Reliable Single Interlock Preaction System Instructions For Installation Manual Download

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Technical Data

Reliable Single Interlock Preaction Systems, with asso-

ciated trim, sizes 4” (100mm), 6” (150mm) and 165mm
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). Water supplied 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:

Valve Description

1. Rated working pressure:

Valve & System - 175 psi (12,1 bar)

2. Factory tested to a hydrostatic pressure of 500 psi

(34,5 bar). (Valve only)

3. End and trim connections:

•

ANSI/AWWA C606 grooved inlet and outlet

•

Threaded openings Per ANSI B 2.1

4. Face to face dimensions:

•

4" (100 mm) — 14” (355 mm)

•

6" (150 mm) & 165 mm — 16” (406 mm)

5. Shipping weight:

6. Friction loss (Expressed in equivalent length of

Schedule 40 pipe, based on Hazen & Williams

Maintenance

Reliable Single Interlock Preaction Systems and asso-

ciated equipment shall periodically be given a thorough
inspection 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 in-
spected at least annually, and parts replaced as re-
quired.

Resetting the Single Interlock Preaction
System

Refer to Figs. 2,

6, and 7.

Close the main valve controlling water supply (Fig.
7) to the Deluge Valve and close off the air supply to
the sprinkler system at the air supply’s source.

Close the pushrod chamber supply valve, valve A
(Fig. 7).

3. Open the

main drain valve, valve B (Fig. 7), and

drain system.

4. Open

all drain valves and vents at low points

throughout the system, closing them when flow of
water has stopped. Open valve D (Fig. 7).

Note:

The above steps accomplish the relieving of

pres-

sure in the pushrod chamber of the Deluge

Valve.

With Valve F (Fig. 7) open, push in the plunger of ball
drip valve, valve G (Fig. 7), to force the ball from its
seat, and drain any water in the alarm line.

6. With the Model B Manual Emergency Station, valve

D (Fig. 7

), open, push in and rotate the deluge

valve’s external reset knob

(#38, Fig. 6

) clockwise

until you hear a distinct clicking noise, indicating that
the clapper has closed.

Note:

The reset knob can

be rotated only after pressure in the pushrod cham-
ber has been reduced to atmospheric conditions (0
psig).

Inspect and replace any portion of the sprinkler sys-

tem subjected to fire conditions.

8. Close valve F (Fig. 7). Activate a solenoid-release

pull station (Or other means of electric detection.) to
energize the solenoid valve(s). Silence any alarms
or audible tones on the releasing/control panel.
Open valve A (Fig. 7) to begin pressurizing the
push-rod chamber and its associated piping, while
simultaneously venting any entrapped air.

Note:

This venting of the air from the actuation piping is
very important to ensure proper system operation
and avoidance of falsely tripping the Deluge Valve.

10.

Deluge Valve

Reliable 510/511

Hydraulic Emergency Station (Model A)

Reliable 506

Solenoid Valve

Reliable 707

Mechanical Sprinkler Alarm

Reliable 612/613

Pressure Maintenance Device

Reliable 252

Air Compressor