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Instructions for
Installation, Operation
Care and Maintenance
For Single Interlock Preaction Systems
With Dual Solenoid Actuation
Of Pneumatic Pilot Release
The Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
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
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Summary of Contents for Reliable Single Interlock Preaction System
- Page 1 • Rated to 175 psi (12.1 bar) For Single Interlock Preaction Systems • Externally Resetable With Dual Solenoid Actuation Clapper Of Pneumatic Pilot Release • One Main Drain The Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523...
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Page 2: General Description
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 A trouble annunciator signals whenever the in- compressor. Loss of supervising pneumatic pressure,... - Page 3 Loss Prevention Certification Board (LPCB) Installation Requirements of Preaction systems Include: Solenoid valves shall be installed in parallel. Pre-action system equipment shall be installed, oper- ated and maintained as prescribed in the firm’s instal- Solenoid valves shall function in pneumatic condi- lation , operating and maintenance manual.
- Page 4 Fig. 2...
- Page 5 SINGLE INTERLOCK PREACTION SYSTEM PARTS LIST (REFER TO FIG. 2) ITEM PART DESCRIPTION ITEM PART NUMBER REQ'D DESCRIPTION NUMBER REQ'D MODEL DDX VALVE, 98543225 NIPPLE, STEEL, 1/4" X 2-1/2" 6103040026 ASSEMBLY, 4" (100MM) 98543244 NIPPLE, STEEL, 1/4" X 2" MODEL DDX VALVE,...
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Page 6: System Operation
The valve handle in its OFF position is guarded System Operation against accidental turning to the ON position (and To fully operate a Reliable Single Interlock Preaction Sys- system discharge) by a nylon cable tie provided with tem, two independent events must coexist before water flow each trim kit. -
Page 7: System Design Considerations
Model LP Dry Valve Actuator. a. Using a tapped connection directly below or next to Refer to Reliable Bulletin 251 and/or Fig. 3 of this bulletin the main water supply control valve using a welded for instructions on how to modify these pressure settings. - Page 8 Fig. 4...
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Page 10: Technical Data
Technical Data formula with C=120 and a flow velocity of 15ft/sec (4.6 m/sec)): Reliable Single Interlock Preaction Systems, with asso- ciated trim, sizes 4” (100mm), 6” (150mm) and 165mm 7. Installation position: Vertical are rated for use at minimum water supply pressure of 20... -
Page 11: Inspection And Testing
Upon seeing a solid flow of water from the drain tub- Testing alarms — make sure that valve F (Fig. 7) is ing, and the cessation of the “gurgling” sound at the open. Open valve C (Fig. 7) permitting water from the drip cup, H (Fig. - Page 12 Fig. 6 Models DDX 4" (100mm), 6" (150mm) & 165mm Deluge Valve Parts List Part Number Part Number Item Req'd Item Req'd 165mm Description 4"(100mm) 6"(150mm) 4"(100mm) 6"(150mm) 165mm Description Valve Valve Valve Valve Valve Valve 91006005 91006007 91006027 Valve Body Ring, Retaining 95306267 (2 Assembled to...
- Page 13 Fig. 7...
- Page 14 If the seat (#2, Fig. 6) is damaged or it is sus- Maintenance Procedures - Model DDX pected that the leakage is through the lower Deluge Valve O-ring (#11, Fig. 6), the seat-clapper subas- Refer to Figs. 2, 6 & 7 sembly is easily removed as a unit as follows: 1.
- Page 15 Model per the section of this bulletin entitled “Resetting the DDX Deluge Valve as per the section of this Single Interlock Preaction System”. bulletin entitled “Resetting the Single Inter- Condition #2: System Air coming out of the bleed lock Preaction System”.
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Page 16: Ordering Information
(Model DDX Valve Sold Separately) Individual Parts 6502071700 (Model DDX Valve Sold Separately) Note: For metric installations, a 2" NPT x R2, ISO 7/1 x Close Nipple (Reliable P/N 98543401) is sold separately as an adapter for the single drain outlet of the trims. - Page 18 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 Reliable Fire Sprinkler Ltd. The Reliable Automatic Sprinkler Co., Inc. Unit A2, Epsom Business Park (800)431–1588 Sales Offices...
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