Reliable Single Interlock Preaction System Instructions For Installation Manual

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Page 1

Instructions for Installation, Operation Care and Maintenance

For Single Interlock Preaction Systems With Dual Solenoid Actuation Of Pneumatic Pilot Release

Bulletin 739

Single Interlock Preaction System

4"(100mm), 6"(150mm) & 165mm Sizes with Trim

LPCB Approved

•

Redundant Solenoid Valve

•

Release

Rated to 175 psi (12.1 bar)

•

Externally Resetable

•

Clapper One Main Drain

•

Bulletin 739

The Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523

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General Description

Reliable Single Interlock Preaction Systems are de signed for water-sensitive areas that require protection from inadvertent water flow into the sprinkler system pip ing.

Sprinkler piping in single interlock systems can effec tively be supervised by means of a Reliable Model A-2

Pressure Maintenance Device and a tank-mounted air compressor. Loss of supervising pneumatic pressure, due to a damaged sprinkler or sprinkler pipe will not cause water to flow through the Model DDX Deluge Valve and into the system piping. A significant loss of pneumatic pressure will activate a trouble-annunciating device when the system pressure falls below a predeter mined pressure level.

When one electrical detector senses the presence of fire, the electrical releasing control panel activates fire alarm devices and energizes the two redundant, nor mally-closed solenoid valves in the open position ( Arranging detectors in a cross-zoned pattern will require operation of two detectors before the solenoid valves can open). These solenoid valves, when closed, retain sufficient AIR pressure in the Model LP Pilot Line Actua tor, which in turn preserves sufficient WATER pressure in the push rod chamber of the Model DDX Deluge Valve in order to maintain it closed.

Energizing the solenoid valves relieves the air pressure in the Model LP Dry Valve Actuator (see Fig. 8), thereby releasing the water pressure that it was retaining. This is turn relieves the pressure in the push rod chamber of the Model DDX Deluge Valve. Venting this push rod chamber will open the Model DDX Deluge Valve and allow water to flow into the sprinkler system.

To fully operate a cross-zoned single interlock system,

two electrical detectors must activate and a sprinkler head must open. During the early stages of a fire, smoke or heat activates the first detector, which causes the control panel to produce a local alarm and an alarm at the main fire alarm panel. Electrical relays inside the releas ing control panel can be used to shut down airmoving equipment or activate security doors and other electrical devices. Subsequent activation of a second, nearby or adjacent detector will cause the panel to energize the solenoid valves open and release water into the sprinkler system piping. Water flowing into the sprinkler system piping will simultaneously produce water pressure that causes the transfer of contacts in the pressure switch mounted in the trim. This pressureswitch can electrically initiate the shutdown or startup of equipment, such as computers or other second alarm devices. This flow of water into the sprinkler system piping effectively con verts the dry system into a wet pipe system. In the event that the fire subsequently produces sufficient heat to op erate a sprinkler head, water will flow from that sprinkler, controlling or suppressing the fire.

The major benefits of a single interlock preaction sys tem, when compared with a wet pipe (deluge) system are as follows:

Note:

A. A fire alarm sounds prior to the operation of a sprinkler head, which may enable extinguishing the fire by handheld means before the actual oper ation of any sprinklers and subsequent water dam age.

B. A trouble annunciator signals whenever the in

tegrity of the piping or sprinklers is accidentally or intentionally disturbed; however, no water flow or water damage will occur at that time.

C. Speedy detection and an early fire alarm are

provided by fire detectors, without the delay asso ciated with water delivery time in the event of a fire.

with a wet pipe system, the fire alarm is de

Note:

layed until after water has begun flowing from an operated sprinkler head.

At the heart of Reliable’s Single Interlock Preaction Sys tem is the Model DDX DelugeValve. This Deluge Valve is a hydraulically operated, straight-through-design, differ ential-type valve (see Fig. 1). System maintenance is simplified since priming water is not required and the deluge valve can be reset externally without cover re moval. This is accomplished by pushing in and turning the external reset knob at the rear of the deluge valve (see Fig. 1). This feature provides a significant system-restoration time advantage.

The Reliable Single Interlock Preaction System trim set

(see Fig. 2) provides all of the necessary equipment for connections to the Model DDX Deluge Valve’s pushrod chamber inlet and outlet ports, the 2” (50mm) main drain, alarm devices, air supply, water supply, and required pressure gauges. This trim set is available in individual parts, in time-saving, segmentally assembled kit forms, or fully assembled to the Model DDX Deluge Valve.

Listing & Approvals

The 4” (100mm), 6’ (150mm) and 165mm Single Inter

lock Preaction Systems shown in this bulletin must only be used in the combination described herein to be Loss Prevention Certification Board (LPCB) approved. Instal lation of these systems must be according the require ments of Technical Bulletin TB21:1994:1.

The majority of the system’s components are individu

ally Listed by Underwriters Laboratories Inc. and Fac tory Mutual Approved.

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Loss Prevention Certification Board (LPCB) Installation Requirements of Preaction systems Include:

1. Solenoid valves shall be installed in parallel.

2. Solenoid valves shall function in pneumatic condi

tions only, and be protected by a strainer.

