Data Sheet 5 - Главная · PDF filee-mail: [email protected] web: Model B Wet...

Rapidrop GlobalRutland Business Park, Newark Road, Peterborough, PE1 5WA, United Kingdom

Tel: +44 (0) 1733 847 510 Fax: +44 (0) 1733 553 958e-mail: [email protected] web: www.rapidrop.com

Wet Alarm Valve

Data Sheet 5.1Issue A

LPCB / FM Approved / UL Listed / CE Marked

Pressure ratingMax. Working Pressure 12 Bar

DescriptionThe Model B, D & E Wet Alarm Valves are designed for use in Wet Pipe Sprinkler Installations in buildings not subjectto freezing temperatures. A variety of trim packages are available to suit the requirements of various approvalauthorities and a number of accessories can be supplied. Wet Alarm Valve Stations normally comprise of AlarmValve, Trim, Gauges and Main Stop Valve. These assemblies are hydrostatically tested to18 Bar prior to despatch.Accessories include Straps and Padlocks, Pressure Switches, Retard Chamber and Water Motor Alarm Gong.

Notes

B

Model number

Dimensions

Connections Pipe Size (mm) Face / Face (mm) Weight (Kg)

Flange / Flange DN 80 273.0 23.6

B

B

B

D

D

D

E

E

Flange / Flange

Flange / Flange

Flange / Flange

Flange / Grooved

Flange / Grooved

Flange / Grooved

Grooved / Grooved

Grooved / Grooved

DN 100

DN 150

DN 200

DN 100

DN 150

DN 200

DN 100

DN 150

225.4 25.0

263.5 34.1

298.4 56.8

263.5 22.7

287.3 29.5

335.0 56.8

285.7 19.1

285.7 22.7

1. Flat Faced Flange, drilled PN16. Other flange types available on special order.2. DN150mm groove available in both 165mm and 168mm.3. Supply pressure gauge not shown. This is mounted below the supply stop valve.4. The PN16 drilling on the top flange of the DN200 size valve is radially off set to the drilling in the bottom

flange. This is required to achieve bolt clearance of the body casting and must be taken into consideration in thedesign of mating flanged pipe work.

© 2009 RapidropRapidrop® is a registered trade mark.Rapidrop Global LimitedRegistered in England No. 5503278

US

LISTED



Model B Wet Alarm Valve - LPCB Approved

Data Sheet 5.2Issue B

Description

The LPCB / CE marked model B alarm valve is a differential type consisting of a rubber faced cast iron swing clapper and grooved brass seat. The seat is tinned to prevent the rubber clapper facing from sticking. This valvemust be installed vertically in the main supply to a wet pipe sprinkler system.

Operation

When a sprinkler head operates or the inspectors test valve is opened, pressure on the system side of the clapperis reduced below the pressure on the supply side. The clapper then lifts off the grooved seat and permits water flowfrom the supply to enter the system for distribution on the fire. Water now also flows through the uncovered grooveto the alarm device via the optional retard chamber where fitted. A pressure surge or water hammer in the supplyline will increase the pressure on the supply side of the clapper, causing it to lift intermittently which may result in afalse alarm. The model B alarm valve will prevent such false alarms by two features:

a) The external by pass with check valve allows a pressure surge from the supply to by pass the alarmvalve clapper. This will create an excess system pressure and thus steady the clapper.

b) Should a heavy surge unseat the clapper and allow water to flow into the alarm line, the optional model E retard chamber then comes into action. This unit has specially designed inlet and drain orifices which will allow the chamber to partially drain before filling and activating the alarm device.The retard chamber also has a strainer in the intake line to prevent foreign matter from clogging theintake orifice.

Care must be taken when installing the 20mm check valve in the by pass line to be certain that it is located withthe arrow on the body pointing towards the alarm valve.

Maintenance

The model B alarm valve is so constructed that there is nothing to adjust under normal water and operating conditionsand requires very little maintenance. The system pressure gauge should read equal too or higher than the supplypressure gauge. Alarm valves should be regularly examined to ensure reliability. Inspection of the valve should beas follows:

a) Notify the Fire Service, Insurance Provider and other centres requiring notification prior to commencinginspection.

b) Remove any padlocks and straps.c) Close supply stop valve and open main drain valve (item 34, Fig 1).d) Remove front cover (item 3, Fig 2)e) Remove the two clapper pin plugs and hinge pin (items 7 & 9 Fig 3) and clapper assembly (Fig 4)f) Clean thoroughly removing any accumulated deposits. Inspect the valve rubber/clapper facing; if

worn or damaged replace with genuine replacement parts.g) Inspect the clapper seat ring for lodgement of dirt, bruising or scoring. Clean thoroughly. (A damaged

seat ring can be carefully dressed using lapping compound. If the damage is extensive then a complete new valve should be fitted.)

h) Reinstall clapper, hinge pin and front cover.i) Remove swing clapper from 20mm check valve (item 19, Fig 1) on by pass line, and check condition

of clapper and seat. Replace complete unit if damaged.j) When every part is reinstalled close main drain valve and reset valve as per ‘Procedures after a fire’.

Continued OverleafPage 1 of 5


LPCB Approved / CE Marked

Model B Wet Alarm Valve - LPCB Trim


Weekly test for alarm valve operation.

a) Notify the Fire Service, Insurance Provider and other centres requiring notification prior to operatingthe alarm.

b) Record supply pressure (item 37, Fig 1) and system pressure (item 30, Fig 1).c) Remove any padlocks and straps. Open test valve (item 36, Fig 1)d) Check the alarm device(s) for correct operation.e) Close test valve (item 36, Fig 1).f) Check supply pressure (item 37, Fig1) is equal to the system pressure (item 30, Fig 1).g) Replace all padlocks and straps where fitted.

Procedures after a fire.

a) Remove any padlocks and straps.b) Close the supply stop valve.c) If a sprinkler pump has been used, this must now be turned off.d) Open the main drain valve (item 34, Fig 1).e) Replace the opened sprinklers with those of equivalent specification.f) Close main drain valve.g) Close the 15mm ball valve in the alarm valve trim. (item 9, Fig 1)h) Slowly open the supply stop valve.i) If a sprinkler pump has been used, now restart.j) When supply pressure gauge (item 37, Fig1) reading equals system pressure gauge (item 30,Fig 1)

reading, open supply stop valve fully and check replaced sprinklers for leaks.k) Ensure the 15mm ball valve in the alarm valve trim is open (item 9, Fig 1).l) Conduct alarm test as per weekly test.m) Replace all padlocks and straps where fitted.n) Reorder spare sprinklers to equivalent specification.

Page 2 of 5Rapidrop Global

Rutland Business Park, Newark Road, Peterborough, PE1 5WA, United KingdomTel: +44 (0) 1733 847 510 Fax: +44 (0) 1733 553 958

e-mail: [email protected] web: www.rapidrop.com



1

2

3

4

5

6

36

35

34 33 32 31

30 29 28 27 26 25 24

23

22

21

20191817

16

15

14

13

12

11

10

9

8

7

Model B, D & E




Wet Alarm Valve - LPCB Trim



LPCB Approved / CE MarkedFigure 1

Valve body 80mm, 100mm & 150mm

No Description Material/Finish Spec

1 Bailey & Mackey Ps1381 Pressure Switch (Optional)

N/A N/A

2 1/2" Elbow Galv BS143

3 1/2" Barrel Nipple Galv BS1387

4 1/2" X 5" Long Tube Sbe Galv BS1387



7 3/4" X 1/2" Reducing Socket Galv BS143


9 1/2" 1/4 Turn Ball Valve


11 1/2" Equal Tee Galv BS143


13 1/2" Equal Tee Galv BS143

14 1/2" Drip Valve Bronze

15 Wet Alarm Valve Body


17 3/4" X1/2" X 3/4" Tee Galv BS143


No Description Material/Finish Spec

19 3/4" Check Valve Screwed Bronze



22 3/4" X 3.1/2" Long Tube Sbe Galv BS1387


24 3/4" Union Galv BS143



27 3/4" X 2.1/2" Long Tube Sbe Galv BS1387



30 Pressure Gauge Incl No-Los Con-nector

N/A BSEN837

31 2" X 2.1/2" Long Tube Sbe Galv BS1387

32 2" X 1/2" X 2" Tee Galv BS143

33 2" X 2.1/2" Long Tube Sbe Galv BS1387

34 2" Angle Drain Valve Bronze


36 1/2" 1/4 Turn Ball Valve

20

12

11

16

13

15

17 21

10

19

6

1

2 853

4

7

19

19

15

8

15

15

12

12

1914

18

6




et Alar VModel B, D & E W m alve - LPCB Trim


Page 4 of 5

LPCB Approved/ CE MarkedFigure 1Valve body 200mm

Item No. Part Number Description Qty.

1 Wet valve body 200mm 1

2 Nipple 1-4 BS1387 1

3 3 valve 1/4" 3 Way Valve 1

4 Pressure gauge small 1

5 Plug 1/4" Plug 2

6 2" 2" 5" GALV 1

7 2 angle valve 1

8 Nipple 1-2 BS1387 2

9 Nipple 1-2 BS1387 1

10 Nipple 1-2 BS1387 1

11 Nipple 1-2 BS1387 1

12 Elbow 1-2in BS143 3

13 Equal Tee 1-2in BS143 1

14 Ball Valve 1

15 L1 3/4" 2-1/2" Galv 4

16 Nipple 3-4 Barrel Galv 1

17 L4 3/4" 4" Galv 1

18 L2 3/4" 3" Galv 1

19 Elbow 3-4 Galv 4

20 Check valve 1

21 1




Model B, D & E Wet Alarm Valve - LPCB Trim


Page 5 of 5


Figure 2

Figures 2,3 & 4 Parts List

Amm

ItemNumber Description


1

2

3

4

5

6

7

8

Alarm Valve Body

Water Seat

Cover

Cover Gasket

Cover Bolts

Clapper

Clapper Pin

Bush

9

10

11

12

13

14

15

Plug

Clapper Gasket

Seal Retainer

Bolt

O Ring

Lock Washer

Nut

Figure 4Figure 3

constructed




US

LISTED

Model B, D & E Wet Alarm Valve - FM Trim


Description

The FM approved / UL listed wet alarm valve is a differential type consisting of a rubber faced cast iron swingclapper and grooved brass seat. The seat is tinned to prevent the rubber clapper facing from sticking. This valvemust be installed vertically in the main supply to a wet pipe sprinkler system.

