Tyco DPV-1, DN100, DN150, ACC-1 User Manual

Technical Services: Tel: [phone] / Fax: [phone]

Model DPV-1 Dry Pipe Valve, DN100 & DN150
Model ACC-1 Dry Pipe Valve Accelerator
European Conformity Valve Trim, 16 Bar

SECTIONS

General Description

DryPipeValve.........1

Accelerator . . . . . . . . . . . 1

TechnicalData..........5

Operating Principles

DryPipeValve.........9

Accelerator . . . . . . . . . . . 9

Installation ...........10

Valve Setting Procedure . . . . 10

Care and Maintenance . . . . 11

LimitedWarranty........12

Ordering Procedure . . . . . . 21

Summary Instructions . . . . . .

......... AppendicesA-G

TABLES

A - Air Pressure Requirements . 4

B - Trim Cross Reference . . . . 6

C - Accelerator Fill Times . . . 11

FIGURES

1A - DN100 Assembly . . . . . . 2

1B - DN150 Assembly . . . . . . 3

2 - Pressure Loss . . . . . . . . 4

3 - Valve Take-Out Dimensions . 5

4 - Accelerator Assembly . . . . 6

5-ValveOperation .......7

6-Accelerator“Set”.......8

7 - Accelerator “Tripped” . . . . 8

Valve Trim is illustrated in Figures
8 thru 15. Refer the Table B on
Page 5 for types of trim and corre­sponding figure and page number.

General
Description

DRY PIPE VALVE

The DN100and DN150, Model DPV-1
Dry Pipe Valves are differential valves
used to automatically control the flow
of water into a dry pipe fire protection
sprinkler systems upon operation of
one or more automatic sprinklers. The
DPV-1 also provides for actuation of
fire alarms upon system operation.
The Model DPV-1 features are as fol­lows:

• External reset.

• 16 bar pressure rating.

• Unique offset single clapper design

enabling a simple compact valve to
minimize installation labor.

• Ductile iron construction to ensure a
lightweight valve to minimize ship­ping cost.

• A variety of inlet and outlet connec­tions.

• Simple reset procedure through the
elimination of priming water.

Dry pipe sprinkler systems are used in
unheated warehouses, parking ga­rages, store windows, attic spaces,
loading docks, and other areas ex­posedtofreezingtemperatures,where
water filled pipe cannot be utilized.
When set for service, the dry pipe
sprinklersystemispressurizedwithair
(or nitrogen). The loss of pressure
through an operated automatic sprin­kler in response to heat from a fire
permits the DPV-1 Dry Pipe Valve to
open and allow a flow of water into the
sprinkler system piping. Table A es­tablishes the minimum required sys­tem air pressure that includes a safety
factor to help prevent false operations
that occur due to water supply fluctua­tions.

ACCELERATOR

TheoptionalModelACC-1Accelerator

Page 1 of 22 TFP1090

MARCH, 2006

Page2of22

TFP1090

6

7

8

9

2

CLAPPER

ASSEMBLY

11

12

13

14

15, 18

16

17

RESET

PLUNGER

PARTS

1

4

NO. QTY.DESCRIPTION REF.
1 ValveBody 1 NR

2

Air and Water
Seat

3

Handhole Cover

4 Handhole Cover
5 1/2-13 UNC x 1"

Hex Head Cap

6

Clapper

7

Clapper Facing
Clapper Facing

8

Retaining Plate

9

1/4-20 UNC x 1/2"
Socket Head Cap

10

Clapper Hinge
Pin

11

Reset Knob

12

Reset Spring

13 Reset Bushing See (c)1....

14 Reset Bushing

Reset Plunger

15

16 Reset Plunger See (c)1.....

1718Reset Latch

Subassembly 1 See (c).....

Dow Corning FS3452

Flourosilicone

3

.......

............

..........

....

.............

......

NR: Not Replaceable
CH: Common Hardware

...

1

NR

1

NR

See (b)Gasket 1..........

CHScrew 6...........

