Specifications

26.
ing of the valve handle to the ON position. As an alternative
to the Model B Hydraulic Manual Emergency Station, the
Model A Hydraulic Manual Emergency Pull Box (see Bulletin
506) is also available and can be provided as an option.
Model F1-FTR fixed temperature pilot line detectors and
spacing requirements are described in Bulletin 180.
Maintenance
Reliable Single Interlock Preaction Systems and associat-
ed equipment shall periodically be given a thorough inspec-
tion and test. NFPA 25, Inspection, Testing and Maintenance
of Water Based Fire Protection Systems, provides minimum
maintenance requirements. System components shall be
tested, operated, cleaned, and inspected at least annually,
and parts replaced as required.
Wet Pilot Line Single Interlock Preaction Trim
Wet pilot line single interlock preaction trim operation is a
simple method of Deluge Valve Actuation. The trim contains
components such as a one and one quarter main drain on
2” (50 mm), 2½” (65 mm), 76 mm and 3” (80 mm) valve
sizes or a two inch main drain on 4” (100 mm), 165 mm,
6” (150 mm) and 8” (200 mm) valve sizes, alarm test, sup-
ply and push rod chamber pressure gauges, and push rod
chamber connections. The wet pilot line consists of a line
of closed detectors (Model F1-FTR) located over the area to
be protected. This line contains water under pressure and is
connected to the outlet of the push rod chamber of the Del-
uge Valve. When one of the pilot line detectors actuates, the
push rod chamber is vented and the Deluge Valve operates.
The Deluge Valve can also be operated manually by open-
ing the ball valve of the Model B Hydraulic Manual Emergen-
cy Station (see Fig. 12) or the optional Model A Hydraulic
Manual Emergency Pull Box (see Reliable Bulletin 506).
The wet pilot line is only a detection system and does not
contribute to controlling the fire. Its installation is subject to
the following restrictions:
a) It is not to be installed in an area subject to freez-
ing.
b) It is not to be installed in an area where tempera-
tures in excess of 150°F (65°C) are anticipated.
c) NFPA 72 or the authority having jurisdiction
should be consulted for spacing and elevation
requirements.
d) Maximum wet pilot line length and height must
comply with data provided in Fig. 2.
Wet Pilot Trim installation on Model DDX Deluge Valves
uses eight tapped openings for trim connections. Each
opening and its function are indicated on Fig. 3 or Fig. 4.
Using Fig. 3 or Fig. 4 as reference, the recommended trim
installation is as follows:
1. Install ½” nipple (#35, Fig. 3 or #37, Fig. 4) in the tapped
opening marked “TEST”. Note: If interference occurs
between the supply gauge and the control valve, the
1/4” plug (#52, Fig. 3 or #52, Fig. 4) in the opening
marked “SUPPLY” may be swapped with: the 1/4”
nipple (#33, Fig. 3), angle valve (#9, Fig. 3) and gauge
(#67, Fig. 3) for the 2” (50mm), 2-1/2” (65mm), 76mm
and 3” (80mm) valve sizes; 1/4” nipple (#32, Fig. 4),
1/4” elbow (#23, Fig. 4), 1/4” nipple (#33, Fig. 4), 3-way
valve (#64, Fig. 4) and the gauge (#66, Fig. 4) for the
4” (100mm), 165mm and 6” (150mm) valve sizes;
1/4” nipple (#33, Fig. 4), 3-way valve (#64, Fig. 4) and
the gauge (#66, Fig. 4) for the 8” (200mm) valve size,
in the trim installed in the opening marked “TEST”.
2. Install ½” nipple (#38, Fig. 3 or #34, Fig. 4) in the tapped
opening marked “ALARM” and connect balance of this
trim line.
3. Install ¼” plug (#52, Fig. 3 or #52, Fig. 4) in the tapped
opening marked “SUPPLY.” Note: If interference oc-
curs between the supply gauge and the control
valve, the 1/4” plug (#52, Fig. 3 or #52, Fig. 4) in the
opening marked “SUPPLY” may be swapped with:
the 1/4” nipple (#33, Fig. 3), angle valve (#9, Fig. 3)
and gauge (#67, Fig. 3) for the 2” (50mm), 2-1/2”
(65mm), 76mm and 3” (80mm) valve sizes; 1/4” nip-
ple (#32, Fig. 4), 1/4” elbow (#23, Fig. 4), 1/4” nipple
(#33, Fig. 4), 3-way valve (#64, Fig. 4) and the gauge
(#66, Fig. 4) for the 4” (100mm), 165mm and 6”
(150mm) valve sizes; 1/4” nipple (#33, Fig. 4), 3-way
valve (#64, Fig. 4) and the gauge (#66, Fig. 4) for the
8” (200mm) valve size, in the trim installed in the
opening marked “TEST”.
4. Install ½” nipple (#34, Fig. 3 or #34, Fig. 4) in the tapped
opening marked “OUT” and connect balance of this
trim line.
5. Install ¼” inline check valve (#15, Fig. 3 or #14, Fig. 4) in
the tapped opening marked “IN” and connect balance
of this trim line. Caution: Over tightening check valve
can cause a restriction in flow that may prevent the valve
from “setting up”.
6. Install 1¼” Nipple (#44, Fig. 3) or 2” nipple (#44, Fig.
4) in the tapped drain opening and connect balance of
this trim line.
7. Install ¾ x ¼ reducing coupling (#48, Fig. 3 or #48, Fig.
4) in the lower-most tapped opening at the rear of the
Deluge Valve and connect the balance of this trim line.
8. Install ¾” nipple (#40, Fig. 3 or #39, Fig. 4) in the upper-
most tapped opening at the rear of the Deluge Valve
and connect the balance of this trim line.
Electric Actuation Single Interlock Preaction
Trim
Electric Actuation trim (see Figures 5 and 6) combines a
normally closed/powered-open solenoid valve with the Wet
Pilot Line Single Interlock Preaction Trim for releasing the
Deluge Valve. The solenoid valve used in the assembly is
available in either a 175 psi (12,1 bar) or 300 psi (20,7 bar)
rating.
Note:
In order for the solenoid valve to maintain Reliable’s war-
ranty it must remain sealed as it came from the factory. If
there are concerns about the valve’s internal components,
immediate replacement is recommended.
Electric Actuation Trim installation on Model DDX Deluge
Valves uses eight tapped openings for trim connections.
Each opening and its function are indicated on Fig. 5 or Fig.
6. Using Fig. 5 or Fig. 6 as reference, the recommended trim
installation is as follows: