Tyco AV-1-300 Specification

Worldwide

Contacts

www.tyco-fire.com

Model AV-1-300 Alarm Check Valve, 300 psi (20,7 bar)
2-1/2, 4, 6 & 8 Inch (DN65, DN100, DN150 & DN200)
Vertical or Horizontal* Installation

General
Description

The TYCO Model AV-1-300 Alarm
Check Valves are divided seat ring,
rubber-faced clapper, waterow alarm
check valves that are intended for
use in wet pipe (automatic sprinkler)
re protection systems. They may be
installed vertically or horizontally*,
and they are designed to automati­cally actuate electric and/or hydraulic
alarms when there is a steady ow of
water into the system that is equivalent
to the discharge rate of one or more
sprinklers.

A separately ordered Model RC-1
Retard Chamber (Ref. Technical Data
Sheet TFP920) is required for installa­tions subject to variable pressures. It is
used to help prevent false alarms asso­ciated with pressure variations in public
water supplies.

The AV-1-300 Alarm Check Valve Trim
includes pressure gauges to monitor
system pressure conditions, a bypass
check valve, a main drain valve, and
an alarm test valve. The bypass check
valve reduces the possibility of false
alarms by permitting slow as well as
small transient increases in water sup­ply pressure to be passed through to
the system without opening the water­way cla p p e r.

NOTICE

The TYCO Model AV-1-300 Alarm
Check Valves described herein must
be installed and maintained in com­pliance with this document, as well as
with the applicable standards of the
National Fire Protection Association
(NFPA), in addition to the standards of
any authorities having jurisdiction. Fail­ure to do so may impair the integrity of
these devices.

The owner is responsible for main­taining their fire protection system
and devices in proper operating
condition. Contact the installing con­tractor or product manufacturer with
any questions.

Technical
Data

Approvals

UL and C-UL Listed
FM Approved

Working Water Pressure Range

20 to 300 psi (1,4 to 20,7 bar)

Friction Loss

Refer to Graph A.

End Connections

Groove x Groove
Flange x Groove
Flange x Flange
Refer to Table A for size applicability

Weights

Refer to Table A.

Physical Characteristics

The body is ductile iron, the hand-hole
cover is ductile iron, and the seat ring
is bronze. The clapper for the 2-1/2
inch (DN65) valve size is stainless steel.
The clapper for the larger valve sizes
is ductile iron. All valve sizes utilize an
EPDM clapper facing.

Flanged connections are available
drilled per ANSI, ISO, AS, and JIS
specications as detailed in Table B.

Threaded port connections for the
AV-1-300 Valves are available NPT
threaded or threaded per ISO 7-1 as
detailed in the Ordering Procedure sec­tion. Valves with NPT threaded ports
will readily accept the trim arrange­ments detailed in Figures 4 through 6.

For Fire Pr otecti on pres sure ra ting, li sting

and approval information, contact

your Tyco Representative.

* 4, 6, and 8 inch (DN100, DN150, and DN200) valve sizes

Page 1 of 20 SEPTEMBER 2014 TFP910

TFP910

8

VALVES

Page 2 of 20

VALVE PARTS

NO.

DESCRIPTION REF.

1

Valve Body NR

2

Handhole Cover

3

Handhole Cover

. . . . . . . . . .

Gasket

4

Seat Ring NR
Clapper See (b)

5
6
7
8

9

10

11

11

5

. . . . . . . . . .

Clapper Washer
Lock Nut,
2-1/2 Inch Valve See (b)
Self-Locking Hex
Cap Screw, 4, 6, & 8
Inch Valves See (b)

Clapper Hinge
Pin Bushing,
2-1/2 Inch Valve NR
4, 6, & 8 Inch
Valves

. . . . . . . . . . .

QTY.

. . . . . . .

. . .

. . . . . . . .

. . . .

. . .

. . .

. . . . . . .

. .

. . .

. . . .