1

See (a)

1

See (a) or (b)

See (a)1....

See (a)7Screw...........

1

See (a)

1

See (c)

See (c)1.....

See (b) or (c)O-Ring 1...........

See (b) or (c)O-Ring 1..........

See (b) or (c)Grease, 1.5 g 1.....

10

5

FIGURE 1A

DN100 MODEL DPV-1 DRY PIPE VALVE

— ASSEMBLY —

REPLACEMENT PARTS
NO. DESCRIPTION P/N
(a) Clapper Assembly

Includes Items:
6through10

(b) Repair Parts Kit

Includes Items:
4, 7, 14, 15, 18

(c) Reset Plunger Parts Kit

Includes Items:

11through 18 92-309-1-405........

92-309-2-403.........

92-309-1-404.......

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Page 3 of 22

NO. QTY.DESCRIPTION REF.

1 ValveBody 1 NR.......

2 Air and Water
3 Water Seal

O-Ring .......... NR1

4

NRSeat 1............

NRAir Seal O-Ring 1....

NO. QTY.DESCRIPTION REF.
5 3/8-16 UNC x 1"

Socket Head Cap
Handhole Cover Clapper

6
7 Handhole Cover

9

10

CLAPPER

ASSEMBLY

11

12

NR8Screw...........

NR See (a)

11

... ..........

See (d)Gasket 1..........

14

15

16

RESET

PLUNGER

17

PARTS

18, 21

19

20

NO. QTY.DESCRIPTION REF.
8 5/8-11UNC x 1"

Hex Head Cap

9
10

Clapper Facing

11

Clapper Facing
Retaining Plate

12

1/4-20 UNC x 1/2"
Socket Head Cap

13

Clapper Hinge

Pin
14
15

16 Reset Bushing See (c)1....

17 Reset Bushing
18

19 Reset Plunger See (c)1.....

20 Reset Latch
21 Dow Corning FS3452

.............

Reset Knob
Reset Spring

Reset Plunger

Subassembly 1 See (c)
Flourosilicone

....

......

.....

NR: Not Replaceable
CH: Common Hardware

CHScrew 6...........

See (a) or (b)

1

See (a)1....

See (a)9Screw...........

See (a)

1

See (c)

1

See (c)1.....

See (b) or (c)O-Ring 1...........

See (b) or (c)O-Ring 1...........

See (b) or (c)Grease, 1.5 g 1.....

13

REPLACEMENT PARTS

NO. DESCRIPTION P/N
(a) Clapper Assembly

Includes Items:
9through13

(b) Repair Parts Kit

2

4

5

3

Includes Items:
7, 10, 17, 18, 21

(c) Reset Plunger Parts Kit

Includes Items:

14 through 21 92-309-1-405........

1

7

6

8

92-309-2-603.........

92-309-1-604......

FIGURE 1B

DN150 MODEL DPV-1 DRY PIPE VALVE

— ASSEMBLY —

Page4of22

Maximum

Water Supply

Pressure,

bar

1,4

System Air

Pressure

Range,

bar

0,7

TFP1090

0,60

0,50

0,40

4,1
5,5
6,9

8,3
10,0
11,4
12,8
14,1

1,0 - 1,6
1,4 - 1,9
1,7 - 2,3
2,1 - 2,6
2,4 - 3,0
2,8 - 3,3
3,1 - 3,7

3,4 - 4,0
15,5 3,8 - 4,3
16,0 4,1 - 4,6

TABLE A

SYSTEM AIR PRESSURE

REQUIREMENTS

is a quick opening device that is in­tended to reduce the time for valve
operation foll owi ng the operation of
one or more automatic sprinklers. The
Model ACC-1 Accelera tor automat­ically adjusts to both small and slow
changes in system pressure, but trips
when there is a rapid and steady drop
in pressure (as in the case of a sprin­kler operation). Upon tripping, the Ac­celerator transmits system air pres­sure to the intermediate chamber of
the Model DPV-1 Dry Pipe Valve. This
neutralizes the differential pressure
holding the Mode l DPV-1 Dry Pipe
Valve closed and permits it to open.

