customer service/sales: warning - tyco fire

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

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. . . . . . . .

of 12 TFP1041

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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


— 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

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— 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

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.

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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 . . . . . . . . . . .

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


FOR WATERFLOWPRESSURE ALARM

SWITCHSLOPEDOWN

B


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

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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.


— 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)

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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.


— 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)

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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.

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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)

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TYCO FIRE PRODUCTS, 451 North Cannon Avenue, Lansdale, Pennsylvania 19446

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