11

5

1
1

1
1
1
1
1

1

1
1

2

4
1

NR

See (a)

See (a) or (b)Clapper Facing
See (b)

See (b)Clapper Hinge Pin

NR
See (b)Clapper Spring

VALVE PARTS

NO.

DESCRIPTION REF.

Handhole Cover

12

Hex Bolt,
2-1/2 Inch Valve,
1/2-13 UNC-2A
x 1-1/4" Long CH
4 Inch Valve,
1/2-13 UNC-2A
x 1-3/4" Long CH
6 Inch Valve,
1/2-13 UNC-2A
x 1-3/4" Long CH
8 Inch Valve,
3/4-10 UNC-2A
x 2" Long CH

13

Clapper Hinge Pin
Square Head Pipe
Plug, 3/8" NPT,
4, 6, & 8 Inch
Valves only CH

1

. . . . .

. . . . .

. . . . .

. . . . . . . . .

. . . . . . .

QTY.

4

4

6

6

1

REPLACEMENT PARTS

NO.

DESCRIPTION P/N

(a)

Repair Parts Kit,
Includes 3 & 6
2-1/2 Inch Valve
4 Inch Valve
6 Inch Valve
8 Inch Valve

(b)

Clapper Assembly,
Includes 5-9, 11
2-1/2 Inch Valve
Includes 5-11
4 Inch Valve
6 Inch Valve
8 Inch Valve

NOTES:

1.

2.

3.

. . . . . . . . .

. . . . . . . . .

. . . . . . . . .

. . . . . . . . .

. . . . . . . . .

. . . . . . . . .

F x F valve shown for reference;
components for G x G and F x G
valves are shared.

NR: Not Replaceable
CH: Common Hardware

. . . . . .

. . . . . .

92-200-1-216
92-200-1-416
92-200-1-620
92-200-1-816

92-200-1-218

92-200-1-423
92-200-1-623
92-200-1-823

10

9

10

4

3

13

2

12

CLAPPER
ASSEMBLY
2-1/2 INCH

VALVE

6

7

10

6

7

8

CLAPPER

ASSEMBLY

4, 6, & 8 INCH

FIGURE 1

2-1/2, 4, 6 & 8 INCH (DN65, DN100, DN150 & DN200)

MODEL AV-1-300 ALARM CHECK VALVE ASSEMBLY

Nominal

Valve Size,

Inches

(DN)

2-1/ 2

(65)

4

(100)

6

(150 )

8

(200)

Groove x Groove,

Lbs.

(kg)

22

(10,0)

38

(17, 2 )

58

(26,3)

102

(46,3)

TABLE A

Flange x Groove,

Lbs.

(kg)

28

(12,7 )

47

(21, 3)

70

(31, 8)

120

(54,4)

Flange x Flange,

Lbs.

(kg)

N/A

57

(25,9)

84

(38,1)

149

(67, 6 )

AVAILABLE VALVE END CONNECTIONS AND VALVE WEIGHTS

FLOW RATE IN LITRES PER MINUTE (LPM)

FLOW RATE IN GALLONS PER MINUTE (GPM)

NOMINAL PRESSURE DROP

4.0

(1 PSI = 0,06895 BAR)

Bolt Holes

600400 1000

(1 GPM = 3,785 LPM)

2000

TFP910

Page 3 of 20

1000050003000 7000 15000

Nominal

Valve

Size

2-1/2 Inch

(DN65)

4 Inch

(DN100)

6 Inch

(DN150)

8 Inch

(DN200)

3.0
0,20

2.0

0,10

2-1/2 INCH (DN65)

1.0

0.9

IN POUNDS PER SQUARE INCH (PSI)

0.8

0.7

200100

300

4 INCH (DN100)

500400

6 INCH (DN150)

8 INCH (DN200)

3000700 1000 2000 4000

0,09
0,08

0,07

0,06

0,05

GRAPH A

2-1/2, 4, 6 & 8 INCH (DN65, DN100, DN150 & DN200) MODEL AV-1-300 ALARM CHECK VALVE

NOMINAL PRESSURE LOSS VERSUS FLOW

Flange Drilling Specication

Nominal Dimensions in Inches and (mm)

ANSI B16.1

(Class 125)

1

ISO 2084

(PN10)

2 3

ISO 2084

(PN16)

JIS B 2210

(10K)

Dim.ADim.BQty. Dim.ADim.BQty. Dim.ADim.BQty. Dim.ADim.BQty. Dim.