Operation

When a sprinkler head operates, pressure on the system side of the clapper is reduced below the pressure on thesupply side. The clapper then lifts off the grooved seat and permits water flow from the supply to enter the systemfor distribution on the fire. Water now also flows through the uncovered groove to the alarm device via the optionalretard chamber where fitted. A pressure surge or water hammer in the supply line will increase the pressure on thesupply side of the clapper, causing it to lift intermittently which may result in a false alarm. The wet alarm valvewill prevent such false alarms by two features:

a) The external by pass with check valve allows a pressure surge from the supply to by pass the alarmvalve clapper. This will create an excess system pressure and thus steady the clapper.

b) Should a heavy surge unseat the clapper and allow water to flow into the alarm line, the optional model E retard chamber then comes into action. This unit has specially designed inlet and drain orifices which will allow the chamber to partially drain before filling and activating the alarm device.The retard chamber also has a strainer in the intake line to prevent foreign matter from clogging theintake orifice.

Care must be taken when installing check valves in the trim to be certain that they are located with the arrow onthe body pointing in the right direction. The arrow on the body of the 20mm check valve in the by pass line mustpoint towards the alarm valve. The arrow on the body of the 15mm check valve in the drain line from the retardchamber must point towards the main drain.

Maintenance

The wet alarm valve is so that there is nothing to adjust under normal water and operating conditionsand requires very little maintenance. The system pressure gauge should read equal too or higher than the supplypressure gauge. Alarm valves should be regularly examined to ensure reliability. Inspection of the valve should beas follows:

a) Notify the Fire Service, Insurance Provider and other centres requiring notification prior to commencinginspection.

b) Remove any padlocks and straps.c) Close supply stop valve and open main drain valve.d) Remove front cover (item 3, Fig 2).e) Remove the two clapper pin plugs and hinge pin (item 7 & 9, Fig 3) and clapper assembly (Fig 4).f) Clean thoroughly removing any accumulated deposits. Inspect the valve rubber/clapper facing; if

worn or damaged replace with genuine replacement parts.g) Inspect the clapper seat ring for lodgement of dirt, bruising or scoring. Clean thoroughly. (A damaged

seat ring can be carefully dressed using lapping compound. If the damage is extensive then a complete new valve should be fitted.)

h) Reinstall clapper, hinge pin and front cover.i) Remove swing clapper from 20mm check valve on by pass line, and check condition of clapper and

seat. Replace complete unit if damaged.j) When every part is reinstalled close main drain valve and reset valve as per ‘Procedures after a fire’.


FM Approved / UL Listed

Model B, D & E



© 2009 RapidropRapidrop® is a registered trade mark.Rapidrop LimitedRegistered in England No. 5503278

US

LISTED

Wet Alarm Valve - FM Trim


Weekly test for alarm valve operation.

a) Notify the Fire Service, Insurance Provider and other centres requiring notification prior to operatingthe alarm.

b) Record supply pressure and system pressure.c) Remove any padlocks and straps. Open test valve. This takes water from below the clapper and

permits testing without raising the clapper from its seat.d) Check alarm device(s) for correct operation.e) Close test valve.f) Check supply pressure is equal to the system pressure.g) Replace all padlocks and straps where fitted.

Procedures after a fire.

a) Remove any padlocks and straps.b) Close the supply stop valve.c) If a sprinkler pump has been used, this must now be turned off.d) Open the main drain valve.e) Replace the opened sprinklers with those of equivalent specification.f) Close main drain valve.g) Close the two 15mm ball valves in the alarm valve trim.h) Slowly open the supply stop valve.i) If a sprinkler pump has been used, now restart.j) When supply pressure gauge reading equals system pressure gauge reading, open supply stop

valve fully.k) Ensure only the 15mm ball valve in the alarm valve trim is open.l) Conduct alarm test as per weekly test.m) Replace all padlocks and straps where fitted.n) Reorder spare sprinklers to equivalent specification.

