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GeneralDescriptionThe 4 inch (DN100), Model DPV-1 DryPipe Valve is a differential valve usedto automatically control the flow ofwater into a dry pipe fire protectionsprinkler system upon operation ofone or more automatic sprinklers. TheDPV-1 also provides for actuation offire alarms upon system operation.The Model DPV-1 features are as fol-lows:
• External reset.
• 250 psi (17,2 bar) pressure rating.
• Unique offset single clapper designenabling a simple compact valve tominimize installation labor.
• Ductile iron construction to ensure alightweight valve to minimize ship-ping cost.
• A variety of inlet and outlet connec-tions.
• Compact, semi-preassembled andfully assembled, and easy to operatevalve trim.
• Simple reset procedure through theelimination of priming water.
Dry pipe sprinkler systems are used inunheated warehouses, parking ga-rages, store windows, attic spaces,loading docks, and other areas ex-posed to freezing temperatures, wherewater filled pipe cannot be utilized.When set for service, the dry pipesprinkler system is pressurized with air(or nitrogen). The loss of pressurethrough an operated automatic sprin-kler in response to heat from a firepermits the DPV-1 Dry Pipe Valve toopen and allow a flow of water into thesprinkler system piping. To help pre-vent false operations that occur due towater supply fluctuations, the mini-mum required air pressure is approxi-mately 18% of the normal static watersupply pressure with an added 20 psi(1,4 bar) safety factor (Ref. Table A).
WARNINGThe Model DPV-1 Dry Pipe Valve de-scribed herein must be installed andmaintained in compliance with thisdocument, as well as with the applica-ble standards of the National Fire Pro-tection Association, in addition to thestandards of any other authorities hav-ing jurisdiction. Failure to do so mayimpair the integrity of this device.
The owner is responsible for maintain-ing their fire protection system and de-vices in proper operating condition.The installing contractor or manufac-turer should be contacted relative toany questions.
TechnicalDataApprovals:UL and C-UL Listed. FM Approved.
Dry Pipe Valve:The 4 inch (DN100), Model DPV-1 DryPipe Valves are for vertical installa-tions (flow going up), and they arerated for use at a maximum servicepressure of 250 psi (17,2 bar). TheValve dimensions are shown in Figure7, and all of the por ts are NPTthreaded per ANSI Standard B1.20.1.Flanged inlet connections are drilledper ANSI B16.1 (Class 125) or ISO2084 (PN10) specifications, as re-quired. The grooved outlet connec-tions, as applicable, are cut in accord-ance with standard groovespecifications for steel pipe. They aresuitable for use with grooved end pipecouplings that are listed or approvedfor fire protection system service.Available combinations of inlet andoutlet connections are detailed in theOrdering Procedure section.
NOTEFor a system working pressure in ex-cess of 175 psi (12,1 bar) up to 250 psi(17,2 bar), the flanged connection(s)
Model DPV-1 Dry Pipe Valve, External Resetting4 Inch (DN100), 250 psi (17,2 bar)Flange x Flange or Flange x Groove
Technical Services: Tel: (800) 381-9312 / Fax: (800) 791-5500
Page 1 of 12 TFP1041FEBRUARY, 2002
Customer Service/Sales:Tel: (215) 362-0700 / (800) 523-6512
Fax: (215) 362-5385
TFP1041 (10-4.1)
OBSOLETE
FIGURE 14 INCH (DN100) MODEL DPV-1 DRY PIPE VALVE
— ASSEMBLY —
5
3
4
1
1 Valve Body 1 NR
NRSee (a)
See (c)See (c) or (d)
See (b)See (e)
2
3
678
9
10
1112
15
Air and Water
Handhole Cover
ClapperClapper Facing
1/4-20 UNC x 1/2"
Clapper Hinge
Reset KnobReset Spring
11
11
11
17
18
Reset Latch
Seat
Retaining Plate
Socket Head Cap
Pin
. . . .
. . . . . .
. . . . . . . . . . . .
. . . . . . .
. . .
. . . . . . . . . .
. . . . . . . . . . . . .
4 Handhole CoverSee (d)Gasket 1. . . . . . . . . .
5 1/2-13 UNC x 1"
CHScrew 6. . . . . . . . . . .
Clapper FacingSee (c)1. . . .
Hex Head Cap
See (c)7Screw . . . . . . . . . . .
See (e)1. . . . .13 Reset Bushing See (e)1. . . .14 Reset Bushing
See (d) or (e)O-Ring 1. . . . . . . . . . .Reset Plunger
See (d) or (e)O-Ring 1. . . . . . . . . .16 Reset Plunger See (e)1. . . . .
9
11
12
13
14
15, 18
16
Dow Corning FS3452
See (d) or (e)Grease, 1.5 g 1. . . . .Flourosilicone
Subassembly 1 See (e). . . . .
17
2
6
7
8
10
CLAPPERASSEMBLY
RESETPLUNGER
PARTS
NO. QTY.DESCRIPTION REF.
NR: Not ReplaceableCH: Common Hardware
(c) Clapper Assembly
92-309-1-403. . . . . . . . . .(d) Repair Parts Kit
(e) Reset Plunger Parts KitIncludes Items:
NO. DESCRIPTION P/N
REPLACEMENT PARTS
(a) Handhole Cover 92-309-1-401. . . . . .(b) Clapper Hinge Pin 92-309-1-402. . . .