5.50

(139,7)

7.50

(190,5)

9.50

(241,3)

11.75

(298,5)

0.75

(19,0)

0.75

(19,0)

0.88

(22,2)

0.88

(22,2)

4

USE

8

ISO 2084

(PN16)

8

11.61

8 8

(295,0)

0.87

(22,0)

Dim. A

Bolt Circle

Diameter

12

5.51

4

(140,0)

6.89

8

(175,0)

9.45

8

(240,0)

11.42

(290,0)

0.75

(19,0)

0.75

(19,0)

0.91

(23,0)

0.91

(23,0)

4

8

8

12

5.71

(145,0)

7.09

(180,0)

9.45

(240,0)

11.61

(295,0)

1

Same drilling as for B16.5 (Class 150) and B16.42 (Class 250).

2

Same drilling as for BS 4504 Section 3.2 (PN10) and DIN 2532 (PN10).

3

Same drilling as for BS 4504 Section 3.2 (PN16) and DIN 2532 (PN16).

0.71

(18,0)

0.71

(18,0)

0.87

(22,0)

0.87

(22,0)

Dim. B
Bolt Hole
Diameter

Qty. N

Number of

AS 2129
(Table E)

A

5.00

(127,0)

7.00

(178,0)

9.25

(235,0)

11.50

(292,0)

NOMINAL PRESSURE DROP IN BAR

Dim.BQty.

0.71

(18,0)

0.71

(18,0)

0.87

(22,0)

0.87

(22,0)

4

8

8

8

FLANGE DRILLING SPECIFICATIONS

TABLE B

TFP910

WATERFLOW

RESTRICTION

ALARM PORT

PRESSURE

PRESSURE

SCREEN

DRAIN RESTRICTION
WITH 0.125" (3,2 mm)
ORIFICE

INLET RESTRICTION
WITH 0.219" (5,6 mm)
ORIFICE

Page 4 of 20

Operation

When the re protection system is ini­tially pressurized, water ows into the
system until the water supply and sys­tem pressure become equalized, and
the torsion Spring closes the Water­way Clapper in the Alarm Check Valve.
Once the pressures stabilize, the Alarm
Check Valve is in service and the cen­trally located groove in the Seat Ring is
sealed. Consequently, with the Alarm
Check Valve set for service, there is
no ow through the alarm port to the
alarm devices (i.e., water motor alarm
and/or pressure alarm switch).

When there is a steady ow of water
into the sprinkler system due to a sprin­kler operation, the Waterway Clapper
opens as shown in Figure 2. Water is
then permitted to ow into the centrally
located groove in the Seat Ring and
out through the alarm port towards the
Restriction Assembly (Figure 3). When
the ow through the Inlet Restriction of
the Restriction Assembly exceeds the
ow through the Outlet Restriction, the
Retard Chamber (where provided for
systems with variable pressure), begins
to ll.

Subsequently, the Water Motor Alarm
and/or the pressure alarm switch will
be actuated. The alarms will continue
to be actuated as long as the Water­way Clapper remains open. Water in
the alarm lines will automatically drain
out through the 1/8 inch (3,2 mm) Drain
Orice in the Restriction Assembly
(Figure 3) when the Waterway Clap­per closes (due to a stop in the ow of
water into the sprinkler system).

For variable pressure systems, slow
as well as small transient increases in
water supply pressure may continue to
build up in the system (via the Bypass
Check Valve) without opening the
Waterway Clapper.

