Reliable DDX Instructions For Installation, Operation And Maintenance Download

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1C_COMMDDX_1

TO RESET: PUSH INWARD AND ROTATE KNOB CLOCKWISE (AS VIEWED FROM REAR)

EXTERNAL
RESET KNOB

PUSH ROD

CHAMBER

DRAIN PORT

TEST PORT

ALARM PORT

OUTLET

EXTERNAL

RESET HINGE

RESTRICTION

PUSH ROD

CHAMBER

INLET

PUSH ROD

CHAMBER

OUTLET

PUSH ROD

CLAPPER IN

"LATCHED" POSITION

CLAPPER IN

"OPEN" POSITION

LEVER

CLAPPER IN

"CLOSED" POSITION

INLET

WEEP HOLE

TO RESET CLAPPER. NOTE: PUSH ROD CHAMBER MUST BE VENTED TO DRAIN.

MODEL DDX VALVE: SECTION VIEW

MODEL DDX VALVE: REAR VIEW

Fig. 1

Summary of Contents for DDX

Page 1: ...m 165 mm 8 200 mm Bulletin 750 October 2022 Bulletin 750 October 2022 Technical Specifications and Instructions for Installation Operation and Maintenance 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 ...

Page 2: ...in on 4 100 mm 165 mm 6 150 mm and 8 200 mm valve sizes alarm devices air supply and required pressure gauges This trim set is avail able in individual loose parts in time saving segmented assembled kit forms or fully assembled to the Model DDX Deluge Valve with or without a control valve Listings Approvals Only when used with Reliable Trim Sets 1 Reliable s Type D Double Interlock Preaction Syste...

Page 3: ...RT ALARM PORT OUTLET EXTERNAL RESET HINGE RESTRICTION PUSH ROD CHAMBER INLET PUSH ROD CHAMBER OUTLET PUSH ROD CLAPPER IN LATCHED POSITION CLAPPER IN OPEN POSITION LEVER CLAPPER IN CLOSED POSITION INLET WEEP HOLE TO RESET CLAPPER NOTE PUSH ROD CHAMBER MUST BE VENTED TO DRAIN MODEL DDX VALVE SECTION VIEW MODEL DDX VALVE REAR VIEW Fig 1 3 ...

Page 4: ... 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 push rod chamber could possibly increase thereby increasing the pressure in the chamber to values exceeding the rated pressure of the system In an indoor installation where stan dard room tempera...

Page 5: ...ed from improper fire pump settings un derground construction work or an improper venting of trapped air in the water supply piping System Design Considerations The automatic sprinklers releasing devices electric re leasing control equipment fire detection devices manual pull stations and signaling devices which are utilized with the Type D Double Interlock Preaction System must be UL or ULC Liste...

Page 6: ...ve seat Del uge valve shall have an external reset knob for resetting the clapper without requiring the removal of the valve face plate Pushrod chamber design shall consist of a stainless steel piston pushrod and spring assembly with diaphragm seal secured to the casting through a pushrod guide con structed of a synthetic engineering plastic to resist corro sion Casting shall have a bleeder hole l...

Page 7: ...erlock preaction system piping and be capable of restoring normal air pressure in the system within the time limits specified by NFPA 13 Unit shall include a mo tor mounted oil less piston compressor pressure gauge pressure switch check valve drain valve and safety relief valve Single phase motor shall have internal thermal pro tection Nitrogen Nitrogen cylinders provided by an approved source sha...

Page 8: ... 80 mm 3 500 89 mm 3 344 85 mm 11 32 9 0 mm 5 8 16 mm 4 100 mm 4 500 114 mm 4 334 110 mm 3 8 9 5 mm 5 8 16 mm 165 mm 6 500 165 mm 6 330 161 mm 3 8 9 5 mm 5 8 16 mm 6 150 mm 6 625 168 mm 6 455 164 mm 3 8 9 5 mm 5 8 16 mm 8 200 mm 8 625 219 mm 8 441 214 mm 7 16 11 mm 3 4 19 mm Threaded openings Per ANSI B 2 1 Flange Dimensions Flange T ype Nominal Pipe Size Bolt Circle Diameter Bolt Hole Diameter Fl...

Page 9: ... M M 1 6 5 M M 6 I N C H 1 5 0 M M 1 6 5 M M 4 I N C H 1 0 0 M M 4 I N C H 1 0 0 M M 3 I N C H 8 0 M M 3 I N C H 8 0 M M 2 1 2 I N C H 6 5 M M 7 6 M M 2 1 2 I N C H 6 5 M M 7 6 M M 2 I N C H 5 0 M M 2 I N C H 5 0 M M 1 5 10 50 100 500 0 1 0 5 PRESSURE LOSS BAR 0 1 1 10 10 100 1000 10000 FLOW RATE GPM PRESSURE LOSS PSI Fig 3 ...

Page 10: ...ion of the detection system and or sprinkler system subjected to fire conditions 8 Open the pushrod chamber supply valve and allow wa ter to fill the pushrod chamber Close the Model B Manual Emergency Station 9 Bleed all air from the actuation piping Open the so lenoid valve by operating a detector or an electric manual emergency station While water is flowing through the sole noid valve cause it ...

Page 11: ...then tighten se curely Ref Bulletin 613 2 Water leaking from Ball Drip This can be caused by either a water column on top of the clapper or a supply water leakage a Leakage due to water column This condition is caused by leakage past the clapper seal assembly Be sure the clapper seal and seat are free of any type of de bris or damage If nec essary follow steps below to replace the seal assembly an...

Page 12: ...em b Shut down the valve controlling water supply to the Del ugeValve Relievetheinletpressurebyopeningthemaindrain valve Close the pushrod chamber supply valve and open the Model B Manual Emergency Station c Remove the trim at the unions nearest to the pushrod chamber cover d Take the pushrod chamber cover off by removing the six retaining screws e Visually inspect the pushrod chamber cover and pi...

Page 13: ...13 750EXP_A Fig 4 ...

Page 14: ...1 10 37 8 30 33 20 31 5 16 36 2 42 5 6 34 38 9 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 29...

Page 15: ...1 Stainless Steel CF8M 18 95276006 Diaphragm 1 EPDM Polyester 19 95306267 N A N A N A RetainingRing 3 8 Shaft LeverPin 2 Stainless Steel 15 7 or 17 7 N A 95306267 N A N A RetainingRing Shaft LeverPin N A N A 95306269 N A Retaining Ring 5 8 Shaft Lever Pin N A N A N A 95316408 Retaining Ring Shaft Lever Pin 20 95306268 N A N A N A RetainingRing 3 8 Shaft HingePin 2 Stainless Steel 15 7 or 17 7 N A ...

Page 16: ... Size End Configuration Trim Assembly Loose Trim Segmentally Assembled Fully Assembled no Control Valve Fully Assembled with Control Valve Optional 300 psi 20 7 bar solenoid valve Note This trim assembly will include a spool piece with 1 4 outlet to accommodate push rod chamber supply piping Not available for 76mm or 165mm systems or systems using a flanged inlet Model DDX valve Service Kits Servi...

Page 17: ...t 2 End to end take out of Model DDX valve with flanged inlet where available see page 8 also reference Bulletin 519 3 Not applicable to 76mm or 165mm systems or systems using a flanged inlet Model DDX valve 4 2 systems include spool piece with outlet below valve dimension provided is total length of both components Reliable Automatic Sprinkler Co Inc 800 431 1588 Sales Offices 800 848 6051 Sales ...

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