Includes Items:6 through 9
92-309-1-404. . . . . . .Includes Items:4, 7, 14, 15, 18
11 through 18 92-309-1-405. . . . . . . .
Page 2 of 12 TFP1041
OBSOLETE
of the DPV-1 must be adapted withflange to groove adapters. The flangeto groove adapters will permit a simpletransition between the 250 psi (17,2bar) rated DPV-1 and piping compo-nents of a higher pressure rating thanClass 125 flanges and flanged fittings,which are limited to 175 psi (12,1 bar).The flange to groove adapters must beselected based on their having a maxi-mum working pressure for the antici-pated conditions. The use of a CentralGrooved Piping Product Figure 71Flange Adapter is recommended.
Components of the 4 Inch (DN100)DPV-1 Valve are shown in Figure 1.The Body and Handhole Cover areductile iron. The Handhole Cover Gas-ket is neoprene, and the Clapper Fac-ing is EPDM. The Air/Water Seat Ringis brass, the Clapper is copper, andboth the Clapper Retaining Plate andLatch are bronze. The Hinge Pin isaluminum bronze, and the fastenersfor the Handhole Cover are carbonsteel.
Valve Trim:Installation dimensions are given inFigure 7, and the Valve Trim is illus-trated in Figures 4 and 5. The ValveTrim forms a part of the laboratory list-ings and approval of the DPV-1 Valveand is necessary for the proper opera-tion of the DPV-1 Valve. Each packageof trim includes the following items:
• Water Supply Pressure Gauge
• System Air Pressure Gauge
• Air Supply Connections
• Main Drain Valve
• Low Body Drain Valve
• Alarm Test Valve
• Automatic Drain Valve
• Drip Funnel
NOTEWhen the system pressure is greaterthan 175 psi (12,1 bar), provision is tobe made to replace the standard order300 psi (20,7 bar) Water Pressuregauge, shown in Figure 4, with a sepa-rately ordered 600 psi (41,4 bar) WaterPressure Gauge.
Air Supply:Table A shows the system air pressure
requirements as a function of the watersupply pressure. The air (or nitrogen)pressure in the sprinkler system is rec-ommended to be automatically main-tained by using one of the followingpressure maintenance devices, as ap-propriate:
• Model AMD-1 Air Maintenance De-vice (pressure reducing type).
• Model AMD-2 Air Maintenance De-vice (compressor control type).
• Model AMD-3 Nitrogen Mainte-nance Device (high pressure reduc-ing type).
The Pressure Relief Valve (Item 4 - Fig.4) is factory set to relieve at a pres-sure of approximately 45 psi (3,1bar). If the normal system air pressure
MaximumWater Supply
Pressure,psi
System AirPressureRange,
psi
50
75
100
125
150
175
29 - 35
33 - 39
38 - 45
42 - 49
48 - 56
52 - 60
TABLE ASYSTEM AIR PRESSURE
REQUIREMENTS
200
225
250
56 - 64
60 - 68
65 - 70
FIGURE 24 INCH (DN100) MODEL DPV-1 DRY PIPE VALVE
— NOMINAL PRESSURE LOSS VERSUS FLOW —
The approximate friction loss, based on the Hazen and Williams formula and ex-pressed in equivalent length of Schedule 40 pipe with C=100, is 8.9 feet. The equiva-lent length of pipe has been calculated on a typical flow rate of 600 GPM
300 400 500 800
2000 3000 4000
0,200
0,040
0,030
0,090
0,080
0,100
0,300
0,070
0,060
0,050
1200
1200
0.3
2.0
0.8
0.5
0.4
0.6
0.7
1.0
0.9
5.0
3.0
4.0
FLOW RATE IN GALLONS PER MINUTE (GPM)
(1P
SI=
0.06
895
BA
R)
NO
MIN
AL
PR
ES
SU
RE
DR
OP
INB
AR
NO
MIN
AL
PR
ES
SU
RE
DR
OP
INP
OU
ND
SP
ER
SQ
UA
RE
INC
H(P
SI)
FLOW RATE IN LITRES PER MINUTE (LPM)(1 GPM = 3.785 LPM)
0,022
Page 3 of 12TFP1041
OBSOLETE
FIGURE 34 INCH (DN100) MODEL DPV-1 DRY PIPE VALVE
— SET AND OPEN POSITIONS —
INTERMEDIATECHAMBER
FULLY OPENASSEMBLYCLAPPER
& ALARM
FIGURE 3D
FIGURE 3A
DRAIN POSITION
SET POSITION
SHUT OFFWATER SUPPLY
FROM
SYSTEM
WATER SUPPLY
OPEN
3/4" NPTLOW BODY
DRAIN
04
ASSEMBLYLATCHED
CLAPPER
TEST PORT
02
PORTMAIN DRAIN
2" NPT
LATCHCLAPPER
05
RESET
SET POSITIONFIGURE 3B
AIR PRESSURETO SYSTEM
1" NPT
PORT
1/2" NPTWATER
AIR SUPPLY
PRESSURESUPPLY
01
RESEATEDASSEMBLYCLAPPER
TO ALARM
ALARM PORTWATERFLOW
LATCH
FIGURE 3ERESET POSITION
SHUT OFFWATER SUPPLY
ASSEMBLYCLAPPER
PIVOTS TOUNLATCH
FIGURE 3COPERATED POSITION
COMPLETESYSTEM
WATER SUPPLY
CLAPPER
FROM
WATERFLOWTO SYSTEM
CLAPPER LATCH
CLAPPER ASSEMBLYPIVOTS TO ALLOW
TO FULLY OPEN
ASSEMBLY
ATMOSPHERE
3/4" NPT ALARMPORT OPEN TO
03
PORT
KNOBRESET
DRAIN FROMDRAIN FROM
CLAPPER
IN SETASSEMBLY
POSITION
PUSH HERE
VALVETO RESET
INTERMEDIATE
WATER
VALVEWATERWAY
SEAT
ASSEMBLYCLAPPER
PORT
CHAMBER
ALARM
AIRSEAT
03
Page 4 of 12 TFP1041
OBSOLETE
is less than or exceeds 40 psi (2,8 bar),then the pressure Relief Valve must bereset to relieve at a pressure that is inaccordance with the Authority HavingJurisdiction.