A transient surge in supply pres­sure that is sufcient only to open the
Waterway Clapper momentarily will not
cause a false alarm, and a portion of
the increase in pressure will be trapped
within the system, thus reducing the
possibility of another opening. Any
water in the alarm line is automatically
drained, further reducing the possibil­ity of a false alarm due to a successive
transient surge in supply pressure.

Design
Criteria

In planning installation of the TYCO
Model AV-1-300 Alarm Check Valves,
consideration must be given to the dis­posal of the large quantities of water
that may be associated with draining
the system or performing a ow test.

PRESSURE

RETARD

CHAMBER

ASSEMBLY

1/8"
(3,2 mm)
ORIFICE
OUTLET

WHEN FLOW THROUGH

RESTRICTION ASSEMBLY

INLET EXCEEDS OUTLET,

RETARD CHAMBER

BEGINS TO FILL

ALARM SWITCH

WATERFLOW

TO WATER

MOTOR ALARM

7/32"
(5,6 mm)
ORIFICE

INLET

MAIN
DRAIN
VALVE

ONCE RETARD
CHAMBER OVERFLOWS,
WATERFLOW PRESSURE

ALARM SWITCH AND

WATER MOTOR

ALARM ACTUATE

FIGURE 2

2-1/2, 4, 6 & 8 INCH (DN65, DN100, DN150 & DN200)

MODEL AV-1-300 ALARM CHECK VALVE

OPERATION

FIGURE 3

RESTRICTION ASSEMBLY

(Provided with Alarm Check Valve Trim)

Valves installed in the vertical position
must have the ow going up. Valves
installed in the horizontal position must
be positioned so that the drain connec­tion points down.

The sprinkler system designer must
be aware that the conguration of
the piping network and its tendency
to trap pockets of air (such as in the
case of a peaked-roof gridded sys­tem) can affect the performance of the
alarm system. Although a slight amount
of trapped air is desirable to prevent
signicant pressure increases due to
thermally induced expansion of the
water, a large quantity of trapped air in
a system may result in the possibility of
an intermittent alarm.

UPON SPRINKLER
FLOW, WATERWAY

CLAPPER OPENS

WATERFLOW

TO SYSTEM

SYSTEM

GAUGE

SUPPLY

GAUGE

ALARM
CHECK

WATERFLOW

THROUGH SEAT

RING GROOVE AND

VALVE

The possibility of an intermittent alarm
condition is a consequence of the fact
that the ow out of the system through
the test valve or a single sprinkler is
very small relative to the ow that can
be passed through the valve. This dif­ference increases with valve size. If the
system were free of trapped air, ow in
would equal ow out and the Waterway
Clapper would always stabilize at some
open position (as needed to accommo­date the required ow). With trapped
air in the system, however, the Water­way Clapper rst opens wider since the
system initially demands greater ow
until the air pockets are compressed
(back to nearly the supply pressure),
and then it will tend to return closer

TFP910

Page 5 of 20

to the Seat Ring. If the volume of the
air pockets is excessive, ow into the
system can be momentarily reduced
to nearly zero (once the air pockets
are compressed) and the Waterway
Clapper may close, causing ow to the
alarms to be shutoff.

After the Waterway Clapper has
closed, sufcient water must ow out
of the system before the Waterway
Clapper will again open. A repetition
of the above described condition is
termed an intermittent alarm.

Using a vent (which can also serve
as an end-of-line Inspector’s Test
Connection) piped from the top of a
cross main or end of a branch line at
the point most remote from the alarm
valve, and lling the system slowly in
accordance with the steps described in
the Setting Procedure section, can pre­vent an excessive amount of air from
being trapped.

Installation

NOTICE

Proper operation of the TYCO Model
AV-1-300 Alarm Check Valves depends
upon the trim described in this data
sheet installed in accordance with the
following instructions. Failure to fol­low the appropriate trim installation
instructions may prevent the device
from functioning properly as well as
void listings/approvals and the manu­facturer’s warranties.