Page 2 of 5


Model B, D & E




US

LISTED





Figure 1

1

17

12

3

24

8 9

10

23

11

14

9

7

23

3

10

11

10

21

5

6

223

221

1920

1718

2

214

224

18

2019

25

14

7

13

16

15

25

Figure 1

Item No Description Material/finish Spec Qty

1Valve Body, Avb150 (150mm),Avb100 (100mm), Abv (80mm) 1

2 3/4" 3" Barrel Nipple Galv BS1387 3

3 Elbow 1/2" Galv BS143 2

4 3/4" Closed Taper Galv BS1387 2

5 1/2" 3-1/2" Barrel Nipple Galv BS1387 1

6 M/f Elbow 1/2" - 3/4" Galv BS143 1

7 1/2" Closed Taper Nipple Galv BS1387 2


9 Equal Tee 1/2" Galv BS143 2


11 1/2" 1/4 Turn Ball Valve Bronze 2

12 2" 6" Barrel Nipple Galv BS1387 1




16 1/2" Drip Union Bronze 1

17 1/4" 3 Way Valve Bronze 218 1/4" Plug Galv 2

19 1/2" - 1/4" Bushing Galv 2

20 1/4" Close Taper Nipple Galv BS1387 2

21 Tee 1/2" - 3/4" - 3/4" Galv 3

22 3/4" Check Valve Bronze 123 1/2" Union Fitting Galv 3

24 2" Angle Drain Valve Bronze 1

25 1/4" Pressure Gauge 2

Valve body 80mm, 100mm & 150mm

Model B, D & E

1

2

2

3

3

4

4

5

5

6

6

6

10

22

11

7

23

711921

8

20

8

23

19

141613

17

13

16

12

16

15 18

13

13

21

24




US

LISTED



Page 4 of 5

FM Approved / UL ListedFigure 1Valve body 200mm

Item No. Description Material/finish Spec Qty.

1 Valve Body AVB200 (2OOmm) 1


3 1/4" 3 Way Valve Bronze 2

4 1/4" Pressure Gauge 2

5 1/4" Plug Galv BS143 26 1/2" 2" Barrel Nipple Galv BS1387 3

7 1/2" 5-1/2"barrel Nipple Galv BS1387 2

8 1/2" Closed Taper Galv BS1387 29 1/2" 3" Barrel Nipple Galv BS1387 1

10 2" 6" Barrel Nipple Galv BS1387 1

11 1/2" Elbow Galv BS143 2




15 3/4" Closed Taper Nipple Galv BS1387 1

16 3/4"elbow Galv BS143 3

17 3/4" Union Fitting Galv BS143 1

18 3/4" Check Valve Bronze 119 Tee 1/2" - 3/4" - 3/4" Galv BS143 120 1/2" Union Fitting Galv BS143 121 Equal Tee 1/2" Galv BS143 222 2" Angle Drain Valve Bronze 1

23 1-2" 1-4 Turn Ball Valve Bronze 2

24 1/2" Drip Union Bronze 1

Model B, D & E




US

LISTED



Page 5 of 5


Figure 2

Figures 2,3 & 4 Parts List

Amm



1

2

3

4

5

6

7

8

Alarm Valve Body

Water Seat

Cover

Cover Gasket

Cover Bolts

Clapper

Clapper Pin

Bush

9

10

11

12

13

14

15

Plug

Clapper Gasket

Seal Retainer

Bolt

O Ring

Lock Washer

Nut

Figure 4Figure 3

Model E Water Motor Alarm Gong



US

LISTED

Description

The Model E Water Motor Alarm Gong is a self contained, water operated alarm which sounds continuously wheneverthe sprinkler system is activated. Designed with functional simplicity and sound engineering practice, the Model EWater Motor Alarm Gong is always ready to function in the event of a fire.


Item Description

1 Pelton wheel housing

2 Pelton wheel

3 Bearing

4 Cover, pelton wheel housing

5 Clean out plug

6 Cover screw

7 Cover gasket

8 Drive shaft (Length 455mm)

9 Drive shaft housing

10 Spacer

Item Description

11 Gong

12 Brass bushing

13 Bracket

14 Bolt

15 Striker shaft

16 Striker bracket screw

17 Striker bracket

18 Striker

19 Striker washer

20 Shoulder rivet

Parts List







Installation

a) Cut a hole in the wall to accommodate the 20mm pipe.b) Cut drive shaft housing (item 9) to wall thickness plus 40mm.c) Attach drive shaft housing to bracket (item 13) without removing bolt (item 14), and position this assembly

on the outside wall with the drive shaft housing through the wall.d) Remove the six cover screws (item 6), cover (item 4), cover gasket (item 7), and pelton wheel (item 2) from

theipelton wheel housing (item 1).e) Insert drive shaft (item 8) through the drive shaft housing into engagement with the striker shaft (item 15).f) Cut drive shaft even with the top flange of bearing (item 3) in the pelton wheel housing.g) Insert pelton wheel and rotate by hand to assure proper alignment.h) Attach cover and cover gasket to pelton wheel housing with the six cover screws.

Operation

When, in the case of a fire emergency, the sprinkler system is activated, flowing water enters the Water Motor AlarmGong inlet and strikes the pelton wheel. Rotating in a turbine fashion, the pelton wheel transmits its torque to thestriker assembly which sounds the alarm. The water, after it impinges on the pelton wheel, flows through the drainoutlet in the pelton wheel housing.