Quick Opening Device:
As an option, the Model DPV-1 DryPipe Valve may be equipped with theModel ACC-1 Dry Pipe Valve Accelera-tor. When the ACC-1 Accelerator is tobe used with the DPV-1 Dry Pipe Valvethe Accelerator Trim shown in Figure 6is utilized.
The ACC-1 is used to reduce the timeto valve actuation following the opera-tion of one or more automatic sprin-klers. In some cases the ACC-1 maybe required to meet the requirementsof the National Fire Protection Asso-ciation for systems having a capacitygreater than 500 gallons (1890 litres).
Patents:Features of the Model DPV-1 Dry PipeValve are patent pending.
OperatingPrinciplesThe Model DPV-1 Dry Pipe Valve is adifferential type valve that utilizes asubstantially lower system (air or nitro-gen) pressure than the supply (water)pressure, to maintain the set positionshown in Figure 3A. The differentialnature of the DPV-1 is based on thearea difference between the air seatand the water seat in combination withthe ratio of the radial difference fromthe Hinge Pin to the center of the WaterSeat and the Hinge Pin to the center ofthe Air Seat. The difference is suchthat 1 psi (0,07 bar) of system air pres-sure can hold approximately 5.5 psi(0,38 bar) of water supply pressure.
The minimum system air or nitrogenpressure (Ref. Table A) is, therefore,required to be approximately 18% ofthe static water supply pressure, plusa 20 psi (1,4 bar) safety factor, to helpprevent a false operation that mightotherwise occur due to water supplypressure fluctuations.
The Intermediate Chamber of theDPV-1 is formed by the area betweenthe Air Seat and Water Seat as shownin Figure 3B. The Intermediate Cham-ber normally remains at atmosphericpressure through the Alarm Port con-nection and the valve trim to the nor-mally open Automatic Drain Valve(Item 6, Fig. 4). Having the Intermedi-ate Chamber, Figure 3B, open to at-mosphere is critical to the DPV-1 Valveremaining set, otherwise the full result-ing pressure of the system air pressureon top of the Clapper Assembly cannot
be realized. For example, if the sys-tem air pressure is 40 psi (2,7 bar) andthere was 25 psi (1,7 bar) pressuretrapped in the Intermediate Chamber,the resulting pressure across the topof the Clapper would only be 15 psi(1,0 bar).This pressure would be insuf-ficient to hold the Clapper Assemblyclosed against a water supply pres-sure of 100 psi (6,9 bar). It is for thisreason that the plunger of the Auto-matic Drain Valve must be depressedduring several of the resetting steps,as well as during inspections, makingcertain that the Automatic Drain Valveis open.
When one or more automatic sprin-klers operate in response to a fire, airpressure within the system piping isrelieved through the open sprinklers.When the air pressure is sufficientlyreduced, the water pressure over-comes the differential holding theClapper Assembly closed and theClapper Assembly swings clear of thewater seat, as shown in Figure 3C,This action permits water flow into thesystem piping and subsequently to bedischarged from any open sprinklers.Also, with the Clapper Assembly open,the intermediate chamber is pressur-ized and water flows through the alarmport (Ref. Figure 3B) at the rear of theDPV-1 Valve to actuate system waterflow alarms. The flow from the alarmport is also sufficient to close the oth-erwise normally open Automatic DrainValve (Ref. Figure 4 or 5).
After a valve actuation and upon sub-sequent closing of a system main con-trol valve to stop water flow, the Clap-per Assembly will latch open as shownin Figure 3D. Latching open of theDPV-1 will permit complete draining ofthe system (including any loose scale)through the main drain port.
During the valve resetting procedureand after the system is completelydrained, the external reset knob canbe easily depressed to externally un-latch the Clapper Assembly as shownin Figure 3E. As such, the ClapperAssembly is returned to its normal setposition to facilitate setting of the drypipe sprinkler system, without havingto remove the Handhole Cover.
InstallationNOTES
Proper operation of the Model DPV-1Dry Pipe Valve depends upon its trimbeing installed in accordance with theinstructions given in this TechnicalData Sheet. Failure to follow the ap-propriate trim diagram may preventthe DPV-1 Valve from functioningproperly, as well as void listings, ap-provals, and the manufacturer’s war-ranties.