The Model ACC-1 Accelerator has a
unique, positive action, internal anti­flood device a nd a ball float which
combine to prevent water and water
borne debris from entering the more
sensitive operating areas of the accel­erator. The anti-flood device seals and
latches immediately upon operation of
the Model ACC-1 Accelerator without
waiting for a pressure build-up in the
intermediate chamber of the dry pipe
valve. The latching feature keeps the
anti-flood device sealed, even while
the system is being drained. The ball
float seals the pilot chamber inlet port
if there is an inadvertent trip of the dry
pipe valve, due for example, to an air
compressor failure combined with a
slow loss in system air pressuredue to
a leak.

0,30

0,20

0,10
0,09

0,08
0,07

NOMINAL PRESSURE DROP IN BAR

0,06

0,05

0,04

0,03

0,02

2000 3000 10000700050001000

FLOW RATE IN LITRES PER MINUTE (LPM)

FIGURE 2

DN100 and DN150 MODEL DPV-1 DRY PIPE VALVE

— NOMINAL PRESSURE LOSS VERSUS FLOW —

WARNING

TheModelDPV-1DryPipe Valves and
Model ACC-1 Dry Pipe Valve Accel­erator described herein must be in­stalled and maintained in compliance
with this document in addition to the
standards recognized by the Approval
agency, in addition to any other
authoritieshaving jurisdiction. Failure

to do so may impair the perform­ance of these devices.

The owner is responsible for maintain­ing their fire protection system andde­vices in proper operating condition.
The installing contractor or m anufac­turer should be contacted with any
questions.

DN100

DN150

TFP1090

00

50

Page 5 of 22

Technical
Data

Approvals:

The DN100 and DN150 Model DPV-1
Dry Pipe Valves with or without Model
ACC-1 Dry Pipe Valve Accelerator are
FM, LPCB, VDS, and CE Approved
with European Conformity Valve Trim
(Ref. Figures 8 thru 15).

DryPipeValve:

The DN100 and DN150, Model DPV-1
Dry Pipe Valves are for vertical instal­lations (flow going up), and they are
rated for use at a maximum service
pressure of 16 bar. The nominal pres­sure loss versus flow is shown in Fig­ure 2, and the valve take-out dimen­sions are shown in Figure 3.

Flanged connec tions are drilled per
ISO 2084 ( PN10/16) or ANSI B16.1
(Class 125). The grooved outlet con­nections, as applicable, are cut in ac­cordance with standard groove speci­fications for steel pip e. They a re
suitable for use with grooved end pipe
couplings that are listed or approved
for fire protection system service.

Threaded port connections are per
ISO 7/1 to readily accept the trim ar­rangement detaile d in Fig ur es 8 -1 5 .

Components of the DN100 DPV-1
Valve are shown in Figure 1A, and
components of the DN150 DPV-1
Valve are shown in Figure 1B. The
Body and Handhole Cover are ductile
iron. The Handhole Cover Gasket is
neoprene, and the Clapper Facing is
EPDM. The Air/Water Seat Ring is
brass, the Clapper is c opper, and both
the Clapper Retaining Plate and Latch
arebronze. The Hinge Pin is aluminum
bronze, and the fasteners for the
Handhole Cover are carbon steel.

Valve Trim:

The Valve Trim is illustrated in Figures
8 and 15 (Ref. Table B). The Valve
Trim forms a part of the laboratory
approval of the DPV-1 Valve and is
necessary for the proper operation of
theDPV-1 Valve. Eachpackage of trim
includes the following items:

• Water Supply Pressure Gauge

• System Air Pressure Gauge

• Main Drain Valve

• Low Body Drain Valve

• Alarm Test Valve

• Automatic Drain Valve

• Provision For An Optional

Accelerator

Alarm Test Valve AcceleratorValve Size

DN100

üü ü138

üüü1510

üüü 1712

üüü1914

DN150 Three-Way Standard Yes No

üü ü 149

üüü1611

üü ü 1813

üüü 2015

TABLE B

REFERENCE FOR CORRESPONDING

FIGURE NUMBER AND PAGE NUMBER

— EUROPEAN CONFORMITY VALVE TRIM —

346 mm

FxF, FxG,

or GxG

DN1

DN1

FIGURE 3

DN100 and DN150 MODEL DPV-1 DRY PIPE VALVE

— TAKE-OUT DIMENSIONS —

Air Supply:

TableA shows the system air pressure
requirementsas a function ofthewater
supply pressure. The air (or nitrogen)
pressurein the sprinkler system is rec­ommended to be automatically main­tained by using one of the following
pressure maintenance devices, as ap­propriate:

• Model AMD-1 Air Maintenance De­vice (pressure reducing type).

Quick Opening Device:

As an option, the Model DPV-1 Dry
Pipe Valve m ay be acquired with the
Model ACC-1 M echanical Dry Pipe
Valve Accelerator (Ref. Figure 4) The
ACC-1 is used to reduce the time to
valve actuation following the operation
of one or more automatic sprinklers.

Patents:

U.S.A. Patent No. 6 ,557,645 and
4,570,719.

• Model AMD-2 Air Maintenance De­vice (compressor control type).

• Model AMD-3 Nitroge n Mainte­nance Device (high pressure reduc­ing type).

Figure

Number

Page

Number

406 mm

FxF, FxG,

or GxG

Page6of22

NO. DESCRIPTION QTY. P/N

1Base 1 NR
2 Cover 1 NR
3 Upper Diaphragm

Plate 1 See (c)

4 Pivot Plate

Assembly 1 See (b)
aSpirolPin 1
b Pivot Plate 1

5 Plunger 1 See (a)

a Pan Hd. Machine

Screw 1
b Upper Diaphragm

Retaining Ring 2
c Upper Diaphragm 1
dJamNut 1

6 Exhaust Valve 1 See (a)

a Upper Plug 1
b Washer 1
c Lower Diaphragm 1
d Lower Plug 1
e O-Ring* 1
f O-Ring Retainer 1
g Exhaust Valve Screw 1

7 Rd. Head Machine

Screw,

1/4"-20 UNC x 5/8" 6 See (c)

8 Cover Gasket 1 See (a)
9 Vent Plug 1 See (c )
10 O-Ring* 1 See(a)
11 Restriction 1 See (a)
12 Restriction Access

Plug 1 See (c)

13 Pan Hd. Machine

Screw,

No. 10-32 UNF x 5/8" 4 See (b)

14 Cotter Pin 1 See (b)
15 Lever 1 See (b)
16 Retaining Ring 1 See (b)
17 Anti-Flood Valve 1 See (b)
18 Relief Valve 1 See (b)
19 Spring 1 See (b)
20 Relief Valve Seat 1 See (b)
21 O-Ring* 1 See (b)
22 Seal Washer 1 See (b)
23 Latch 1 See ( a)
24 Fillerster Hd.

Machine Screw,

1/4"-20 UNC x 1-1/2" 8 See (c)

25 Plug Seat 1 See (c)
26 O-Ring* 1 See (c)
27 O-Ring* 1 See (a)
28 Reset Knob 1 See (c)
29 Anti-Flood Seat

Assembly

w/Ball Float 1 See (b)

a Insert 1
b Seal 1
c Guide 1
dBall 1
eClip 1
f O-Ring* 1

* Requires thin film of

FS3452 Fluorosilicone Grease

(a) Repair Parts Kit (a)