The Alarm Check Valves must be
installed in readily visible and acces­sible locations.

It is recommended that provision be
made for viewing the alarm line drain
water by locating the main drain outlet
in a readily visible area.

Wet pipe fire protection systems must
be maintained at a minimum tempera­ture of 40°F (4°C).

Step 1. Trim the Alarm Check Valve in
accordance with Figure 4, 5, or 6, as
applicable. Apply pipe-thread sealant
sparingly to male threads only.

Step 2. The Alarm Vent Trim illustrated
in Figure 8 must be installed if a water
motor alarm is not to be used.

Step 3. Plug unused alarm
connections.

Step 4. Suitable provision must be
made for disposal of alarm line and
system drainage water. Drainage
water must be directed so that it will
not cause damage or result in danger­ous conditions.

Step 5. The alarm line drain must be
arranged so that there will be no dan­ger of freezing.

Step 6. The check valve in the exter­nally mounted bypass around the
Waterway Clapper must be installed
with its arrow pointed up, and the drain
check valve must be installed with its
arrow pointing towards the drain.

Step 7. It is recommended that a vent
connection (which may also be used
as an end-of-line Inspector’s Test
Connection), be piped from a cross
main or branch line at the point most
remote from the alarm valve. The vent
line should be connected to the top of
a cross main or to the end of a branch
line and be located at the highest level
of a multi-level installation.

The vent connection can be used to
bleed-off excessive air from the sys­tem, and therefore, minimize the
possibility of a false alarm due to a
transient surge in supply pressure. The
contraction/expansion associated with
an excessive amount of trapped air
could also cause the Waterway Clap­per to cycle open and shut during an
inspector’s test or during a discharge
by a single sprinkler.

Setting
Procedure

Steps 1 through 11 are to be performed
when initially setting the Model AV-1­300 Alarm Check Valve or after system
operation due to a re.

NOTICE

Filling the system with water will result
in operation of the associated alarms.
Consequently, notification must first be
given to the owner and fire department,
central station, or other signal station to
which the alarms are connected.

Notify the proper authorities and all
personnel who may be affected that
an alarm test is to be performed.

After placing a fire protection system
in service, notify the proper authorities
and advise those responsible for moni­toring proprietary and/or central station
alarms.

Step 1. Open the 1/4 inch Gauge Test
Valves for the Supply and System Pres­sure Gauges.

Step 2. Check to see that the Hand­hole Cover bolts are tight. If not,
cross-tighten them.

Step 3. Close the Alarm Test Valve.
Step 4. Open the remote cross main or

branch line vent connection. (Refer to
Step 7 in the Installation section.)

Step 5. Slowly open the main control
valve until the sound of owing water
just begins and then open the valve
one more turn.

Step 6. Close the remote branchline
vent connection after the discharge of
aerated water ceases, and the outlet
has owed full for at least 15 seconds.

Step 7. Fully open the main control
valve.

Step 8. Open the end-of-line Inspec­tor’s Test Connection (or Alarm Test
Valve, if acceptable to the authority
having jurisdiction) and verify that the
system alarms operate.

Step 9. Close the end-of-line Inspec­tor’s Test Connection (or Alarm Test
Valve).

Step 10. Verify that water ceases to
ow from the alarm line drain. If water
continues to ow, follow the corrective
procedure described in the Care and
Maintenance section.

The Restriction Assembly has a 1/8
inch (3,2 mm) diameter drain orice.
Sufcient time must be allowed for
drainage of the Retard Chamber and
the piping to the water motor alarm.

Step 11. After verication that the ow
of water out of the alarm line drain has
stopped, the alarm valve is set and is
ready for service.

TFP910

TO DRAIN

PRESSURE ALARM

PRESSURE

Page 6 of 20

1/2 INCH NPT

CONNECTION

FOR WATERFLOW

SWITCH

LOCATION
FOR OPTIONAL
ELECTRICALLY

SUPERVISED

N.O. ALARM

CONTROL

VALVE

MODEL RC-1

RETARD

CHAMBER

ORDERED

SEPARATELY

(FOR VARIABLE

PRESSURE

SYSTEMS)

NO.