3. LPCB Certified detectors compatible with the control

and indicating equipment shall be used.

4. Suitable electrical detection, control and indicating

equipment and pneumatic systems shall be used. The control and indicating equipment shall be LPCB approved / certificated.

5. Connecting cables shall comply with BS 6387:1983,

classification C, W, Z evidenced by LPCB certifica tion.

6. Pre-action systems shall be electrically monitored to

demonstrate that they are in a ‘ready to operate’ state at all times.

7. Clear dry air shall be used. Compressor tank must

have provision for draining.

8. Pre-action system equipment shall be installed, oper

ated and maintained as prescribed in the firm’s instal lation , operating and maintenance manual.

9. Pre-action systems shall be configured in accordance

with the manufacturer’s defined specifications.

10.Pre-action systems shall comply with the details spec

ified in the relatedLPC Technical Bulletin (Ref. TB21).

11.The firm responsible for the complete pre-action sta

tion, including electrics, shall be identified.

12.Normally un-energized solenoids may be used, pro

vided that they are continuously monitored for ‘open’ and ‘short circuit.’

Fig. 1

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Fig. 2

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SINGLE INTERLOCK PREACTION SYSTEM PARTS LIST (REFER TO FIG. 2)

ITEM

NO.

2 78653004

3 98048000

4 98048015

5 98048022

6 98048025

7 92056809

8 92056810

9 92056811

10 92056702

11 92056704

12 98085666

13 98050004

14 98174400

15 98174403

16 98174401

17 98174404

18 98174405

19 98174402

20 96920912

21 98240006

22 98240101

23 6304000100

24 78653000

25 71030010

26 94616917

27 98543222

28 98543266

29 98543213

30 98543223

31 98543210

32 98543216

33 98543209

34 98543230

35 98543237

36 98543226

PART

NUMBER

6103040026

6103060028

DESCRIPTION

MODEL DDX VALVE, ASSEMBLY, 4" (100MM)

MODEL DDX VALVE, ASSEMBLY, 6" (150MM)

MODEL DDX VALVE, ASSEMBLY, 165 MM

ASSEMBLY, VALVE CAUTION STATION, 1/2"

BUSHING, REDUCER, 1/2" x 1/4", GALV.

BUSHING, REDUCER, 2" SPIGOT x 1" NPTF, PVC

BUSHING, REDUCER, 3/4" X 1/2", GALV.

BUSHING, REDUCER, 3/4" X 1/4", GALV.

CONNECTOR ASSEMBLY, NO-LOSS, 3/8 x 1/2 NPT

CONNECTOR, 3/8" ID TUBE x 1/2" NPT

CONNECTOR, 3/8" ID TUBE x 1/4" NPT

CONNECTOR, 3/8" TUBING x 1/4" NPT

CONNECTOR, ELBOW, 3/8" ID TUBE x 1/2" NPT

REDUCER, 1/2" x 1/4"

DRAIN CUP, PVC

ELBOW, STREET, 1/2"

ELL, 1"

ELL, 1/2"

ELL, 1/4"

ELL, 2"

ELL, 3/4"

FLEX LINE, 12"

GAUGE, WATER PRESSURE (16 BAR) W/ CONNECTOR

GAUGE, WATER PRESSURE (6 BAR) W/ CONNECTOR

MOD. A-2 AUTO AIR MAINTENANCE DEVICE, 10PSI

MODEL B MANUAL EMERGENCY STATION

MODEL LP DRY VALVE ACTUATOR

NAMEPLATE, SINGLE INTERLOCK

NIPPLE, STEEL, 1" X 3-1/2"

NIPPLE, STEEL, 1" X 6"

NIPPLE, STEEL, 1" X CLOSE

NIPPLE, STEEL, 1/2" X 1-1/2"

NIPPLE, STEEL, 1/2" X 2-1/2"

NIPPLE, STEEL, 1/2" X 3-1/2"

NIPPLE, STEEL, 1/2" X 2"

NIPPLE, STEEL, 1/2" X 3"

NIPPLE, STEEL, 1/2" X 8"

NIPPLE, STEEL, 1/4" X 1-1/2"

REQ'D

16103060024

ITEM

NO.

37 98543225

38 98543244

39 98543220

40 98543243

41 98543227

42 98543208

43 98543238

44 98543215

45 98543233

46 98543232

47 98543279

48 99080002

49 98750003

50 98604406

51 98614403

52 98614401

53 98681630

54 78650201

55 98727607

56 96556922

57 96606627

58 96606607

59 98761649

60 98761651

61 96606608

62 96606612

63 96606601

64 89141112

65 98815204

66 98815200

67 98815201

68 98815202

69 98840160

70 98840101

71 98840100

72 78653100

73 98840110

74 98840144

75 98840145

76 98840181

77 98840171

78 6871020010

79 6871020000

80 98840193

81 96686722

82 96686756

PART

NUMBER

DESCRIPTION

NIPPLE, STEEL, 1/4" X 2-1/2"

NIPPLE, STEEL, 1/4" X 2"

NIPPLE, STEEL, 1/4" X 3"

NIPPLE, STEEL, 1/4" X 4"

