Technical Data
Reliable Double Interlock Type D Preaction Systems, with
associated trim, size 2” (50 mm), 2½” (65 mm), 76 mm,
3” (80 mm), 4” (100 mm), 165 mm, 6” (150 mm), 8” (200
mm) are rated for use at minimum water supply pressure of
20 psi (1.4 bar) and maximum supply pressure of 250 psi
(17.2 bar) for 2” (50mm), 21/2” (65mm), 3” (80mm), 76mm
and 8” (200mm) valve sizes and 300 psi (20.7 bar) for 4”
(100mm), 6” (150mm) and 165mm valve sizes. Water sup-
plied to the inlet of the valve and to the pushrod chamber
must be maintained between 40°F (4°C) and 140°F (60°C).
The following list of technical bulletins pertains to valves
and devices that may be used in this preaction system:
Deluge Valve
Reliable 519
Hydraulic Emergency Station
(Model A)
Reliable 506
Mechanical Sprinkler Alarm
Reliable 612/613
Pressure Maintenance Device
Reliable 251
Nitrogen Regulating Device Reliable 254
Releasing/Control Panel
Potter #5403550
Low Air Pressure Supervisory Switch Potter 5400928
Waterflow Pressure Alarm Switch
Potter 5400928
Model DDX Deluge Valve Description
1. Rated working pressure:
Valve & System - 250 psi (17.2 bar) for 2” (50mm), 2
1
/
2
” (65mm),
3” (80mm), 76mm and 8” (200mm) valve sizes and 300 psi (20.7
bar) for 4” (100mm), 6” (150mm) and 165mm valve sizes.
2. Factory tested to a hydrostatic pressure of 500 psi (34.5 bar) for
2” (50mm), 2
1
/
2
” (65mm), 3” (80mm), 76mm and 8” (200mm)
valve sizes and 600 psi (41.7 bar) for 4” (100mm), 6” (150mm)
and 165mm valve sizes. (Valve only)
3. End and trim connections:
•
ANSI/AWWA C606 grooved inlet and outlet
Nominal Pipe
Size
Outlet Diam-
eter
Groove
Diameter
Groove
Width
Outlet Face
to Groove
2”
(50 mm)
2.375”
(60 mm)
2.250”
(57 mm)
11/32”
(9.0 mm)
5/8”
(16 mm)
2½”
(65 mm)
2.875”
(73 mm)
2.720”
(69 mm)
11/32”
(9.0 mm)
5/8”
(16 mm)
76 mm
3.000”
(76 mm)
2.845”
(72 mm)
11/32”
(9.0 mm)
5/8”
(16 mm)
3”
(80 mm)
3.500”
(89 mm)
3.344”
(85 mm)
11/32”
(9.0 mm)
5/8”
(16 mm)
4”
(100 mm)
4.500”
(114 mm)
4.334”
(110 mm)
3/8”
(9.5 mm)
5/8”
(16 mm)
165 mm
6.500”
(165 mm)
6.330”
(161 mm)
3/8”
(9.5 mm)
5/8”
(16 mm)
6”
(150 mm)
6.625”
(168 mm)
6.455”
(164 mm)
3/8”
(9.5 mm)
5/8”
(16 mm)
8”
(200 mm)
8.625”
(219 mm)
8.441”
(214 mm)
7/16”
(11 mm)
3/4”
(19 mm)
• Threaded openings Per ANSI B 2.1
• Flange Dimensions
Flange
Type:
Nominal
Pipe
Size
Bolt
Circle
Diameter
Bolt
Hole
Diameter
Flange
Outside
Diameter
Flange
Thick-
ness
Number
of
Bolts
ASME B16.5
Class 150
4”
(100mm)
7½”
(191mm)
¾”
(19mm)
9”
(229mm)
15
/
16
”
(24mm)
8
ISO 7005-2
PN16
4”
(100mm)
7
3
/
32
”
(180mm)
¾”
(19mm)
9”
(229mm)
15
/
16
”
(24mm)
8
ASME B16.5
Class 150
6”
(150mm)
9½”
(241mm)
7
/
8
”
(22mm)
11”
(279mm)
15
/
16
”
(24mm)
8
ISO 7005-2
PN16
6”
(150mm)
9
7
/
16
”
(240mm)
29
/
32
”
(23mm)
11”
(279mm)
15
/
16
”
(24mm)
8
ASME B16.5
Class 150
8”
(200mm)
11¾”
(298mm)
7
/
8
”
(22mm)
13½”
(343mm)
1”
(25.4mm)
8
ISO 7005-2
PN16
8”
(200mm)
11
5
/
8
”
(295mm)
29
/
32
”
(23mm)
13½”
(343mm)
1”
(25.4mm)
12
4. Valve Color:
Valve Size
Color
2” (50 mm)
Black or Red
2½” (65 mm)
Black or Red
76 mm
Red
3” (80 mm)
Black or Red
4” (100 mm)
Black or Red
165 mm
Red
6” (150 mm)
Black or Red
8” (200 mm)
Black or Red
5. Face to face dimensions:
Valve Size:
End
Connection:
End to End:
2" (50mm), 2½" (65mm),
76mm & 3" (80mm)
Groove/ Groove
12½" (318mm)
4" (100mm)
Groove/ Groove
14" (356mm)
Flange/ Groove
16" (406mm)
Flange/ Flange
16" (406mm)
6" (150mm) & 165mm
Groove/ Groove
16" (406mm)
Flange/ Groove
19" (483mm)
Flange/ Flange
19" (483mm)
8" (200mm)
Groove/ Groove
19
3
/
8
” (492mm)
Flange/ Flange
21¼" (540mm)
6. Valve shipping weight:
Valve Size:
End Connection:
Weight:
2" (50mm), 2½" (65mm),
76mm & 3" (80mm)
Groove/ Groove
34 lbs (15 kg)
4" (100mm)
Groove/ Groove
64 lbs (29 kg
Flange/ Groove
79 lbs (36 kg)
Flange/ Flange
92 lbs (42 kg)
6" (150mm) & 165mm
Groove/ Groove
95 lbs (43 kg)
Flange/ Groove
122 lbs (56 kg)
Flange/ Flange
138 lbs (69 kg)
8" (200mm)
Groove/ Groove
148 lbs (67 kg)
Flange/ Flange
197 lbs (90 kg)
7. Trim shipping weight:
Trim Configuration
2” (50 mm),
2½” (65 mm),
3” (80 mm)
& 76 mm
4” (100 mm),
6” (150 mm),
8” (200 mm)
& 165 mm
Type D Double Interlock
47 lbs (21 kg)
52 lbs (24 kg)
8.
Summary of Contents for DDX
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