Failure to latch open the Clapper As-sembly prior to a system hydrostatictest may result in damage to the Clap-per Assembly.
The DPV-1 Valve must be installed ina readily visible and accessible loca-tion.
The DPV-1 Valve and associated trimmust be maintained at a minimum tem-perature of 40°F/4°C.
Heat tracing of the DPV-1 Valve or itsassociated trim is not permitted. Heattracing can result in the formation ofhardened mineral deposits that are ca-pable of preventing proper operation.
The Model DPV-1 Dry Pipe Valve is tobe installed in accordance with the fol-lowing criteria:
Step 1. All nipples, fittings, and de-vices must be clean and free of scaleand burrs before installation. Use pipethread sealant sparingly on male pipethreads only.
Step 2. The DPV-1 Valve must betrimmed in accordance with Figures 4or 5, as applicable. If the DPV-1 is tobe equipped with a Model ACC-1 DryPipe Valve Accelerator, refer to theTechnical Data Sheet for the ACC-1and install the ACC-1 using the Accel-erator Trim as shown in Figure 6.
Step 3. Care must be taken to makesure that check valves, strainers,globe valves, etc. are installed with theflow arrows in the proper direction.
Step 4. Drain tubing to the drip funnelmust be installed with smooth bendsthat will not restrict flow.
Step 5. The main drain and drip funneldrain may be interconnected provideda check valve is located at least 12inches (300 mm) below the drip funnel.The Low Body Drain Valve (Item 9 -Fig. 4) may be piped so as to dischargeinto the Drip Funnel or to a separatedrain.
Step 6. Suitable provision must bemade for disposal of drain water.Drainage water must be directed suchthat it will not cause accidental dam-age to property or danger to persons.
Page 5 of 12TFP1041
OBSOLETE
FIGURE 44 INCH (DN100) MODEL DPV-1 DRY PIPE VALVES
— EXPLODED VIEW OF VALVE TRIM —
LOCATIONFOR OPTIONALELECTRICALLYSUPERVISEDN.O. ALARM
(BVS-3/4")VALVE
CONTROL
3228
3710
37 382839
2834
19
27
4
32
325
2632
3822
3
1
12
13
14
25
1832
25626
32
8
42
11
31
2431
4132
299
40
2633
23
35
21
30
2
3
NOTES:
1. SEE FIGURE 3 FOR VALVEPORT IDENTIFICATION.
ROUTE 1/4" TUBING, ITEM 16,TO DRIP FUNNEL, ITEM 14.
2.TINT)
(GREEN15
36
17
20
7
16
17
30
SLOPE 3/4" ANGLE VALVE,ITEM 9, DOWN TOWARD BACK
3.
OF VALVE TO FACILITATESUFFICIENT LOW BODY
SLOPEDOWN
9
DRAINAGE.
4 INCH (DN100)MODEL DPV-1
DRY PIPE VALVE
NO.
1 250 psi/ 1750 kPa
1
QTY.
92-343-1-012
DESCRIPTION P/N
92-343-1-005
46-005-1-002
92-343-1-02046-048-1-004
52-793-1-00446-050-1-004
46-049-1-00446-048-1-005
46-049-1-00546-048-1-009
92-211-1-005
2
3
4
56
78
910
11
300 psi/ 2000 kPa
1/4" Gauge Test
1/4" Pressure
1/2" Angle ValveModel AD-1
1/2" Ball Valve1/2" Swing
3/4" Angle Valve3/4" Swing
2" Angle ValveDrip Funnel
1
2
11
11
11
11
1
Water PressureGauge
Air PressureGauge
Valve
Relief Valve
AutomaticDrain Valve
Check Valve
Check Valve
Connector
. . .
. . . .
. . .
. . . .
. . . . . . . . . . .
. . . . . . . . . . .
. . . . . . . . . . . .
. . . . . . .
. . . . . . .
. . . . . .
. . . . . .
. . . . . . . .
NO.
13
QTY.DESCRIPTION P/N
92-211-1-003
92-343-1-00714
Drip Funnel
Drip Funnel
1
1
3/4" x 1/2" x 3/4"
1" x 1" x 1/2"3
1
CH
CH
25
17181920212223
26
27
1/4" Tube,
1/4" Plug1/2" Plug3/4" Plug1" Plug
1/2" 90° Elbow1/2" 45° Elbow1/2" Tee1/2" x 1/4" x 1/2"
1/2" x 1/2" x 1/4"
CH12111
112
3
1
CHCHCHCH
CHCHCH
CH
CH
1/2" Union3/4" Union
11
CHCH
1592-032-1-002
3/32" Vent
29
16
24
Bracket
Fitting
24" Long
Reducing Tee
Reducing Tee
Reducing Tee
Reducing Tee
. . . . . . .
. . . . . . . . .
. . . . . . . . .
. . . . . . . . .. . . . . . . . . .
. . . .
. . . .. . . . . . . . .
. . . . . . . .
. . . . . . . .
. . . . . . . . . .
. . . . . . . . . . .
. . . . . . . . .
. . . . .
. . . . .
. . . . .
. . . . .