Maintenance

a) The 20mm strainer, located in the alarm line from the alarm valve, should be periodically cleaned to ensuresufficient flow to the Water Motor Alarm Gong.

b) The clean out plug (item 5) should be periodically removed to avoid any accumulation of debris and scale that may have passed through the strainer.

c) The inside of the gong (item 11) should be checked periodically for the accumulation of foreign material.

Model E Water Motor Alarm Gong


US

LISTED


Page 2 of 2




Compressor

PressureMax Working Pressure: 8 BarAir Displacement: 0.26 m3/min (9.2 cfm)

Specification�� V��Variable pressur�� !��"�fferential.��#$!��"��!��reduce start load on motor��%&��!'��*��!��++��&��!'�!��*��!��!!��!�� ++��,��$��!��"��$��-ressure r�!��,��,��'��!��,��'��4�;��%'��+��ressure gauge 0-6 Bar.��=�+�$��$��4�++��>�"��?��4�++��@��?��++��=��

InstallationC��+�r��&!"��+�&$��"��$��!��!��$��$"�"�'��$��r�$+�$��$��$��,��+�$��$"�reliabilit'.F��&!"�$��+�&$��"��&�"��C��,��+��r��"��!!�"� ��,�&��+�&$��$@��$�H��J$��!��&��!�� !!�K�,��+��J$��!��,!��r.��#��!��+��4��#��!��++��Connection to sprinkler �'��+ pipe ��* ��&!" include a second isolation and second ��* ��!�� to accommodatefutur��'��+�+��$��$�$��C��$$��$��&!"��!��++�"��r�!��+��+�$��$"��$�� $��'��+�� *��$"��+�ressor.C��!��+��requir��Q��+��,&��"�� &��!'��$"��!��r.C��!��&+��&!"��,�!!�"��$@��&$��C��!�!��!��&!"��*�"��"��!!'��$"��"�&�as required.

DescriptionReciprocating air pump compr�� !��&+��+�&$��"��$��$"�"��$��'��$��!��$"&��$�+��&��!�,��"�'��$*!��'��+��&��'��&��!'.C��+�ressor and trim ar��+�&$��"��$��@�!��$��"�,��+��rotect fr�+��"�$��!�+��$��!�"�+�@��C��motor is contr�!!�"��'��ressur�� ,��'��;�r��T�;��"�fferential.

Issue B


Model EA Water Motor Alarm GongUL Listed/ FM Approved




TECHNICAL DATA :

MODEL GA

MOUNTING TYPE Type - A & Type - B

MAXIMUM WORKING 12.3 Kg./Sq.cm. ( 175 PSI )PRESSURE

CONNECTION Inlet : 3/4" BSPT ( 3/4" NPT )Drain : 1" BSPT ( 1" NPT )

FACTORY TEST At low �ow - 0.35 Kg./sq.cm.( 5 PSI )&At high �ow - 7 Kg./sq.cm.( 100 PSI )

GONG DIAMETER 205mm ( 8" )

GONG DEPTH 50mm ( 2" )

FINISH Epoxy red powder coated

WEIGHT 3.0 Kg.

ORDERING Model & Mounting TypeINFORM ATION

SPRINKLER ALARM MODEL - GAHD Sprinkler Alarm is a hydraulically driven mechanicalbell. It does sound a continuous alarm when the sprinklersystem operates. The impeller and drive shaft are energye�cient, made from light weight nonmetallic materialand does not require any external lubrication. The gong,protection cover and motor housing are made ofcorrosion resistant aluminium alloy.

OPER ATIONWhen the sprinkler system is activated by the fusing ofone or more automatic sprinklers at �re condition thewater �ows through the Alarm / Deluge Valve and enterthe sprinkler alarm through the nozzle, creating a highvelocity jet which strikes the impeller causing the driveshaft and the striker arm assembly to rotate. The alarmarm assembly rotate and strikes to impact against thealuminium gong, producing a continuous alarm. The wastewater then drains out through a 25NB drain outlet. Ittakes minimum 0.35 Kg./Sq.Cm. ( 5 PSI ) pressure atthe nozzle to cause an alarm.

DESIGN REQUIREMENTStrainer is required in the Sprinkler Alarm line to protectthe 3.2 mm nozzle in the water motor housing fromclogging.

The alarm line pipe must be 20NB (3/4") size with 22.8

mtrs. (75 feet) maximum total length of pipe withminimum number of �ttings. If the length of the pipeexceeds 22.8 mtrs. (75 feet), then higher size pipe mustbe used to reduce hydraulic friction loss. The SprinklerAlarm should not be located more than 1.8 mtrs. (Sixfeet) above Alarm Valve / Deluge Valve.

MAINTENANCEQuali�ed and trained person must commission thesystem. After few initial successful tests an authorisedperson must be trained to perform inspection andtesting of the system.