NIPPLE, STEEL, 1/4" X CLOSE

NIPPLE, STEEL, 2" X 3"

NIPPLE, STEEL, 2" X CLOSE

NIPPLE, STEEL, 3/4" X 1-1/2"

NIPPLE, STEEL, 3/4" X 2-1/2"

NIPPLE, STEEL, 3/4" X 2"

NIPPLE, STEEL, 3/4" X CLOSE

PAD-ADHESIVE

PIPE CROSS, 1/2"

PLUG, SQ. HD., 1/2"

PLUG, SQ. HD., 1/4"

PLUG, SQ. HD., 3/4"

REGULATOR, AIR LINE

STRAINER, 1/2" NPT

STRAINER, 1/4"

SWITCH, PRESSURE, BAILEY & MACKEY

TEE, GLVN, 2 X 2 X 1

TEE, GLVN., 1/2 X 1/2 X 1/4

TEE, GLVN., 1/2 X 1/4 X 1/2

TEE, GLVN., 1/2"

TEE, GLVN., 1/4 X 1/4 X 1/4

TEE, GLVN., 3/4 X 1/2 X 1/2

TEE, GLVN., 3/4"

TIE, RETAINING

UNION, "O" RING SEAL, 1/2"

UNION, 1/2", IRON, G.J., GALV.

UNION, 1/4", IRON, G.J., GALV.

UNION, 3/4", IRON, G.J., GALV.

VALVE, 3-WAY, 1/4"

VALVE, ANGLE, 1/4"

VALVE, ANGLE, 2"

VALVE, BALL DRIP, 1/2"

VALVE, BALL, 1/4"

VALVE, CHECK GAUGE

VALVE, CHECK, 1"

VALVE, CHECK, 1/2"

VALVE, GLOBE, 1/2"

VALVE, SOLENOID ASCO

VALVE, SOLENOID SKINNER

VALVE, SPRING CHECK, 1/4"

TUBING, COPPER, 3/8" O.D. X 2 FT

TUBING,PVC,3/8"I.D.x6FT

REQ'D

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Fig. 3

System Operation

To fully operate a Reliable Single Interlock Preaction System, two independent events must coexist beforewater flow will occur. One electrical detector (two detectors in a cross-zoned system) must activate and a sprinkler head must open. Operation of either one of these items will only cause an alarm to annunciate, but will not cause water to discharge from the sprinkler system piping.

When set correctly for service, the Model DDX Deluge

Valve is hydraulically established to withhold the supply wa ter from the sprinkler system piping. The Reliable Model DDX Deluge Valve is shown in both closed and open posi tions in Fig.1. In the closed position, the supply pressure acts on the underside of the clapper and also on the push rod through the push rod chamber’s inlet restriction. The re sultant force due to the supply pressure acting on the push rod is multiplied by the mechanical advantage of the lever and is more than sufficient to hold the clapper closed against normal supply pressure surges.

When a fire is detected, the energized solenoid valves vent

the air from the Model LP Dry Valve Actuator (see Fig. 8), which in turn vents the push rod chamber to atmosphere through the chamber’s outlet. Since the pressure cannot be replenished through the inlet restriction as rapidly as it is vented, the pushrod chamber pressure falls instanta neously. When the pushrod chamber pressure approaches approximately one-third of the supply pressure, the upward force of the supply pressure acting beneath the clapper overcomes the lever-applied force thereby opening the clapper.

Once the clapper has opened, the lever acts as a latch, preventing the clapper from returning to the

closed position. Water from the supply flows through the deluge valve into the system piping. Water also flows through the deluge valve alarm outlet to the alarm devices.

After system shutdown, resetting the Model DDX De

luge Valve is quite simple. Doing so only requires pushing in and turning the reset knob at the rear of the valve (see Fig.1). The external reset feature of the Model DDX Deluge Valve provides a means for sim ple, economical system testing, which is one essential facet of a good maintenance program.

The external reset feature does not, however, elimi nate another important facet of good maintenance,

namely, periodic cleaning and inspection of the inter nal valve parts. In the event that water builds up inside the valve due to condensate from the air supply sys tem or water left inside from valve system testing, a drain is available for venting. After closing the main supply valve, a small valve over the drain cup can be opened slightly until the water inside the valve body and the main pipe column has drained. See the sec tion titled “Draining Excess/Condensate Water From System” in this bulletin for the detailed procedure.

The Model B Manual Emergency Station (see Fig. 3)

is also included in the trim set. It consists of an aluminum nameplate mechanically attached to a ball valve. The valve handle in its OFF position is guarded against accidental turning to the ON position (and system discharge) by a nylon cable tie provided with each trim kit. The cable tie is inserted, as shown in Fig. 3, after the system has been restored for operation. The nylon cable tie is designed to allow, in case of an emergency, forceful turning 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 Reliable Bulletin

506) is also available and can be provided as an option.

Whenever ambient temperature conditions are high,

the water temperature in the Model DDX Deluge

Valve’s pushrod chamber could possibly increase,

thereby increasing the pressure in the chamber to val ues exceeding the rated pressure of the system. In an indoor installation where standard room temperatures are exceeded, a pressure relief kit may be needed. Pressure relief kit, P/N 6503050001, can be installed into the pushrod chamber’s releasing line to limit the pressure to 175 psi (12,1 bar).

