DIN REG
- GS51 FB REG
- GS51 HW
- GS51 REG
- GS51 SW REG
- GS55 FB REG
- GS55 HW
- GS55 REG
Pneumatic Type
GS53 HW

These valves, of the guided flow type, are normally closed and are opened by a hydropneumatic cylinder with spring return.
The valve body and the diaphragm can be supplied, to customer’s specifications, in the materials most suitable for facilitating flow of the various liquids.
This model is fitted with a closing handwheel.


DETAILS |
|
---|---|
1 |
WHEEL AND BUSHING |
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 |
AIR
PRESSURE REQUIRED KG/CM2 |
|||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
DN |
20 |
25 |
30 |
40 |
50 |
60 |
75 |
100 |
125 |
150 |
200 |
MIN. |
4 |
4 |
4 |
4 |
4 |
4 |
3.5 |
3.5 |
3 |
3 |
2.5 |
MAX. |
6 |
6 |
6 |
6 |
6 |
6 |
5 |
5 |
5 |
4 |
4 |
PRESSURE DETAILS UNI_1284 |
DN |
P.N. |
HYDRAULIC TEST Kg/cm2 |
WORKING 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 |
DIMENSIONS C.I. UNLINED |
||||
---|---|---|---|---|
Ø |
B |
C |
G(UNI) |
G(ASA) |
20 |
330 |
117 |
105 |
98 |
25 |
330 |
127 |
115 |
108 |
30 |
380 |
146 |
140 |
118 |
40 |
450 |
159 |
150 |
127 |
50 |
470 |
190 |
165 |
152 |
60 |
500 |
217 |
185 |
178 |
75 |
600 |
254 |
200 |
190 |
100 |
710 |
305 |
220 |
229 |
125 |
800 |
356 |
250 |
254 |
150 |
870 |
406 |
285 |
280 |
200 |
1130 |
520 |
340 |
343 |
DIMENSIONS C.I. EBONITE LINED |
||||
---|---|---|---|---|
Ø |
B |
C |
G(UNI) |
G(ASA) |
20 |
330 |
123 |
105 |
98 |
25 |
330 |
133 |
115 |
108 |
30 |
380 |
152 |
140 |
118 |
40 |
450 |
165 |
150 |
127 |
50 |
470 |
196 |
165 |
152 |
60 |
500 |
227 |
185 |
178 |
75 |
600 |
260 |
200 |
190 |
100 |
710 |
313 |
220 |
229 |
125 |
800 |
364 |
250 |
254 |
150 |
870 |
414 |
285 |
280 |
200 |
1130 |
530 |
340 |
343 |
WEIGHT KG |
|
---|---|
C.I. UNLINED |
C.I. EBONITE LINED |
7,800 |
8,000 |
8,500 |
8,500 |
12,400 |
12,500 |
14,000 |
14,500 |
19,500 |
20,500 |
26,000 |
27,000 |
34,000 |
35,000 |
54,500 |
55,500 |
76,000 |
77,000 |
94,000 |
96,000 |
185,000 |
187,000 |


DETAILS |
|
---|---|
1 |
WHEEL AND BUSHING |
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 |