Even though corrosion resistant material is used in theconstruction of the Sprinkler Alarm, it is suggested thatthe Sprinkler Alarm be examined and tested at regularintervals to ensure that the nozzle is free fromobstruction and the impeller is free to rotate. Theinspection should include the following :

1. Clean 20 NB ( 3/4 ") Strainer provided in the alarmline.

2. Open the 3/8" plug provided on the inlet of theSprinkler Alarm and clean out any accumulatedparticles.

3. Detach the Gong, clean the internal surface and re�tin proper sequence.

4. Activate the Sprinkler Alarm to verify clear andsteady sound.

Page 1 of 4Continued Overleaf

‘RD’

EA

EA






1211145431222

16

15

17

18

13

24

6

9

10

14

23

7

19

20

8

158

Ø122

Ø23 3

SPRINKLER ALARMMODEL - GA

HD FIRE PROTECT CO.THANE 400604, INDIA

INLET

OUTLET

25

A

VIEW 'A'

TO DRAIN

CLEAN OUTPLUG

21

R

LISTED3S38

ITEM CODE DESCRIPTION QTY.NO.

14 5011 STRIKERWASHER 1 ALUMINIUM ALLOY

15 5012 STRIKER 1 FIBRE

16 5013 STRIKER BUSH 1 ALUMINIUM ALLOY

17 5014 STRIKER ARM BOLT 1 ALUMINIUM ALLOY

18 5015 STRIKER ARM WASHER 1 ALUMINIUM ALLOY

19 5024 DRIVE SHAFT 1 ALUMINIUM ALLOY

20 5016 HOUSING COVER 1 ALUMINIUM ALLOY

21 5017 GASKET 1 NEOPRENE

22 9029 CH.HEAD BOLT 6 PLATED STEEL

23 5020 GONG STICKER 1 PVC

24 9025 SCREW 1 PLATED STEEL

ITEM CODE DESCRIPTION QTY. MATERIALNO.

1 5001 HOUSING 1

2 5002 1 DELRIN

3 5003 RETAINING RING 1 SS 316

4 5004 DRIVE SHAFT ADAPTOR 1 DELRIN

5 5005 BUSH 1

6 5006 PROTECTION COVER 1 ALUMINIUM ALLOY

7 5007 GONG 1 ALUMIN IUM ALLOY

8 5008 GONG POST 1 ALUMINIUM ALLOY

9 5018 NYLON WASHER 2 NYLON

10 5009 DOME NUT 1 ALUMINIUM ALLOY

11 9106 HEX. HED BOLT 1 PLATED STEEL

12 5019 WASHER 1 S.S.

13 5010 STRIKERARM 1 ALUMINIUM ALLOY

PART LIST

HD FIRE PROTECT PVT. LTD.THANE - 400604, INDIA

- All dimension in mm

Page 2 of 4

PELTON WHEEL

Sprinkler Alarm - EA Mounting Type - A

OUTLET

INLET

MATERIAL

ALUMINIUM ALLOY

ALUMINIUM ALLOY







1 5001 HOUSING 1

2 5002 GONG IMPELLER 1 DELRIN

3 5003 RETAINING RING 1 SS 316

4 5004 DRIVE SHAFTADAPTOR 1 DELRIN

5 5005 BUSH 1

6 5006 PROTECTION COVER 1 ALUMINIUM ALLOY

7 5007 GONG 1

8 5008 GONG POST 1 ALUMINIUM ALLOY

9 5018 NYLON WASHER 2 NYLON

10 5009 DOME NUT 1 ALUMINIUM ALLOY

11 9106 HEX. HED BOLT 1 PLATED STEEL

12 5019 WASHER 1 S.S.

13 5010 STRIKERARM 1 ALUMINIUM ALLOY

14 5011 STRIKERWASHER 1 ALUMINIUM ALLOY

PART LIST


15 5012 STRIKER 1 FIBER

16 5013 STRIKER BUSH 1 ALUMINIUM ALLOY

17 5014 STRIKER ARM BOLT 1 ALUMINIUM ALLOY

18 5015 STRIKER ARM WASHER 1 ALUMINIUM ALLOY

19 5027 DRIVE SHAFT 1 ALUMINIUM ALLOY

20 5016 HOUSING COVER 1 ALUMINIUM ALLOY

21 5017 GASKET 1 NEOPRENE

22 9029 CH. HEAD BOLT 6 PLATED STEEL

23 5020 GONG STICKER 1 PVC

24 5021 WALL SUPPORT WASHER 1 MS

25 5022 PLUG 1

26 5023 COUPLING 1 STEEL

27 5025 SUPPORT PIPE 1 GI PIPE (BY INSTALLER)