Page 7

Pressurizing Line Connection

The water supply for the push-rod chamber must be provided by connection of its inlet pressurizing line to the water supply piping. Pressurizing lines for multiple Model DDX Deluge Valve push-rod chambers must never be manifolded together, having only a single tap on the water supply piping. Each Model DDX Deluge Valve must have its own push-rod chamber pressurizing line connection. This connection must be made on the supply side of the main water supply control valve. This can be accomplished by: a. Using a tapped connection directly below or next to

the main water supply control valve using a welded outlet or the appropriate mechanical fittings. A grooved-end outlet coupling is one way to achieve this.

b. Using a water supply control valve that has an avail

able threaded (NPT) supply-side tap design to allow for a direct water supply connection to the Model DDX Deluge Valve’s push-rod chamber.

Caution:

signed with an inlet restriction built into the pushrod chamber. It is important not to introduce additional re strictions into the direct water supply connection or the discharge from the pushrod chamber by installing addi tional valves or improperly installing the copper lines used in the trim of the valve.

Reliable’s Model DDX Deluge Valve is de

The sections of the preaction trim that contains the two redundant normally-closed solenoid valves, and the up per portion of the Model LP Dry Valve Actuator, require pneumatic pressure settings per Table A. When estab lishing the preaction system for service, refer to Table A of this bulletin for the correct pneumatic pressuresettings for a corresponding water supply pressure. Note:

the initial system set-up, a higher pneumatic pressure may be required in order to properly seat the internal dia phragm of Model LP Dry Valve Actuator.

Refer to Reliable Bulletin 251 and/or Fig. 3 of this bulletin for instructions on how to modify these pressure settings.

Water Pressure

psi (bar)

Table A

Pneumatic Pressure to be Pumped

into Sprinkler System, psi (bar)

Maximum Not Less Than Not More Than

20 (1,4) 10 (0,7) 14 (0,9)

50 (3,4) 12 (0,8) 16 (1,1)

75 (5,2) 13 (0,9) 17 (1,2)

100 (6,9) 15 (1,0) 19 (1,3)

125 (8,6) 16 (1,1) 20 (1,4)

150 (10,3) 17 (1,2) 21 (1,4)

175 (12,1) 18 (1,2) 22 (1,5)

During

System Design Considerations

The automatic sprinklers, air compressor, releasing devices, electric releasing control equipment, fire detection devices, manual pull stations, and signaling devices which are utilized with this Reliable Single Interlock Preaction System must be Loss Prevention Certification Board (LPCB) approved, as applicable.

The deluge valve and all interconnecting piping must

be located in a readily visible and accessible location and in an areathat can bemaintained at a minimum tem perature of 40°F (4°C). Note:

Heat tracing is not permit

ted.

The redundant solenoid valves are operated and su pervised by an electrical releasing/control panel. Details on the electrical connections and the Prescient Pre-Ac

tion Sprinkler Extinguishing Fire Alarm Panel can be found on Figure 5 of this bulletin.

System Air Pressure Requirements

When a Reliable Single Interlock Preaction System is utilized, the sprinkler system piping requires a minimum of 7 psi (0,5 bar) supervisory pneumatic pressure. The Model A-2 Pressure Maintenance Device, along with an additional air pressure regulator, are used to maintain the system’s pneumatic pressure between 7 and 10 psi (0,5 and 0,7 bar) where a dry nitrogen gas supply or a clean, dependable, and continuous (24 hours per day, 7 days per week) compressed air source is available.

System Electrical Requirements

All releasing, alarm and detectiondevices in this Reliable Single Interlock Preaction System are supervised by the

Prescient Pre-Action Sprinkler Extinguishing Fire Alarm Panel. Connect these devices as shown in Fig. 5. The

power supply, the standby emergency power supply, battery charger, and the rectifier circuitry are all contained within this panel. For additional and detailed wiring information, refer to the manufacturer’s literature included with

the Prescient Releasing Control Panel. Caution:

or disassembly of the solenoid valves should only be done by a trained technician. An improperly repaired or

partially assembledsolenoid valve could result in failureof

the valve to operate.

Repairs

Page 8

Fig. 4

Page 9

Fig. 5

Page 10

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:

formula with C=120 and a flow velocity of 15ft/sec

(4.6 m/sec)):

7. Installation position: Vertical

Valve Size Equivalent Length

4" (100mm)

6" (150mm) & 165mm

14' (4.27 m)

29.4' (9 m)

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 Reliable 707/708

Electric Emergency Station Reliable 707

Thermal/Smoke Detectors Reliable 707

Fire Alarm Devices Reliable 707

Wa te rf lo w Pr es su re A la rm S wi tc h Bailey & Mackey Ltd.

