Bulletin 727 Rev. G Instructions for Installation, Operation, Care and Maintenance • • • Bulletin 727 Rev. G Single Interlock Preaction System 4” (100mm), 6” (150mm) & 165mm Sizes Available with 175 psi (12,1 bar) or 250 psi (17,2 bar) Rated Solenoid Valve Externally Resettable Clapper One Main Drain 2 PSI (0,14 bar) Pneumatic Supervising Pressure with Electric Actuation The Reliable Automatic Sprinkler Co., Inc.
General Description • A trouble annunciator signals whenever the integrity Single Interlock Preaction Systems are designed for water-sensitive areas that require protection from inadvertent water flow into the sprinkler system piping. Sprinkler piping in single interlock systems can effectively be supervised by means of a Reliable Model B Air Compressor Panel or Model C Pressure Maintenance Device.
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Single Interlock Electric Release Preaction Trim Parts List (Refer to Fig. 2) Item No. Part No.
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 Deluge Valve is quite simple. Doing so only requires pushing in and turning the reset knob at the rear of the valve (see Fig.1).
Fig. 3 40°F (4°C). Note: Heat tracing is not permitted. Pendent sprinklers, other than dry pendents, used on preaction systems shall be installed on return bends per NFPA 13. The solenoid valve is operated and supervised by the electrical releasing/control panel. Details on the electrical portion of this system can be found in Reliable Bulletin 708, “ Electrical Systems.” or EPS-40 low air pressure switch.
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Single Interlock Preaction System– Electric Release Trim Engineering Specifications General Description Preaction system shall be a single interlock preaction system utilizing a [4” (100 mm)] [6” (150 mm)] [165mm] [cULus Listed] [FM Approved] hydraulically operated, differential latching clapper-type valve with electric release preaction trim. Deluge valve shall be of lightweight, ductile-iron construction with “drop in” bronze seat and clapper assembly.
4. Face to face dimensions: • 4” (100 mm) — 14” (355 mm) • 6” (150 mm) & 165 mm — 16” (406 mm) 5. Shipping weight: Waterflow Alarm Pressure Switch Alarm pressure switch shall be provided to indicate water flow and provide a water flow alarm. Pressure switch shall be [cULus Listed] [FM Approved] and of the bellows activated type enclosed in a weatherproof, 4x, NEMA 4-rated enclosure incorporating tamper-resistant screws. There shall be two sets of SPDT (Form C) contacts rated at 10.0 A @ 125/250 VAC and 2.
9. Bleed any air from the actuation piping by energizing the solenoid valve. This is done by operating a detector or an electric manual emergency station. While water is flowing through the solenoid valve, cause it to close. Refer to Bulletin 700, “Special Hazards & Special Systems” for details. Note: All detection devices must be reset before the releasing/control panel can be reset. 10. Close valve G (Fig. 6). Open the valve to restore air pressure in the sprinkler system. 11. Open valve G (Fig. 6).
Fig. 5 Models DDX 4” (100mm), 6” (150mm) & 165mm Deluge Valve Parts List Part Number Item 4”(100mm) 6”(150mm) 165mm No.
Fig. 6 13.
Maintenance Procedures - Model DDX Deluge Valve through the water column drain line and remove the clapper subassembly. Remove the four retaining screws (#24, Fig. 5) holding the seal faceplate subassembly (#5, Fig. 5). Inspect the clapper (#3, Fig. 5) visually before re-installing. 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.
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. Lubricate the bottom step and upper seat O-ring (#11, Fig. 5) of the refurbished seat-clapper subassembly. Insert the seat-clapper subassembly into the handhold opening of the Deluge Valve lever-first, rotating it until the lever side faces the outlet of the Deluge Valve. Rotate the seat-clapper subassembly until the lever (#7, Fig. 5) faces the push rod (#20, Fig.
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 with or without a control valve. • Solenoid Valve —175 psi (12,1 bar) or 250 psi (17,2 bar) Rated. Explosion-Proof Solenoid Valve available upon request.
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Installation Dimensions in Inches (mm) VALVE A B C *D E F G H J K L M N P Q 4” (100mm) 51/4 (133) 63/4 (171) 91/2 (241) 14 (355) 251/4 (641) 271/2 (699) 81/2 (216) 6 (152) 5½ (140) 81/2 (216) 13½ (343) 21/2 (64) 61/4 (159) 7 (178) 12 (305) 6” (150mm) & 165mm 61/4 (159) 73/4 (197) 101/2 (267) 16 (406) 261/4 (667) 291/2 (749) 81/2 (216) 6 (152) 5½ (140) 81/2 (216) 13½ (343) 31/4 (83) 83/4 (222) 61/2 (165) 121/2 (218) * Total take out dimension for Fully Assemble
SOLENOID VALVE INSPECTIONS, TESTS AND MAINTENANCE WARNING: THE OWNER IS RESPONSIBLE FOR MAINTAINING THE FIRE PROTECTION SYSTEM IN PROPER OPERATING CONDITION. ANY SYSTEM MAINTENANCE OR TESTING THAT INVOLVES PLACING A CONTROL VALVE OR DETECTION SYSTEM OUT OT SERVICE MAY ELIMINATE THE FIRE PROTECTION OF THAT SYSTEM. PRIOR TO PROCEEDING, NOTIFY ALL AUTHORITIES HAVING JURISDICTION. CONSIDERATION SHOULD BE GIVEN TO EMPLOYMENT OF A FIRE PATROL IN THE AFFECTED AREA.
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