1
CH: Common Hardware
3334
3536
38
39404142
1/4" x 3" Nipple
1/2" x 1-1/2"
1/2" x 2" Nipple1/2" x 2-1/2"
1/2" x 3" Nipple1/2" x 3-1/2"
3/4" x 1-1/2"
3/4" x 2" Nipple3/4" x 3" Nipple1" x 4" Nipple2" x 4-1/2"
2
71
11
1
21
1
CH
CHCH
CHCH
CH
CHCH
CH
32Nipple
Nipple
Nipple
Nipple
. . . .
. . . .
. . . .
. . . .
. . . . .
. . . . . . . . . . .
. . . . . . . . . . .
. . . . . . . . . . .
. . . . . . . . . . .
Nipple 1 CH. . . . . . . . . . .
28
30
12
1 CH. . . .
are GalvanizedAll Fittings and Nipples
NO. QTY.DESCRIPTION P/N
1/2" x Close2 CH
31Nipple . . . . . . . . . . .
37 3/4" x Close2 CHNipple . . . . . . . . . . .
Page 6 of 12 TFP1041
OBSOLETE
Step 7. Unused pressure alarm switchand/or water motor alarm connectionsmust be plugged.
Step 8. The Pressure Relief Valve pro-vided with the Valve Trim is factory setto relieve at a pressure of approxi-mately 45 psi (3,1 bar), which can typi-cally be used for a maximum normalsystem air pressure of 40 psi (2,8 bar).The Pressure Relief Valve may be re-set to a lower or higher pressure; how-ever, it must be be reset to relieve at apressure which is in accordance withthe requirements of the Authority Hav-ing Jurisdiction.
To reset the Pressure Relief Valve, firstloosen the jam nut and then adjust thecap accordingly — clockwise for ahigher pressure setting or counter-clockwise for a lower pressure setting.After verifying the desired pressuresetting, tighten the jam nut.
Step 9. Installation of an Air Mainte-nance Device, as described in theTechnical Data Section, is recom-mended.
Step 10. An Inspector’s Test Connec-tion as required By NFPA 13 must be
provided on the system piping at themost remote location from the ModelDPV-1 Valve.
Step 11. Conduit and electrical con-nections are to be made in accordancewith the requirements of the authorityhaving jurisdiction and/or the NationalElectric Code.
Step 12. Before a system hydrostatictest is performed in accordance withNFPA 13 system acceptance test re-quirements, the Clapper Assembly isto be manually latched open (Ref. Fig.3D); the Automatic Drain Valve (Item 6,Fig. 4) is to be temporarily replacedwith a 1/2 inch NPT plug, and theHandhole Cover Bolts are to be tight-ened using a cross-draw sequence.
Valve SettingProcedureSteps 1 through 12 are to be per-formed when initially setting the ModelDPV-1 Dry Pipe Valve; after an opera-tional test of the fire protection system;or, after system operation due to a fire.
Step 1. Close the Main Control Valve,and close the Air Supply Control Valve(Fig. 5). Close the Accelerator ControlValve (Fig. 6) as applicable.
Step 2. Open the Main Drain Valve(Fig. 5) and all auxiliary drains in thesystem. Close the auxiliary drainvalves after water ceases to discharge.Leave the Main Drain Valve open.
Step 3. Depress the plunger of theAutomatic Drain Valve (Fig. 5) to verifythat it is open and that the DPV-1 Valveis completely drained.
Step 4. Open the Optional Alarm Con-trol Valve (Fig. 4), as applicable, if itwas closed to silence local alarms.
Step 5. As necessary, replace allsprinklers that have operated. Re-
FIGURE 54 INCH (DN100) MODEL DPV-1 DRY PIPE VALVES— ASSEMBLY PROCEDURE FOR VALVE TRIM —
AUTOMATICDRAIN VALVE
TEST VALVEALARM
(NORMALLYCLOSED)
CLOSED)(NORMALLY
DRAIN VALVEMAIN
2 INCH NPTCONNECTION
FUNNELDRIP
AIR SUPPLYCONTROL VALVE
(NORMALLYOPEN)
1/2 INCH NPTCONNECTIONFOR SYSTEMAIR SUPPLY
TO DRAIN
PRESSUREGAUGE
AIR SUPPLYSYSTEM
1-1/4 INCH NPTCONNECTION
TO DRAIN
DRAIN VALVELOW BODY
(NORMALLYCLOSED)
D
B1 INCH NPT
CONNECTIONFOR LOCALSPRINKLER
PRESSUREGAUGE
WATER SUPPLYSYSTEM
A
1/2 INCH NPTCONNECTION
FOR OPTIONALACCELERATOR
C
3/4 INCH NPTCONNECTIONFOR WATER
MOTOR ALARM
1/2 INCH NPTCONNECTION
FOR WATERFLOWPRESSURE ALARM
SWITCHSLOPEDOWN
B
3/4 INCH NPTCONNECTION
TO DRAIN
1/4"TUBING
NOTES:
2. SEE FIGURE 3 FOR VALVE PORTIDENTIFICATION.
1. INSTALL TRIM ASSEMBLIES INALPHABETICAL ORDER.
SLOPE ASSEMBLY B DOWN TOWARDBACK OF VALVE TO FACILITATE
4.
SUFFICIENT LOW BODY DRAINAGE.