Model 1381V

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

Valve

Size

(100mm)

165mm

(150mm)

•

Threaded openings Per ANSI B 2.1

4. Face to face dimensions:

Valve Size Color

4" (100mm) 6" (150mm)

165mm Red

•

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

Valve Size Weight

4" (100 mm)

6" (150 mm) & 165mm

Schedule 40 pipe, based on Hazen & Williams

Groove Dimensions

Outlet

Diameter

4.500"

(114mm)

6.500"

(165mm)

6.625

(168mm)

Groove

Diameter

4.334" (110)

6.330"

(161mm)

6.455"

(164mm)

Groove

Width

(10mm)

Black

64 lb. (29 kg)

95 lb. (43 kg)

Outlet Face

to Groove

(16mm)

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.

1. 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.

2. 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.

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

7. 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 trippingthe Deluge Valve.

The reset knob can

10.

Page 11

9. Upon seeing a solid flow of water from the drain tub

ing, and the cessation of the “gurgling” sound at the drip cup, H (Fig. 7), close valve D (Fig. 7) then rapidly apply compressed air or nitrogen into the to chamber of the Model LP Dry Valve Actuator until the pressure conforms to Table A levels as indicated on the air pressure gauge. The Model LP Dry Valve Actuator will close during this pressurizing process and the water will stop flowing into the drip cup. At this point, the pressure gauge which indicates push-rod cham ber pressure (Fig. 7) will equalize to the available wa ter supply pressure. Note: isolate the various pressure gauges in the trim during system set-up by closing the ¼” 3-way valves (#68 Fig. 2) that they are connected to. During set-up, pressure fluctuations may occur that can be poten tially damaging to the gauges.

10. De-energize the solenoid valve(s). This is accom

plished by resetting the solenoid-release pull station and/or the detectors that were activated in Step #8 above. Note: fore the releasing/control panel can be reset.

11. Open valve F (Fig. 7). Open slightly the main valve

controlling water supply (Fig. 7) to the deluge valve, closing drain valve B (Fig. 7) when water flows. Ob serve if water leaks through the ball drip valve, valve G (Fig. 7), into the drip cup, H (Fig. 7). If no leak oc curs, the seluge valve’s clapper is sealed. Open slowly, and verify that the main valve controlling water supply is fully opened and properly monitored.

12. Verify that valve A (Fig. 7) and valve F (Fig. 7) are open.

13. Secure the handle of the Model B Manual Emergency Station, valve D (Fig. 7), in the OFF position with a nylon tie (#64, Fig. 2).

All detection devices must be reset be

It may be necessary to

7. Testing alarms — make sure that valve F (Fig. 7) is

open. Open valveC (Fig. 7) permitting water from the supply to flow to alarm portion of the trim. Typical de vices that are connected to this section of the trim are pressure switches and/or a mechanical sprinkler alarms (water motor). After testing has been com

pleted, close this valve securely. Push in on the plunger of ball drip valve G (Fig. 7) until all of the water has drained from the alarm line.

8. Operational test — Open the Model B Manual Emer

gency Station, valve D (Fig. 7). Note:

test will cause the deluge valve to openand flow water

into the sprinkler system.

9. Secure the Model B Manual Emergency Station,

valveD(Fig.7),intheOFFpositionwithanylontie (#64, Fig. 2) after the deluge valve is reset.

An operational

Testing the Model DDX Deluge Valve without Flowing Water

Refer to Fig. 7

1. Close the valve controlling water supply to deluge

valve and open the main drain valve B.

2. Verify that valve A is open, allowing water to enter the

push rod chamber.

3. Operate detection system – energize the solenoid

valve(s) by operating a detector or manual pull sta tion.

4. Operation of the detection system will result in a sud-

den drop ofwater pressure in thepush rodchamber.

5. Reset the detection system — reverse the operations

performed in step three above and then proceed according to the directions listed in the “Resetting the Single Interlock Preaction System” section of this bul-

letin for resetting the Deluge Valve.

Inspection and Testing

Refer to Figs. 2, 6, and 7.

1. Water supply — be sure the valve(s) controlling water

supply to the Deluge Valve are opened fully and properly monitored.

2. Alarm line—be sure that valve F (Fig. 7) is opened

and remains in this position.

3. Other trimming valves — check that valve A (Fig. 7) is

open as well as all of the pressure gauge’s ¼” 3-way valves. Valves C, D,and E (Fig. 7) should be closed.

4. Ball drip valve, valve G (Fig. 7)—make sure that valve

F (Fig. 7) is open. Push in on the plunger to be sure the ball check is off its seat. If no water appears, the deluge valve’s water seat is tight. Inspect the bleed hole (see Fig. 7) on the underside of the deluge valve’s push rod chamber for leakage.

5. System pneumatic pressure — check the Model LP

Dry Valve Actuator’s air pressure gauge (Fig. 7) and water supply pressure gauge (Fig. 7) for confor mance to Table A.

6. Releasing device - Model LP Dry Valve Actuator (Fig.

7). Verify that the outlet is not leaking water. Check the Model LP Dry Valve Actuator’s air pressure gauge (Fig. 7) for proper pressure settings. Verify that the tubing line from the actuator is not pinched or crushed, which could prevent proper operation of the deluge valve.

Draining Excess/Condensate Water from the System

Refer to Fig. 7

1. Close the main valve controlling water supply to de

luge valve. Also, close valve A and open the main drain valve B.

