I-768N
/ Series 768N FireLock NXT
™
Dry Valve
/ Installation, Maintenance, and Testing Manual
TRIM DIMENSIONS
A 4-INCH/114.3-MM FIRELOCK NXT™ DRY VALVE IS SHOWN BELOW
1 1/2 – 2-INCH/48.3 – 60.3-MM CONFIGURATIONS CONTAIN 3/4-INCH/19-MM DRAIN VALVES
2 1/2 – 3-INCH/73.0 – 88.9-MM CONFIGURATIONS CONTAIN 1 1/4-INCH/31-MM DRAIN VALVES
4 – 8-INCH/114.3 – 219.1-MM CONFIGURATIONS CONTAIN 2-INCH/50-MM DRAIN VALVES
C
Full Open
K
E
G
H
A
D
D1
F
B
A1
NOTES:
The “A” dimension is the actual takeout dimension of the valve body.
The “A1” dimension is the actual takeout dimension of the valve body with water supply main control valve.
For systems with the optional Series 746-LPA Dry Accelerator, add 11.50 inches/292 mm to the “B” dimension to account for the additional height.
The “D” and “D1” dimensions are not fixed measurements. The drip cup can be rotated to provide more clearance at the back of the trim.
Components shown as dotted lines denote optional equipment.
The recommended drain connection kit (shaded in orange) is for reference and takeout dimensions. This drain connection comes standard when the VQR
assembly is ordered.
Nominal
Size
inches
or mm
Dimensions – inches/mm
Approx Weight Each
lbs/kg
A
A1
B
C
D
D1
E
F
G
H
K
Without
Trim
With
Trim
1 ½
9.00
16.37
32.75
9.25
16.50
11.00
9.25
3.25
10.25
22.50
6.00
16.7
43.0
228.60
415.80
832
235
419
279
235
83
260
572
152
7.6
19.5
2
9.00
13.83
32.75
9.25
17.50
11.00
9.25
3.25
10.25
22.50
6.00
17.0
43.0
228.60
351.28
832
235
445
279
235
83
260
572
152
7.7
19.5
2 ½
12.61
16.51
34.50
11.25
20.00
12.50
9.75
4.00
9.75
24.75
6.50
41.0
65.0
320.29
419.35
876
286
508
318
248
102
248
629
165
18.7
29.5
76.1 mm
12.61
16.51
34.50
11.25
20.00
12.50
9.75
4.00
9.75
24.75
6.50
41.0
65.0
320.29
419.35
876
286
508
318
248
102
248
629
165
18.7
29.5
3
12.61
16.51
34.50
11.25
20.00
12.50
9.75
4.00
9.75
24.75
6.50
41.0
65.0
320.29
419.35
876
286
508
318
248
102
248
629
165
18.7
29.5
4
15.03
19.85
35.25
13.50
22.25
13.50
11.00
4.75
8.50
26.75
8.00
59.0
95.0
381.76
504.19
895
343
565
343
279
121
216
680
203
26.7
43.0
165.1 mm
16.00
22.13
36.25
14.00
24.50
13.25
11.25
4.50
8.25
28.00
8.25
80.0
116.0
406.40
562.10
921
356
622
337
286
114
210
711
210
36.2
52.6
6
16.00
22.13
36.25
14.00
24.50
13.25
11.25
4.50
8.25
28.00
8.25
80.0
116.0
406.40
562.10
921
356
622
337
286
114
210
711
210
36.2
52.6
8
17.50
23.02
38.00
14.75
27.00
13.50
12.25
4.75
8.25
29.75
9.25
122.0
158.0
444.50
584.71
965
375
686
343
311
121
210
756
235
55.3
71.6
I-768N_6
REV_C