Includes Items 5, 6, 8,

10, 11, 23, 27 &

1.5 grams of FS3452 92-311- 1-116

(b) Replacement Parts

Kit (b) Includes Item s

4, 13-22, 29 &

1.5 grams of FS3452 92-311- 1-117

(c) Replacement Parts

Kit (c) Includes Item s

3, 7, 9, 12, 24-26, 28,

& 1.5 grams of FS3452 92-311-1-118

NR: Not Replaceable

TFP1090

FIGURE 4

MODEL ACC-1 ACCELERATOR ASSEMBLY

TFP1090

O

Page 7 of 22

DN25

AIR SUPPLY

PORT

01

DN15

WATER

SUPPLY

PRESSURE

& ALARM

TEST PORT

02

CLAPPER

ASSEMBLY

LATCHED

OPEN

04

DN20

LOW BODY

DRAIN

PORT

AIR PRESSURE

TO SYSTEM

FROM

WATER SUPPLY

FIGURE 5A

SET POSITION

DRAIN FROM

SYSTEM

WATER SUPPLY

SHUT OFF

CLAPPER

ASSEMBLY

IN SET

POSITION

DN20 ALARM

PORT OPEN TO

ATMOSPHERE

03

WATER

SEAT

VALVE

WATERWAY

RESET

ASSEMBLY

CLAPPER

LATCH

DN50

MAIN DRAIN

05

PORT

CLAPPER LATCH

PIVOTS TOALLOW

CLAPPER ASSEMBLY

TO FULLY OPEN

CLAPPER

ASSEMBLY

FIGURE 5B

SET POSITION

INTERMEDIATE

CHAMBER

CLAPPER

ASSEMBLY

FULLY OPEN

AIR

SEAT

ALARM

03

PORT

INTERMEDIATE

CHAMBER

CLAPPER

LATCH

PIVOTS TO

UNLATCH
CLAPPER

ASSEMBLY

WATERFL

TO SYSTEM

WATER SUPPLY

W

FROM

FIGURE 5C

OPERATED POSITION

DRAIN FROM

SYSTEM

COMPLETE

WATER SUPPLY

SHUT OFF

ALARM PORT
WATERFLOW

TO ALARM

PUSH HERE

TO RESET

VALVE

RESET

KNOB

CLAPPER
ASSEMBLY
RESEATED

FIGURE 5D

DRAIN POSITION

FIGURE 5E

RESET POSITION

FIGURE 5

MODEL DPV-1 DRY PIPE VALVE (DN100 SHOWN)

— SET AND OPEN POSITIONS —

Page8of22

TFP1090

FIGURE 6

MODEL ACC-1 ACCELERATOR IN SET POSITION

FIGURE 7

MODEL ACC-1 ACCELERATOR IN TRIPPED POSITION

TFP1090

Page 9 of 22

Operating
Principles

DRY PIPE VALVE

The Model DPV-1 Dry Pipe Valve is a
differential type valve that utilizes a
substantiallylowersystem(airor nitro­gen) pressure than the supply (water)
pressure, to maintain the set position
shown in Figure 5A. The differential
nature of the DPV-1 is based on the
area difference between the air seat
and the water seat in combination with
the ratio of the radial difference from
the Hing e Pi n to the center of the
Water Seat and the Hinge Pin to the
center of the Air Seat. The difference
is such that the DPV-1 has a nominal
trip ratio of 5,5:1 (water to air).

Table A establishes the minimum re­quired system air pressure th at in­cludes a safety factor to help prevent
false operations that occur due to
water supply fluctuations.

The Intermediate Chamber of the
DPV-1isformedbytheareabetween
the Air Seat and Water Seat as shown
in Figure 5B. The Intermediate Cham­ber normally remains at atmospheric
pressure through the Alarm Port con­nection and the valve trim to the nor­mally open Automatic Drain Valve
(Ref. Figures 8 thru 15). Having the
Intermediate Chamber, Figure 5B,
open to atmosphere is critical to the
DPV-1 Valve remaining set, otherwise
the full resulting pressure of the sys­tem air pressure on top of the Clapper
Assembly cannot be realized. For ex­ample, if the system air pressure is
1,7 bar and there was 1,0 bar pres­sure trapped in the Intermediate
Chamber, the r esulting pressure
across the top of the Clapper would
only be 0,7 bar. This pressure would
be insufficient to hold the Clapper As­sembly closed against a water supply
pressure of 6,9 bar.