3. ROUTE 1/4" TUBING TO DRIP FUNNEL.
4 INCH (DN100)MODEL DPV-1
DRY PIPE VALVE
Page 7 of 12TFP1041
OBSOLETE
placement sprinklers must be of thesame type and temperature rating asthose which have operated.
NOTEIn order to prevent the possibility of asubsequent operation of an over-heated solder type sprinkler, any sol-der type sprinklers which were possi-bly exposed to a temperature greaterthan their maximum rated ambientmust be replaced.
Step 6. Push down on the Reset Knob(Fig. 3E) to allow the Clapper Assem-bly to reseat.
Step 7. Pressurize the system with air(or nitrogen) to 20 psi (1,4 bar), andthen individually open all auxiliarydrain valves in the system piping todrain any remaining water in trappedsections. Close each drain valve assoon as water ceases to discharge.Also partially open the Low Body DrainValve (Fig. 5) to assure that the riser iscompletely drained. Close the LowBody Drain Valve as soon as waterceases to discharge.
Step 8. Refer to Table A and then re-
store the system to the normal systemair pressure as necessary to hold theDPV-1 Valve closed.
Step 9. Depress the plunger on theAutomatic Drain Valve to make sure itis open and that there is no air dis-charging.
The absence of air discharging fromthe Automatic Drain Valve is an indica-tion of a properly set air seat within theDPV-1 Valve. If air is discharging, referto the Care and Maintenance sectionunder Automatic Drain Valve Inspec-tion to determine/correct the cause ofthe leakage problem.
Step 10. If the DPV-1 is equipped witha Model ACC-1 Dry Pipe Valve Accel-erator, refer to the Technical DataSheet for the ACC-1 for resetting in-structions, and reset the ACC-1.
Step 11. Partially open the Main Con-trol Valve. Slowly close the Main DrainValve as soon as water dischargesfrom the drain connection.
Depress the plunger on the AutomaticDrain Valve to make sure that it is openand that there is no water discharging.
The absence of water dischargingfrom the Automatic Drain Valve is anindication of a properly set water seatwithin the DPV-1 Valve. If water is dis-charging, refer to the Care and Main-tenance section under the AutomaticDrain Valve Inspection to deter-mine/correct the cause of the leakageproblem.
If there are no leaks, the DPV-1 Valveis ready to be placed in service and theMain Control Valve must then be fullyopened.
NOTEAfter setting a fire protection system,notify the proper authorities and ad-vise those responsible for monitoringproprietary and/or central stationalarms.
Step 12. Once a week after a valve isreset following an operational test orsystem operation, the Low Body DrainValve (and any low point drain valves)should be partially opened (and thensubsequently closed) to relieve drain-back water. Continue this procedureuntil drain-back water is no longer pre-sent.
FIGURE 64 INCH (DN100) MODEL DPV-1 DRY PIPE VALVE
— OPTIONAL MODEL ACC-1 ACCELERATOR AND ACCELERATOR TRIM —
ACCELERATORDRY PIPE VALVE
PRESSUREACCELERATOR
GAUGE
ACCELERATORCONTROL VALVE
(NORMALLY OPEN)TO SYSTEM PIPING
82
7
1
7
5
104
76
6
7
5
9
NO
1 250 psi/ 1750 kPa
1
QTY
92-343-1-012
DESCRIPTION P/N
52-353-1-0052 1/2" Y-Strainer 1
Air PressureGauge . . . . . . . . . . .
. . . .
56 1/2" 90° Elbow 3 CH
1/2" Union 2 CH. . . .
. . . . . . . .
89
1/2" x 1-1/2"
1/2" x 3" Nipple1/2" x 3-1/2"
61
1
CHCH
CH
7Nipple
Nipple
. . . .. . . . . . . . . . .
. . . . . . . . . . .
Nipple
46-047-1-0043 1/2" Globe Valve 1. . .
46-049-1-0044 1/2" Swing
1Check Valve . . . . . .
10 1/2" x 5-1/2"1 CH. . . . . . . . . . .
7
6
7
1/2" NPT CONNECTION
MODEL DPV-1DRY PIPE VALVE
WITH TRIMRESETKNOB
PLUGVENT
ACCESS PLUGRESTRICTION
ACCELERATORDRY PIPE VALVE
PRESSUREACCELERATOR
GAUGE
ACCELERATORTRIM CONNECTIONTO DRY PIPE VALVE
INTERMEDIATECHAMBER
1/2" NPT
3
CH: Common Hardware
4 INCH (DN100)
Page 8 of 12 TFP1041
OBSOLETE
Care andMaintenanceThe following procedures and inspec-tions should be performed as indi-cated, in addition to any specific re-quirements of the NFPA, and anyimpairment must be immediately cor-rected.
The owner is responsible for the in-spection, testing, and maintenance oftheir fire protection system and de-vices in compliance with this docu-ment, as well as with the applicablestandards of the National Fire Protec-tion Association (e.g., NFPA 25), inaddition to the standards of anyauthority having jurisdiction. The in-stalling contractor or product manufac-turer should be contacted relative toany questions.
It is recommended that automaticspr inkler systems be inspected,tested, and maintained by a qualifiedInspection Service.
NOTESThe operational test procedure andwaterflow pressure alarm test proce-dure will result in operation of the as-sociated alarms. Consequently, notifi-cation must first be given to the ownerand the fire department, central sta-tion, or other signal station to which thealarms are connected.
