14
0.01
0.05
1
0
5
0
1
5
100
500
0.1
0.5
0.1
1
10
0
0
0
0
1
0
0
0
1
0
0
1
0
1
Type D Double Interlock Preaction Trim installation on
Model DDX Deluge Valves uses eight tapped openings for
trim connections. Each opening and its function are indicated
on Fig. 2 or Fig. 3. Using Fig. 2 or Fig. 3 as reference, the
recommended trim installation is as follows:
1. Install
1
/
2
" nipple (#39, Fig. 2 or #42, Fig. 3) in tapped
opening marked “TEST.”
Note:
If interference occurs
between the supply gauge and the control valve, the
1
/
4
" plug (#57, Fig. 2 or #57, Fig. 3) in the opening
marked “SUPPLY” may be swapped with: the
1
/
4
"
nipple (#36, Fig. 2), angle valve (#12, Fig. 2) and
gauge (#73, Fig. 2) for the 2" (50 mm), 2-
1
/
2
" (65 mm),
76 mm and 3" (80 mm) valve sizes;
1
/
4
" nipple (#36,
Fig. 3),
1
/
4
" elbow (#27, Fig. 3),
1
/
4
" nipple (#37, Fig. 3),
3-way valve (#70, Fig. 3) and the gauge (#72, Fig. 3) for
the 4" (100 mm), 165 mm and 6" (150 mm) valve sizes;
1
/
4
" nipple (#37, Fig. 3), 3-way valve (#70, Fig. 3) and
the gauge (#72, Fig. 3) for the 8" (200 mm) valve size,
in the trim installed in the opening marked “TEST”.
2. Install
1
/
2
" nipple (#43, Fig. 2 or #38, Fig. 3) in tapped
opening marked “ALARM” and connect balance of this
trim line.
3. Install
1
/
4
" plug (#57, Fig. 2 or #57, Fig. 3) in tapped
opening marked “SUPPLY.”
Note:
If interference
occurs between the supply gauge and the control
valve, the
1
/
4
" plug (#57, Fig. 2 or #57, Fig. 3) in
the opening marked “SUPPLY” may be swapped
with: the
1
/
4
" nipple (#36, Fig. 2), angle valve (#12,
Fig. 2) and gauge (#73, Fig. 2) for the 2" (50 mm),
2-
1
/
2
" (65 mm), 76 mm and 3" (80 mm) valve sizes;
1
/
4
" nipple (#36, Fig. 3),
1
/
4
" elbow (#27, Fig. 3),
1
/
4
"
nipple (#37, Fig. 3), 3-way valve (#70, Fig. 3) and the
gauge (#72, Fig. 3) for the 4" (100 mm), 165 mm and
6" (150 mm) valve sizes;
1
/
4
" nipple (#37, Fig. 3),
3-way valve (#70, Fig. 3) and the gauge (#72, Fig. 3)
for the 8" (200 mm) valve size, in the trim installed in
the opening marked “TEST”.
4. Install
1
/
2
" nipple (#38, Fig. 2 or #38, Fig. 3) in tapped
opening marked “OUT” and connect balance of this trim
line.
5. Install
1
/
4
" inline check valve (#18, Fig. 2 or #17, Fig. 3)
in tapped opening marked “IN” and connect balance
of this trim line. Supply line must be connected to the
inlet of the control valve for each Deluge Valve as shown.
Caution:
Over tightening check valve can cause a
restriction in flow that may prevent the valve from
“setting up”.
6. Install 1-
1
/
4
" Nipple (#49, Fig. 2) or 2" nipple (#49, Fig. 3)
in tapped drain opening and connect balance of this trim
line.
7. Install
3
/
4
" x
1
/
4
" reducing bushing (#53, Fig. 2 or #53,
Fig. 3) in the lower-most tapped opening at the rear of
the Deluge Valve and connect the balance of this trim
line.
Fig. 6
MODEL DDX HYDRAULIC FRICTION LOSS GRAPH
FLOW RATE (L/Sec)
FLOW RATE (GPM)
PRESSURE L
OSS (PSI)
PRESSURE L
OSS (BAR)
2" (50
mm
)
2-
1
/
2
" (65
mm
) & 76
mm
3" (80
mm
)
4" (100
mm
)
6" (150
mm
) & 165
mm
8" (200
mm
)
2" (50
mm
)
2-
1
/
2
" (65
mm
) & 76
mm
3" (80
mm
)
4" (100
mm
)
6" (150
mm
) & 165
mm
8" (200
mm
)
Valve size
Cv Factor
Equivalent
legnth
of pipe
2" (50 mm)
101
4.4' (1.3 m)
2-
1
/
2
"
(65 mm)
236
6' (1.8 m)
76 mm
241
7.7' (2.3 m)
3" (80 mm)
254
12.6'
(3.8 m)
4" (100 m)
469
14.0'
(4.3 m)
6"
(150 mm)
886
29.4'
(9.0 m)
165 mm
886
29.4'
(9.0 m)
8"
(200 mm)
1516
53.5'
(16.3 m)