112522 2 1 3 4 145 12

20

21

19 17

16

15

18

13

9

14

10

8

23

7

6

27 2624

Ø122

Ø23 3

88WALL THICKNESS71

40

- All dimension in mm

Page 3 of 4Continued Overleaf

Sprinkler Alarm - EA Mounting Type - B

PELTON WHEELALUMINIUM ALLOY

ALUMINIUM ALLOY

ALUMINIUM ALLOY

ALUMINIUM ALLOY






INSTALLATION OF SPRINKLER ALARMMODEL GA MOUNTING TYPE - AThe Sprinkler Alarm with mounting Type-A is suppliedpre-assembled. Connect the Alarm port of the Alarmvalve or Deluge valve to the inlet of the sprinkler alarmassembly with 20NB (3/4") pipe with proper support. A20NB (3/4") strainer is to be provided as close aspossible to the Sprinkler Alarm assembly. Connect the25NB (1") drain pipe to the housing, taking due carethat the drain discharge is running to a safe locationand keep the drain free from obstruction. A blockeddrain discharge may create back pressure and preventthe Sprinkler Alarm from operating properly.

The 20NB (3/4") inlet and 25NB (1") drain pipe should beproperly supported with the help of the bracket so thatin turn proper support is available for the SprinklerAlarm. The inlet and the drain pipe is to be preferablyconnected with an union for easy removal and re-�xingof the Sprinkler Alarm during maintenance.

The Sprinkler Alarm must be installed in accordancewith the requirement of NFPA, TAC or to the requirementof the local authority having jurisdiction.

INSTALLATION OF SPRINKLER ALARMMODEL GA MOUNTING TYPE - B1. Locate and cut a hole through the building wall to

accommodate a 20NB (3/4") pipe with coupling(galvanised pipe to be supplied by the installer). Therequired length of support pipe is equal to thethickness of the wall minus 30 millimetres. The pipeis to be threaded with the standard 20NB (3/4") pipethreading on the both ends to a length of 20millimetres. Cut the drive shaft length, equal to thewall thickness plus 43 millimetres.

2. Insert one end of the drive shaft (19) into the squarehole provided in the impeller (2) of the Sprinkler Alarmgong assembly.

One end of 20NB (3/4") support pipe is to be screwedto the coupling (26) provided with the assembly andthe other end of the pipe is to be screwed to thehousing (1) of the Sprinkler Alarm motor assemblyas shown in the �gure. Position this assemblyagainst the building wall through a washer (24) withthe support pipe extending through the wall.

3. Connect the alarm port of the Alarm Valve or DelugeValve to the inlet of the Sprinkler Alarm assemblywith 20NB (3/4") pipe, with proper support. A 20NB(3/4") strainer is to be provided as close as possibleto the Sprinkler Alarm assembly.

4. Move to the other side of the wall, place protectioncover (6) on to the pipe coupling (screwed to thepipe) and hold against the wall. Insert the bush (5,assembly with drive shaft adaptor) into the holeprovided in the protection cover and thereby handtighten the coupling extending through the wall.Make sure that the drive shaft is properly �tted inthe square hole of impeller and drive shaft adaptor.This can be ensured by rotating the drive shaftadaptor. The drive shaft adaptor should rotatewithout any binding while tightening the bush. If anybinding is noticed then unscrew the bush and re�t.After ensuring that the drive shaft is properly placedin the square holes at both ends, wrench tight thebush.

5. Place the gong over the gong post with washers asshown in the cross-sectional drawing and handtighten the dome nut, rotate the gong until thelettering is properly originated. Wrench tightenthe dome nut.

6. Connect the 25NB (1") open drain pipe to the motorhousing, taking due care that the drain discharge isrunning to a safe location and keep it free fromobstruction.

Page 4 of 4

EA

EA

The Sprinkler Alarm must be installed in accordancewith the requirement of NFPA or to the requirementof the local authority having jurisdiction.

NOTICE: The equipment presented in this bulletin is to be installed in accordance with the lasted publication standards of NFPA or other similar organisations also with the provision of government codes or ordinances where applicable. The information provided by us are to the best of our knowledge and belief, and are general guidelines only. Site handling and installation control is beyond our reach. Hence we give no guarantee for result and take no liability for damages, loss or penalties whatsoever, resulting from our suggestion, information, recommendation or damages due to our product. Product development is a continuous programme of Rapidrop and hence the right to modify any specification without prior notice is reserved with the company.


Retarding Chamber - Model RA




HD Retarding Chamber is used with Alarm Valve Trimwhen variable pressure is anticipated in the system. Itis a holding tank to prevent sounding of Sprinkler Alarmduring water pressure surge, but will permit the sound-ing of alarm on sustained o w. The retarding chamberis connected to alarm port of alarm valve through re-striction nozzle. The retarding chamber is part of ULListed Alarm Valve Trim. The retarding chamber is madeof stainless steel material.

TE C H NI C AL DATA :

MODEL RA

MATERIAL Stainless Steel

CONNECTION 3/4" BSPT (F)

WEIGHT 2.6 Kg.

APPROVALS UL listed and FM approved

3/4" BSPT

3/4" BSPT

168

32

0

C-6, Nandanvan ind. Estate, LBS Marg, Thane 400 604, IndiaHD FIRE PROTECT CO.