Before closing a fire protection systemmain control valve for maintenancework on the fire protection system thatit controls, permission to shut down theaffected fire protection systems mustfirst be obtained from the properauthorities and all personnel who maybe affected by this decision must benotified.
Annual Operation Test ProcedureProper operation of the DPV-1 Valve(i.e., opening of the DPV-1 Valve dur-ing a fire condition) should be verifiedat least once a year as follows:
Step 1. If water must be preventedfrom flowing beyond the riser, performthe following steps.
• Close the Main Control Valve.
• Open the Main Drain Valve.
• Open the Main Control Valve oneturn beyond the position at whichwater just begins to flow from theMain Drain Valve.
• Close the Main Drain Valve.
Step 2. Open the system’s Inspector’sTest Connection.
Step 3. Verify that the DPV-1 Valve hasoperated, as indicated by the flow ofwater into the system and that all wa-terflow alarms operate properly.
Step 4. Close the system’s Main Con-trol Valve.
Step 5. Reset the DPV-1 Valve in ac-cordance with the Valve Setting Proce-dure.
NOTEIt is recommended that the require-ment of NFPA 25 to annually inspectthe inside of the valve be performed atthis time and prior to resetting theDPV-1 Valve. Refer to the AutomaticDrain Valve Inspection sub-sectionSteps 2 through 5 for instructions withregard to the inspection of the ClapperFacing.
Quarterly Waterflow Alarm TestProcedureTesting of the system waterflow alarmsshould be performed quarterly. To testthe waterflow alarm, open the AlarmTest Valve, which will allow a flow ofwater to the Waterflow Pressure AlarmSwitch and/or Water Motor Alarm.Upon satisfactory completion of thetest, close the Alarm Test Valve.
Water Pressure InspectionThe Water Pressure Gauge is to beinspected each week to ensure thatnormal system water pressure is beingmaintained.
Air Pressure InspectionThe Air Pressure Gauge is to be in-spected each week to ensure that nor-mal system air pressure is being main-tained.
FIGURE 74 INCH (DN100) MODEL DPV-1 DRY PIPE VALVE
— NOMINAL INSTALLATION DIMENSIONS —
6"(150 mm)
17-1/4"(440 mm)
2-1/2" (65 mm)
12"(300 mm)
24-1/2"(625 mm)
14"(355 mm)
12"(300 mm)
15"(380 mm)
OPTIONALMODEL ACC-1
ACCELERATOR& TRIM
13-5/8"
FxF or FxG(346.1 mm)
Page 9 of 12TFP1041
OBSOLETE
Automatic Drain Valve InspectionThe Automatic Drain Valve should beinspected each week by depressingthe plunger and checking to ensurethat the Automatic Drain Valve is notdischarging water and/or air. A dis-charge of water and/or air is an indica-tion that the air and/or water seats areleaking, which could subsequentlycause a false operation should the in-termediate chamber become inadver-tently pressurized.
If leakage is present, take the DPV-1Valve out of service (i.e., close themain control valve, open the maindrain valve, close the air supply controlvalve, close the Accelerator ControlValve as applicable, and open the In-spector’s Test Connection to relievethe system air pressure to 0 psig asindicated on the System Air PressureGauge), and then after removing theHandhole Cover, perform the followingsteps:
Step 1. Make sure that the Seat Ringis clean and free of any nicks or signifi-cant scratches.
Step 2. Remove the Clapper Assem-bly from the valve by first pulling outthe Hinge Pin.
Step 3. Disassemble the Clapper Fac-ing Retainer from the Clapper so thatthe Clapper Facing can be removedand inspected. Make sure that theClapper Facing does not show signs ofcompression set, damage, etc. Re-place the Clapper Facing if there is anysigns of wear.
Step 4. Clean the Clapper Facing,Clapper, and Clapper Facing Retainer,and then reassemble the Clapper As-sembly.
Step 5. Reinstall the Clapper Assem-bly with its Hinge Pin and then reinstallthe Handhole Cover.
LimitedWarrantyProducts manufactured by Tyco FireProducts are warranted solely to theoriginal Buyer for ten (10) yearsagainst defects in material and work-manship when paid for and properlyinstalled and maintained under normaluse and service. This warranty will ex-pire ten (10) years from date of ship-ment by Tyco Fire Products. No war-ranty is given for products orcomponents manufactured by compa-nies not affiliated by ownership withTyco Fire Products or for products andcomponents which have been subjectto misuse, improper installation, corro-sion, or which have not been installed,maintained, modified or repaired in ac-cordance with applicable Standards ofthe National Fire Protection Associa-tion, and/or the standards of any otherAuthorities Having Jurisdiction. Mate-rials found by Tyco Fire Products to bedefective shall be either repaired orreplaced, at Tyco Fire Products’ soleoption. Tyco Fire Products neither as-sumes, nor authorizes any person toassume for it, any other obligation inconnection with the sale of products orparts of products. Tyco Fire Productsshall not be responsible for sprinklersystem design errors or inaccurate orincomplete information supplied byBuyer or Buyer’s representatives.