When one or more automatic sprin­klers operate in response to a fire, air
pressure within the system piping is
relieved through the open sprinklers.
When the air pressure is sufficiently
reduced, the water pressure over­comes the differential holding the
Clapper Assembly closed and the
Clapper Assembly swings clear of the
water seat, as shown in Figure 5C,
This action permits water flow into the
system piping and subsequently to be
discharged from any open sprinklers.
Also,withtheClapperAssemblyopen,
the intermediate chamber is pressur­izedand water flows through the alarm
port (Ref. Figure 5B) at the rear of the
DPV-1 Valve. As the flow through the
alarm port exceeds the drain capacity

of the Automatic Drain Valve, the
alarm line is pressurized to actuate
system water flow alarms.

After a valve actuation and upon sub­sequent closing of a system main con­trol valve to stop water flow, the Clap­per Assembly will latch open asshown
in Figure 5D. Latching open of the
DPV-1 will permit complete draining of
the system (including any loose scale)
through the main drai n po rt .

During the valve resetting procedure
and after the system is completely
drained, the external reset knob can
be easily depressed to externally un­latch the Clapper Assembly as shown
in Figure 5E. As such, the Clapper
Assembly is returned to its normal set
position to facilitate setting of the dry
pipe sprinkler system, without having
to remove the Handhole Cover.

ACCELERATOR

The Inlet Chamber of the Accelerator,
(Ref. Figure 6), is pressurized via its
connection to the system. The Pilot
Chamber is, in tur n, pressurized
throughits inlet port whichisformed by
the annular opening around the lower
tipofthe Anti-Flood Valve. Asthe Pilot
Chamber increases in pressure, the
Differential Chamber is pressurized
through the Restriction.

The Accelerator is in its set position
while it is being pressurized as well as
after the Inlet, Pilot Chamber and Dif­ferential Chamber pressures have
equalized. When in the Set position,
theOutlet Chamber is sealed offbythe
ExhaustValvewhichis held againstits
seat by a combination of the Spring
pushing up against the Lever and the
net downward force exerted by the
pressure in the Pilot Chamber.

Both small and slow changes in sys­tem pressure are accommodated b y
flow through the Restriction. When,
however, there is a rapid and steady
drop in system (i.e., Inlet and Pilot
Chamber) pressure, the pressure in
the Differential Chamber reduces at a
substantially lower rate. This condition
creates a net downward force on the
Plunger which rotates the Lever. As
theLeveris rotated (Ref. Figure7),the
Relief Valve is raised out of the Relief
Port and the Anti-Flood Valve is de­pressed downward into the Pilot
Chamber Inlet Port, venting the Pilot
Chamber.

The system pr essure in the Inlet
Chamber then forces (raises) the Ex­haust Valve off its seat. Thiscontinues
the rotation of the Lever into the
tripped (latched) position (Ref. Figure

7). As the Exhaust Valve is raised off
its seat, system pressure is transmit-

ted to the intermediate chamber of the
dry pipe valve which neutralizes the
differential pressure holding the valve
closed.

Water and any water borne debris
such as silt is prevented from entering
the Pilot Chamber by virtue of the Anti­Flood Valve having sealed off its inlet
port.

After the accelerator/dry pipe valve
has tripped and the sprinkler system
has been drained, the piping from the
systemto theAccelerator must also be
drained and the Accelerator reset/in­spected according to the instructions
given in the Valve Setting Procedure
section.

The rate-of-flow through the Restric­tion has been set such that the M odel
ACC-1 Accelerator provides the maxi­mum practical sensitivity to a loss in
system pressure due to a sprinkler op­eration while sti ll being capable of
automatically compensating for nor­mal variations in system pressure
such as are caused by environmental
temperaturechanges. A test for verify­ing that the rate-of-flow through the
Restriction is within the range for opti­mumA ccelerator performanceisgiven
in the Valve Setting Procedure sec­tion.