1. Manuals
  2. Brands
  3. Reliable Manuals
  4. Water System
  5. DDX
  6. Instructions for installation, operation and maintenance

Reliable DDX Instructions For Installation, Operation And Maintenance

Double interlock preaction system – type d 2” (50 mm), 2 1/2” (65 mm), 3” (80 mm), 76 mm, 4” (100 mm), 6” (150 mm), 165 mm & 8” (200 mm)
Hide thumbs Also See for DDX:
Table of Contents

Advertisement

Quick Links

Technical Specifications and
Instructions for Installation,
Operation, and Maintenance
Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523
Model DDX Double Interlock
Preaction System – Type D
2" (50 mm), 2½" (65 mm), 3" (80 mm),
76 mm, 4" (100 mm), 6" (150 mm), 165
mm & 8" (200 mm)
•
Available with 175 psi (12.1 bar) or 300 psi
(20.7 bar) Rated Solenoid Valve
•
Externally Resettable Clapper
•
One Main Drain
•
7 to 10 psi (0.5 to 0.7 bar) Pneumatic
Supervising Pressure
•
Electric/Electric Actuation
Image subject to change.
Bulletin 750 October 2022

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the DDX and is the answer not in the manual?

Questions and answers

Related Manuals for Reliable DDX

Summary of Contents for Reliable DDX

  • Page 1 Externally Resettable Clapper Operation, and Maintenance • One Main Drain • 7 to 10 psi (0.5 to 0.7 bar) Pneumatic Supervising Pressure • Electric/Electric Actuation Image subject to change. Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523...

  • Page 2: System Operation

    The Reliable Model valve remains closed due since the detection system has DDX Deluge Valve is shown in both closed and open po- not activated. sitions in Fig. 1. In the closed position, the supply pres-...
  • Page 3 INLET WEEP HOLE TEST PORT EXTERNAL RESET HINGE DRAIN PORT INLET MODEL DDX VALVE: SECTION VIEW 1C_COMMDDX_1 PUSH ROD CHAMBER EXTERNAL RESET KNOB MODEL DDX VALVE: REAR VIEW TO RESET: PUSH INWARD AND ROTATE KNOB CLOCKWISE (AS VIEWED FROM REAR) TO RESET CLAPPER.
  • Page 4 Manual Emergency Pull Box (see Reliable Bulletin 506) is tenance, namely, periodic cleaning and inspection of the also available and can be provided as an option. internal valve parts. Whenever ambient temperature conditions are high, the...

  • Page 5: System Design Considerations

    To adjust the system pneumatic pressure between 7 and to be hydrostatically tested at 50 psi above the system work- 10 psi (0.5 and 0.7 bar) refer to Reliable Bulletin 251. The ing pressure. In addition to the hydrostatic tests described...

  • Page 6: System Electrical Requirements

    [cULus Listed] [Factory Mutual Approved] Reliable service. Solenoid shall be a Skinner ½” normally closed Model DDX Deluge Valve. Deluge valve shall be a [2” (50 solenoid valve [73218BN4UNLVNOC111C2 (175 psi mm)][2½” (65 mm)][76 mm] [3” (80 mm)][4” (100 mm)] (12.1 bar) rated)] [73212BN4TNLVNOC322C2 (300...

  • Page 7: Optional System Accessories

    Pressure alarm switch shall rated for a working pressure of [300 psi (20.7 bar)]. System be Potter PS10-2. control valve shall be for a [2” (50 mm)] Reliable RBVG But- • Pressure maintenance device for maintaining a con- terfly Valve or [2½”...
  • Page 8 Technical Data • Flange Dimensions Reliable Double Interlock Type D Preaction Systems, with Nominal Bolt Bolt Flange Flange Number Flange Pipe Circle Hole Outside Thick- associated trim, size 2” (50 mm), 2½” (65 mm), 76 mm, T ype: Size Diameter...
  • Page 9 MODEL DDX HYDRAULIC FRICTION LOSS GRAPH FLOW RATE (L/SEC) 0.05 0.01 1000 10000 FLOW RATE (GPM) Fig. 3...

  • Page 10: Inspection And Testing

    Open slightly the main valve controlling water supply figurations can be ordered as individual parts, in time-saving to the Model DDX Deluge Valve, closing the main drain valve segmentally assembled kit forms, or fully assembled to the when water flows. Observe if water leaks through the ball Model DDX Deluge Valve (with or without a control valve).

  • Page 11: Maintenance

    6881604000 for 4” (100mm) valve size, Reliable P/N 6881606000 to corrosive conditions or chemicals that could impact materials or for the 6” (150mm) and 165mm valve sizes or Reliable P/N operation of the assembly. 6881608000 Seat Wrench for 8” (200mm) valve size, remove the If face plate is removed during maintenance, torque face plate bolts seat by unscrewing.
  • Page 12 Reassemble the handhold cover and set up the Model DDX Deluge Valve as per the section “Resetting Model DDX Type D Double Interlock Preaction System.”...
  • Page 13 750EXP_A Fig. 4...
  • Page 14 MODEL DDX VALVE WITH STAINLESS STEEL SCREW-IN SEAT IMPORTANT NOTE: Early generation 4" and 6" DDX valves may incorporate a brass drop-in seat. Prior to ordering replacement parts, confirm the presence of a stainless steel screw-in seat or brass drop-in seat. For replacement parts for valves with brass drop-in seat, please contact Reliable Sprinkler Company Technical Services (techserv@reliablesprinkler.com)
  • Page 15 Model DDX (Screw-In Seat Configuration) Deluge Valves Parts List (Refer to Fig. 5) Part No. Item Part Description QTY. Material 2" 2½" 3" 4” 6” 8" 76mm 165mm (50mm) (65mm) (80mm) (100mm) (150mm) (200mm) 91006011 91006012 91006023 91006013 91006005 91006027...

  • Page 16: Ordering Information

    Model DDX (Screw-In Seat Configuration) Deluge Valves Parts List (Refer to Fig. 5) (Cont.) Part No. Item Part Description QTY. Material 2" 2½" 3" 4” 6” 8" 76mm 165mm (50mm) (65mm) (80mm) (100mm) (150mm) (200mm) 96906112 Spring Lock Washer, #6...
  • Page 17 End to end take out of Model DDX valve with grooved inlet. End to end take out of Model DDX valve with flanged inlet where available (see page 8; also reference Bulletin 519). Not applicable to 76mm or 165mm systems, or systems using a flanged inlet Model DDX valve.

Table of Contents