2. Open the condensate drain valve E until all of the wa

ter has drained. Close valve E. Note: keep valve E open for an extended period of time be cause that will cause enough system air to bleed off, thereby causing an undesirable activation of a trou ble/alarm-annunciating device.

3. Close the main drainvalve B. If system contains pres

surized air, allow the air pressure to come back up to specification. Open valve A first, and then open the main valve controlling the water supply to the deluge valve.

Be sure not to

11.

Page 12

Fig. 6

Models DDX 4" (100mm), 6" (150mm) & 165mm Deluge Valve Parts List

Part Number

Item

4"(100mm)

Valve

1 91006005 91006007 91006027 Valve Body 1

2 96016004 96016006 96016006 Seat 1

3 91916004 91916006 91916006 Clapper 1

4 92116064 92116066 92116065 Cover 1

5 93416004 93416006 93416006

6 93706004 93706006 93706006

7 94506004 94506006 94506006 Lever 1

8 92126066 Cover, Pushrod 1

9 95406407 O-ring (014) 1

10 95406007 O-ring (114) 1

11 95406016 O-ring (161) 2

12 95406024 O-ring (912) 2

93706001 N/A N/A Gasket, Clapper, 4"

N/A 93706002 93706002 Gasket, Clapper, 6"

14 96216086 Hinge Pin, Clapper 1

15 96216046 Pin, Lever 1

16 95606131

17 96216066

18 95106006 Piston 1

19 95200038

20 95506006 Pushrod 1

21 93916006 Pushrod Guide 1

6"(150mm)

Valve

165mm Valve

Description

Seal Faceplate

Subassembly

Gasket, Cover

(Not Shown)

Threaded Stud,

#10-32 x ¾"

Pin, Locking, Seat

(Not Shown)

Plug, Socket,

Æ 3/8" - 18 NPT

(Not Shown)

No.

Req'd

Part Number

Item

4"(100mm)

No.

Valve

22 95306267

23 95606128

24 95606129

95606107 N/A N/A

N/A 91106006 91106006

26 96906111

27 95606127

28 95606130

29 95606114

30 93916006 Shaft, Reset 1

31 96406004 Spring, Lever 1

32 96406906 Spring 2

33 96906904

34 95276006 Diaphragm 1

35 92306006 Disc, Bumper 1

36 94106066 Housing, Reset 1

37 94206406 Inlet, Orifice 1

38 94356006 Knob, Reset 1

39 85000050

6"(150mm)

Valve

165mm

Valve

Description

Ring, Retaining

(2 Assembled to

Item No. 14)

Screw, Button Head,

#10-32 x 3/8"

Screw, Hex Washer

Head, #10-32 x 3/8"

Screw, Hex Cap, Æ ½"-13 x 1-1/2"

Screw, Hex Cap, Æ 5/8"-11 x 1-3/4"

Spring Lock

Washer, #10

Screw, C'sunk Cap

Head, Æ 3/8"-16 x ¾"

Screw, Socket Head,

#10-32 x 1"

Screw, Socket Head,

Æ ¼"-20 x 5/8"

Teflon Washer, Æ ½"

(2 Assembled to

Item No.14)

Grease, GPL-201

(Not Shown)

No.

Req'd

12.

Page 13

Fig. 7

13.

Page 14

Maintenance Procedures - Model DDX Deluge Valve

RefertoFigs.2,6&7.

1. Mechanical sprinkler alarm (water motor–not shown) not operating:

This is most likely caused by a clogged screen in the strainer of the water motor. Proceed as follows: Re move plug from the strainer. Remove and clean the screen. Replace the screen and the plug, and then tighten securely (Ref. Bulletin 613).

Leakage out of the ball drip valve G (Fig. 7).

a. Water leakage due to a watercolumn above

the deluge valve’s clapper:

This condition can be caused by leakage past

the system side of the Model DDX Deluge Valve’s seal faceplate subassembly (#5, Fig.

6). Be sure that this surface is free of any type

of debris. To eliminate leakage due to a water column, refer to the section in this bulletin marked “Draining Excess/Condensate Water From System”. If the problem continues pro ceed to the following section.

b. Leakage, air or water from the ball drip

valve, G (Fig. 7):

If system air is leaking out the ball drip valve, the problem is either damage to the airside of the Model DDX Deluge Valve’s seal faceplate

subassembly (#5, Fig. 6), seat (#2, Fig. 6), or

the upper seat O-ring (#11, Fig. 6).

If supply water is leaking out theball drip valve,

the problem could be caused by damage to the Model DDX Deluge Valve’s seal faceplate

subassembly (#5, Fig. 6), seat (#2, Fig. 6), or

lower seat O-ring (#11, Fig. 6). The following section provides instructions to correct both conditions:

A) Shut down the valve controlling the water

supply to the Deluge Valve and open the main

drain valve B (Fig. 7). Open the water column drain valve E (Fig. 7). Close the push rod chamber supply valve A (Fig. 7) and open the Model B Manual Emergency Station D (Fig.

7).