IN NO EVENT SHALL TYCO FIREPRODUCTS BE LIABLE, IN CON-TRACT, TORT, STRICT LIABILITY ORUNDER ANY OTHER LEGAL THE-ORY, FOR INCIDENTAL, INDIRECT,SPECIAL OR CONSEQUENTIALDAMAGES, INCLUDING BUT NOTLIMITED TO LABOR CHARGES, RE-GARDLESS OF WHETHER TYCOFIRE PRODUCTS WAS INFORMEDABOUT THE POSSIBILITY OF SUCHDAMAGES, AND IN NO EVENTSHALL TYCO FIRE PRODUCTS’ LI-ABILITY EXCEED AN AMOUNTEQUAL TO THE SALES PRICE.
THE FOREGOING WARRANTY ISMADE IN LIEU OF ANY AND ALLOTHER WARRANTIES EXPRESS ORIMPLIED, INCLUDING WARRANTIESOF MERCHANTABILITY AND FIT-NESS FOR A PARTICULAR PUR-POSE.
Page 10 of 12 TFP1041
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OrderingProcedureAll orders for Model DPV-1 Dry PipeValves, trim, accessories, and replace-ment parts must include the descrip-tion and Part Number (P/N), whereapplicable.
DPV-1 Valve withFactory AssembledGalvanized Trim:Specify: 4 Inch/DN100 Model DPV-1Dry Pipe Valve with Factory Assem-bled Galvanized Trim and (specify inletx outlet) end connections, P/N (spec-ify).
ANSI Drilled Flangex 4.50 inch(114,3 mm) O.D.Groove. . . . . . . . . . . . . . . . P/N 52-309-2-413
ANSI Drilled Flangex ANSI DrilledFlanged . . . . . . . . . . . . . . . P/N 52-309-2-013
ISO Drilled Flangex 4.50 inch(114,3 mm) O.D.Groove. . . . . . . . . . . . . . . . P/N 52-309-2-213
ISO Drilled Flangex ISO DrilledFlanged . . . . . . . . . . . . . . . P/N 52-309-2-113
DPV-1 Valve:Specify: 4 Inch/DN100 Model DPV-1Dry Pipe Valve with (specify inlet xoutlet) end connections, P/N (specify).
ANSI Drilled Flangex 4.50 inch(114,3 mm) O.D.Groove. . . . . . . . . . . . . . . . P/N 52-309-1-413
ANSI Drilled Flangex ANSI DrilledFlanged . . . . . . . . . . . . . . . P/N 52-309-1-013
ISO Drilled Flangex 4.50 inch(114,3 mm) O.D.Groove. . . . . . . . . . . . . . . . P/N 52-309-1-213
ISO Drilled Flangex ISO DrilledFlanged . . . . . . . . . . . . . . . P/N 52-309-1-113
Galvanized DPV-1 Trim(Ref. Figure F):Specify: 4 Inch DPV-1 Semi-Preas-sembled Galvanized Trim,P/N 52-309-2-001.
Optional Accelerator:Specify: Model ACC-1 Dry Pipe Accel-erator, P/N 52-311-1-001.
Optional “Standard Order”Galvanized Accelerator Trim:
Specify: Galvanized Accelerator Trimfor Model DPV-1 Dry Pipe Valve, P/N52-311-2-010.
Optional 600 PSI Water PressureGauge:
Specify: 600 PSI Water PressureGauge, P/N 92-343-1-004.
Accessories:Order the Technical Data Sheets forthe following, as applicable, for detailsand additional accessories:
Model PS10-2APotter ElectricWaterflowPressure AlarmSwitch . . . . . . . . . . . . . . . . P/N 54-281-1-002
Model WMA1Water MotorAlarm . . . . . . . . . . . . . . . . P/N 52-630-1-001
Model AMD-1Air MaintenanceDevice. . . . . . . . . . . . . . . . P/N 52-324-2-002
Model AMD-2Air MaintenanceDevice. . . . . . . . . . . . . . . . P/N 52-326-2-001
Model AMD-3NitrogenMaintenance De-vice . . . . . . . . . . . . . . . . . . P/N 52-328-2-001
Replacement Valve Parts:Specify: (description) for use with 4Inch/DN100 Model DPV-1 Dry PipeValve, P/N (see Figure 1).
Replacement Trim Parts :Specify: (description) for use with 4Inch/DN100 Model DPV-1 Dry PipeValve, P/N (see Figure 4).
Weights:The following are the nominal weights forthe valves and trim:
4 Inch (100 mm)Model DPV-1F x G Dry Pipe Valvewith Trim . . . . . . . . . . . . . . . . . . . . .107 lbs. (50 kg)4 Inch (100 mm)Model DPV-1F x F Dry Pipe Valvewith Trim . . . . . . . . . . . . . . . . . . . . .117 lbs. (55 kg)4 Inch (100 mm)Model DPV-1F x G Dry Pipe Valve . . . . . . . . . . . 67 lbs. (31 kg)4 Inch (100 mm)Model DPV-1F x F Dry Pipe Valve. . . . . . . . . . . . 77 lbs. (36 kg)4 Inch (100 mm) Valve Trim . . . . . . 30 lbs. (14 kg)
Page 11 of 12TFP1041
OBSOLETE
TYCO FIRE PRODUCTS, 451 North Cannon Avenue, Lansdale, Pennsylvania 19446
Page 12 of 12 TFP1041
OBSOLETE