DESCRIPTION P/N

1

300 psi/ 2000 kPa
Water Pressure Gauge

2

1/4" Gauge Test Valve

3

1/2" Swing Check Valve

4

1/2" Globe Valve 46-047-1-004

5

1/2" Y-Strainer 52-353-1-005

6

Restriction Assembly

7

1-1/4" Angle Valve

8

External By-Pass Tube

9

Alarm Test Tube

10

1/2" NPT x 1/2" Tube
Connector

11

1/2" NPT x 5/8" Tube
Connector

12

1/4" Plug

13

1/2" Union

14

1/4" 90° Elbow

15

1/2" 90° Elbow

16

1/2" Tee CH

LOCATION
FOR OPTIONAL
ELECTRICALLY

SUPERVISED

N.O. ALARM

CONTROL

VALVE

RESTRICTION

ASSEMBLY,

SEE FIGURE 3

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

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

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

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

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

QTY.

2

. .

92-343-1-005

2

. .

46-005-1-002

2

.

46-049-1-004

1

. . . . . . .

. . . . . . . . .

. . . . . . . . .

. . . . . . . . .

CONNECTION FOR

FOR WATERFLOW

PRESSURE ALARM

18

22

22

1
1

. . . .

. . . . . .

1

. .

1

. . . . . . .

1

2

2
2
1
1
1
2

3/4 INCH NPT

WATER MOTOR

ALARM

1/2 INCH NPT

CONNECTION

SWITCH

CONNECTION FOR

WATER MOTOR

5

22

6

DRAIN VALVE

(NORMALLY

CLOSED)

15 13

22 22

92-210-2-005
46-048-1-007
92-304-1-017
92-304-1-047

CH

CH
CH
CH
CH
CH

3/4 INCH NPT

ALARM

MAIN

NO.

NOTES:

1.

2.

EXTERNAL

BY-PASS

TUBE

ALARM
TEST VALVE
(NORMALLY

CLOSED)

16

3

22

DESCRIPTION

17
18

1/2" x 1/2" x 3/4" Tee CH
19
20
21

1/4" x 2-1/2" Nipple CH
22
23

1/2" x 2" Nipple CH
24
25

1/2" x 3" Nipple
26

1/2" x 4" Nipple
27
28

1-1/4" x 2-1/2" Nipple CH
29

1-1/4" x 3-1/2" Nipple CH

All Fittings and Nipples are galvanized
(Standard Order).

CH: Common Hardware.

8

11

3

11

16

10

4

23

2427

28

7

29

19

1-1/4 INCH NPT

CONNECTION

QTY.

. . . .

2

. . . .

1

. . . . . . . .

. . . . . . . .

. . . . . . . .

. . . . . . . .

. . . . . . . .

22

1
2

. . . . .

1

. . . . .

7
2

. . . . .

1
1
1
1

. . . .

1

. . . .

1

9

10

23

25

2-1/2 INCH (DN65)

GROOVE x GROOVE

26

MODEL AV-1

ALARM VALVE,

P/N

CH1/2" x 1/4" x 1/2" Tee

CH1-1/4" x 1-1/4" x 1/2" Tee
CH1/4" x 1" Nipple

CH1/2" x 1-1/2" Nipple

CH1/2" x 2-1/2" Nipple
CH
CH
CH1/2" x 6" Nipple

TEST TUBE

20

17

17

SHOWN

ALARM

14

20

2

21

1

SYSTEM

PRESSURE

GAUGE

12

2

1

12

SUPPLY

GAUGE

FIGURE 4 (1 OF 3)

VERTICAL CLOSED DRAIN TRIM — STANDARD ORDER

FOR 2-1/2 INCH (DN65) MODEL AV-1-300 ALARM CHECK VALVES (P/N 52-204-4-950)