B) Remove the deluge valve’s front (handhold)

cover (#4, Fig. 6) and inspect the seat (#2, Fig. 6), clapper (#3, Fig. 6), and seal face plate subassembly (#5, Fig. 6) for damage. If inspection indicates damage to the clapper (#3, Fig. 6) or seal faceplate subassembly (#5, Fig. 6) only, then the clapper subassem bly can be removed as follows:

At the rear of the deluge valve, disconnect the

water column drain trim section at the ¾” un ion (#68, Fig. 2). Remove the retaining ring (handhold cover side) from the clapper hinge pin (#14, Fig. 6) and push this pin through the water column drain line and remove the clap per subassembly. Remove the four retaining screws (#24, Fig. 6) holding the seal face plate subassembly (#5, Fig. 6). Inspect the clapper (#3, Fig. 6) visually before re-install ing. Apply a small amount of silicone-based lubricant to the four retaining screws. Install a new seal faceplate subassembly. Torque the retaining screws to approximately 40 inch-pounds and reassemble.

If the seat (#2, Fig. 6) is damaged or it is sus

pected that the leakage is through the lower O-ring (#11, Fig. 6), the seat-clapper subas sembly is easily removedas aunit as follows: Using a 5/16” Allen wrench, remove the two 3/8” NPT pipe plugs (#19 (not shown) Fig. 6)

located on the side of the Model DDX Deluge Valve. The seat-clapper subassembly is re tained by two locking pins (#17 (not shown) Fig. 6). The centers of these pins have a ¼”-20 threaded hole. Remove the two lock

ing pins by engaging them with a ¼”-20

screw or threaded rod and pulling them out.

Note:

so turning them with the attached ¼”-20 screw or threaded rod is not recommended. A proven method is to use ¼”-20 threaded rod with a locknut on the un-inserted end. Grab hold of the locknut with pliers or vice-grips and tap the pliers or vice-grips in the direction moving away from the deluge valve. Doing so should pull the locking pins out of the deluge valve. With the clapper (#2, Fig. 6) in the closed position (not latched), dislodge the seat-clapper subassembly from the deluge valve’s body by inserting two large flathead screw drivers under the lever and clapper mounting ears of the seat and pry up until the seat-clapper subassembly is free of its bore. Reach into the deluge valve and grasp the seat-clapper subassembly from the sides. Lift up and rotate the seat-clapper subassembly through 90 degrees about the main access of deluge valve so that the lever-side of the seat-clapper subassembly faces the outlet of the deluge valve. Rotate the seat-clapper subassembly

around the centerline of the deluge valve until

the top of the clapper faces the handhold opening and then pull it out clapper hinge-pin side first. Visually examine all of the components of the seat-clapper subas sembly, replacing any component that ap pears damaged. New O-rings (#11, Fig. 6) should always be used for reassembly.

Re-assembly:

It is likely that the lower seat O-ring (#11, Fig.

6) has remained at the bottom of the deluge valve body’s bore. Discard this O-ring and clean the bore. Lubricate the borewith O-ring grease and place the lower seat O-ring on the step at the bottom of the bore, verifying that it is in full contact with the bore. Lubri cate the bottom step and upper seat O-ring (#11, Fig. 6) of the refurbished seat-clapper subassembly. Insert theseat-clapper subas sembly into the handhold opening of the de luge valve lever-first, rotating it until the lever side faces the outlet of the deluge valve. Ro tate the seat-clapper subassembly until the lever (#7, Fig. 6) faces the push rod (#20, Fig.

6), then drop the seat-clapper subassembly into the deluge valve’s bore. Verify that the seat-clapper subassembly is fully depressed in to the deluge valve’s body. Check to see that the lever lines up with the push rod. Ad

The two locking pins are not threaded,

14.

Page 15

just if necessary. Clean and lubricate the two locking pins (#17 (not shown) Fig. 6) with O-ring lubricant and drive them into the de luge valve body. Reinstall the 3/8” NPT pipe plugs (#19 (not shown) Fig. 6). Reassemble the handhold cover and set up the Model DDX Deluge Valve as per the section of this bulletin entitled “Resetting the Single Inter lock Preaction System”.

3. Leakage out of thepush rod chamber vent hole:

A small bleed hole is located on the underside of the

push rod chamber (see Fig. 6). If there is air or water leakage coming out of this hole, do the following:

A) Shut down the valve controlling water supply

to the deluge valve. Relieve the inlet pressure by opening the main drain valve B (Fig. V). Close valve A (Fig. 7), the valve that supplies water to the push rod chamber, and open the Model B Manual Emergency Station, valve D (Fig. 7).

B) Remove the trim at the unions nearest to the

push rod chamber cover (#8, Fig. 6).

C) Take the push rod chamber cover (#8, Fig. 6)

off by removing the six retaining screws (#29, Fig. 6).

Condition #1: Water coming out of the bleed

hole:

Water coming out of the bleed hole is caused by a leaking diaphragm (#34, Fig. 6). Visually inspect the push rod chamber cover (#8, Fig. 6) and piston (#18, Fig. 6) to determine what could have damaged the diaphragm and correct. Install a new diaphragm.

