3
INTRODUCTION
The following instructions are a guide for proper installation of Victaulic Series 758 Preaction Valves. These instructions
involve pipe that is properly prepared and grooved in accordance with current Victaulic specifications.
TRIM DIMENSIONS
NOTE:
The drawings below show a 4-inch (100-mm) configuration.
VALVE SIZE
Dimensions
inches/mm
Aprx. Weight Each
lbs./kg
Nominal
Outside
Dia.
in./
(mm)
Actual
Outside
Dia.
in./
(mm)
Without Trim
With Trim
A
B
C
D
E
F
G
H
I
Flanged Grooved Flanged Grooved
GROOVED
✕
GROOVED
1
¹⁄₂
1.900
9.00
32.00
13.00
18.00
13.00
10.00
7.00
4.00
4.00
–
16.7
–
43.0
40
48,3
228,60
813
330
457
330
254
178
102
102
–
7,6
–
19,5
2
2.375
9.00
32.00
13.00
18.00
13.00
10.00
7.00
4.00
4.00
–
17.0
–
43.0
50
60,3
228,60
813
330
457
330
254
178
102
102
–
7,7
–
19,5
2
¹⁄₂
2.875
12.61
33.00
14.00
20.00
15.50
11.50
7.50
5.00
5.00
–
41.2
–
65.0
65
73,0
320,29
838
356
508
393
292
191
127
127
–
18,7
–
29,5
76,1 mm
3.000
12.61
33.00
14.00
20.00
15.50
11.50
7.50
5.00
5.00
–
41.2
–
65.0
76,1
320,29
838
356
508
394
292
191
127
127
–
18,7
–
29,5
3
3.500
12.61
33.00
14.00
20.00
15.50
11.50
7.50
5.00
5.00
–
42.1
–
65.0
80
88,9
320,29
838
356
508
394
292
191
127
127
–
19,1
–
29,5
4
4.500
15.03
31.00
15.00
21.00
15.00
12.00
8.00
9.00
6.00
–
55.0
–
95.0
100
114,3
381,76
787
381
533
381
305
203
229
152
–
24,9
–
43,1
6
6.625
16.00
30.00
16.00
22.00
14.00
12.00
8.50
7.00
7.00
–
73.0
–
115.0
150
168,3
406,40
762
406
559
356
305
216
178
178
–
33,1
–
52,2
165,1 mm
6.500
16.00
30.00
16.00
22.00
14.00
12.00
8.50
7.00
7.00
–
73.0
–
115.0
165,1
406,40
762
406
559
356
305
216
178
178
–
33,1
–
52,2
8
8.625
17.50
30.00
16.00
23.00
16.00
12.00
14.00
9.50
7.00
–
142.0
–
182.0
200
219,1
444,50
762
406
584
406
305
356
241
178
–
64,4
–
82,6
GROOVED
✕
FLANGED
4
4.500
15.64
31.00
15.00
21.00
14.00
12.00
8.00
9.00
6.00
65.0
–
105.0
–
100
114,3
397,26
787
356
533
356
305
203
229
152
29,5
–
47,6
–
6
6.625
16.94
30.00
16.00
22.00
14.00
12.00
8.50
7.00
7.00
83.0
–
125.0
–
150
168,3
430,28
762
406
559
356
305
216
178
178
37,6
–
56,7
–
165,1 mm
6.500
16.94
30.00
16.00
22.00
14.00
12.00
8.50
7.00
7.00
83.0
–
125.0
–
165,1
430,28
762
406
559
356
305
216
178
178
37,6
–
56,7
–
8
8.625
19.27
30.00
16.00
23.00
16.00
12.00
14.00
9.50
7.00
155.0
–
195.0
–
200
219,1
489,46
762
406
584
406
305
356
241
178
70,3
–
88,5
–
D
B
A
H
E
F
C
G
I
NOTE:
An optional Series 746 Dry Accel-
erator assembly adds approximately 13.5"
(342,9 mm) onto the top of the Series
79N Electric/Pneumatic Actuator.
DISCONTINUED
PRODUCT