NOTE:

The diaphragm has two different surfaces, it

is not bi-directional. It will fail if installed backwards! Roll the diaphragm so that the smooth surface (the

pressure side) conforms to the inside of the push rod chamber cover and re-assemble the six retaining screws (#29, Fig. 6) with an installation torque of 15 foot-pounds. Set up the Model DDX Deluge Valve as per the section of this bulletin entitled “Resetting the

Single Interlock Preaction System”.

Condition #2: System Air coming out of the bleed hole:

System air coming out of the bleed hole is caused by a defective O-ring assembled to the push rod guide (#21, Fig. 6). Remove the piston-push rod subas

sembly, push rod spring (#32, Fig. 6), and push rod guide (#21, Fig. 6). Verify by hand turning, that the push rod cannot be unscrewed from the piston. Re

place all of the O-rings and the push rod guide. The correct installation torque for the push rod guide is 35 inch-pounds. CAUTION:

Do not over-tighten the

push rod guide. Re assemble the components that

were initially removed. Re-install the diaphragm (#34, Fig. 6) if it appears to be in good shape, otherwise, replace it also. NOTE: ent surfaces, it is not bi-directional. It will fail if in

The diaphragm has two differ

stalled backwards! Roll the diaphragm so that the smooth surface (the pressure side) conforms to the inside of the push rod chamber cover and re-assem

ble the six retainingscrews (#29, Fig. 6) with an installation torque of 15 foot-pounds. Set up the Model DDX Deluge Valve as per the section of this bulletin entitled “Resetting the Single Interlock Preaction System”.

Fig. 8

15.

Page 16

Model LP Dry Valve Actuator Parts List P/N 71030010

Refer to Fig. 8

Item

No.

1 94106936

2 94106935

3 96006905

4 92206311

5 95106911

6 96906311

7 94906406

8 95406901

10 96406902

Part No. Description Qty.

Required

Lower Housing

Upper Housing

Seat

Diaphragm

Facing Plate Assembly

Diaphragm Washer

Facing Plate Nut

Seat O-Ring

95606305

Bolt

Compression Spring

Maintenance – Model LP Dry Valve Actuator

RefertoFigs.7and8

1. If water constantly flows through the Model LP Dry Valve Actuator and into the drain, there is a leak in the seal of the Actuator’s seat.

2. Close the main valve controlling water supply (Fig. 7) to the Deluge Valve and close off the air/nitrogen supply to the sprinkler system. Close valve A (Fig. 7).

3. Drop pressure in the system by opening the ¼” angle valve, valve E (Fig. 7), and remove the Actuator from the system.

4. Remove all six bolts (#9, Fig. 8) holding the Actuator to gether. Clean or replacethe facing plate assembly (#5, Fig. 8) and seat (#3, Fig. 8).

5. Reassemble the Actuator, using a torque of 8 ft-lbs on the facing plate nut (#7, Fig. 8) and 12 ft-lbs on the six bolts (#9, Fig. 8). Use a cross-tightening pattern. Rein stall the Actuator. Set up the Model DDX Deluge Valve as per the section of this bulletin entitle “Resetting the Single Interlock Preaction System.”

Ordering Information

Specify Valve Model & Size — 4”(100mm) Model DDX Deluge Valve (P/N 6103040026), 6”(150mm) Model DDX Deluge Valve

(P/N 6103060024), 165mm Model DDX Deluge Valve (P/N 6103060028).

Trim — The trim set is available in individual parts, in time-saving segmentally assembled kit forms, or fully assembled

to the Model DDX Deluge Valve.

Trim Configurations

Fully Assembled to Model DDX Valve 6505040400 6505060400 6505065400

Segmentally Assembled

(Model DDX Valve Sold Separately)

Individual Parts

4" (100mm) Valve 6" (150mm) Valve 165mm Valve

Trim Part Numbers

6502071710

6502071700

Note: For metric installations, a 2" NPT x R2, ISO 7/1x Close Nipple(Reliable P/N 98543401) is sold separately as an

adapter for the single drain outlet of the trims.

16.

Page 17

Fig. 9

17.

Page 18

Installation Dimensions in Inches (mm)

VALVE A B C D E F G H J K L M N P Q

(100mm)

(150mm)

& 165mm

(133)

(159)

(171)

(337)

(197)

(337)

(200)

(654)

(140)

(216)

(343)

(368)

(159)2½(64)14(335)12(305)

(222)

(83)16(406)

(318)

(1251)23(584)

(1302)25(635)

(857)36(914)

(908)38(965)

(273)

The equipment presented in this bulletin is to be installed in accordance with the latest pertinent Standards of the Na tional Fire Protection Association, Factory Mutual Research Corporation, or other similar organizations and also with the provisions of governmental codes or ordinances whenever applicable.

Manufactured by

The Reliable Automatic Sprinkler Co., Inc. (800)431–1588 Sales Offices (800)848–6051 Sales Fax (914)829–2042 Corporate Offices

Www.reliablesprinkler.com Internet Address

P/N 9999970344

09/07

Reliable Fire Sprinkler Ltd. Unit A2, Epsom Business Park Kiln Lane, Epsom Surrey, KT171JF England

Phone: 0372 728899 Fax: 1372 724461