LIMITED WARRANTYProducts supplied by Rapidrop (RD) are warranted against defects in material and workmanship for a period of Two (2) years from the date of shipment. RD’s obligation under this warranty is limited to replace or repair the products or its parts, which are shown to RD’s examination to be in a defective condition attributable to RD. No warranty is given for products or components which have been subject, to misuse, improper installation, corrosion, wear and tear, improper storage, modification or repaired. If the defect attributable to RD cannot be rectified by repair or replacement, then RD may elect to refund the purchase price of the equipment in complete discharge of its obligation under this Limited Warranty.

IN NO EVENT SHALL RAPIDROP . BE LIABLE IN CONTRACT, STRICT LIABILITY OR ANY OTHER LEGAL THEORY, FOR INCIDENTAL, IN-DIRECT, SPECIAL ORCONSEQUENTIAL DAMAGES, INCLUDING DAMAGES. FOR INJURY TO PERSON OR DEATH OR DAMAGE TO PROPERTY AND OR PENALTIES RESULTING FROM ANY PRODUCTSOR COMPONENT MANUFACTURED OR ASSEMBLED BY RD. THIS IS LIMITED WARRANTY ONLY. RD DISCLAIMS WITH RESPECT TO THE PRODUCTS ALL IMPLIED WARRANTIESOF MERCHANTABILITY AND ALL IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE. THERE IS NO WARRANTY OF ANY NATURE MADE BY RD BEYOND ASSTATED ABOVE.

NOTICE :The equipment presented in this bulletin is to be installed in accordance with the latest publication standards of NFPA or other similar organisations and also with the provision of government codes or ordinances wherever applicable. The information provided by us are to the best of our knowledge and belief, and are general guidelines only. Site handling and installation control is beyond our reach. Hence we give no guarantee for result and take no liability for damages, loss or penalties whatsoever, resulting from our suggestion, information, recommendation or damages due to our product. Product development is a continuous programme of RAPIDROP and hence the right to modify any specification without prior notice is reserved with the company.

The RD Retarding Chamber is used with the Alarm Valve Trim when variable pressure is anticipated in the system. It is a holding tank to prevent the sounding of the sprinkler alarm during a waterpressure surge, but will permit the sounding of the alarm on a sustained flow. The retarding chamber is connected to the alarm port of the alarm valvethrough the restriction nozzle. The retarding chamber is part of UL Listed Alarm Valve Trim. The retarding chamber is made of stainless steel material.

Alarm Valve Model C



© 2013 RapidropRapidrop ® is a registered trade mark.Rapidrop Global LimitedRegistered in England No. 5503278


APPROVED

LISTED

UL

3S38

Technical Data

MODEL C

NOMINAL SIZE 200, 150, 100 & 80 NB

MAXIMUM SERVICE 17.5 Bar (250 PSI)*PRESSURE

THREADED OPENING BSPT

MOUNTING Vertical

FLANGE CONNECTION ANSI 150 or PN16

TRIM Galvanised fitting withBrass Valves

FACTORY HYDROSTATIC 35 Kg./ Sq.cm.(500PSI)TEST PRESSURE

FRICTIONAL LOSS 200 NB - 7.50 Mtrs.IN TERMS OF 150 NB - 7 Mtrs.EQUIVALENT LENGTH 100 NB - 6.1 Mtrs.OF PIPE ( C-120 ) 80 NB - 4.7 Mtrs.

APPROXIMATE 200 NB - 65 KgNET WEIGHT 150 NB - 42 KgWITHOUT TRIM 100 NB - 27 Kg

80 NB - 18 Kg

FINISH Red RAL 3000

APPROVAL UL Listed FM Approved

ORDERING Specify Size of valve,INFORMATION Trim details

REFERENCE NFPA 13 and NFPA 25

* For 200 NB, FM approval is rated upto 200 PSI (14 Bar)

DescriptionRapidrop Alarm Valve model C is a double seated clapper check valve with grooved seat design which ensurespositive water flow for alarm operation and is designed forinstallation in wet pipe sprinkler system. Externalbypass prevents false alarm under all supplypressure condition. In the event of variable pressurecondition, false alarm is prevented with theprovision of retard chamber, thus the design allowsfor installation under both variable and constantsupply pressure condition.

Operation of one or more automatic fire sprinklerscauses the water to flow into the sprinkler systemcausing the alarm valve to open, allowing continuousflow of water into the system and transmittal ofalarm, both electrical and mechanical.

OperationThe fire protection system initially when beingpressurized, will allow water to flow into the systemuntil the water supply and system pressure isequalized and the clapper closes the waterway. Oncethe pressure is stabilized, the fire protectionsystem is ready to be placed in service and thenthe alarm control valve must be opened. Undernormal condition, the water pressure gaugeconnected to the system side of the alarm valvewould show a higher or equal pressure reading thanthe water pressure gauge connected to the supplyside of the valve. This occurs because of the bypassline connecting downstream and upstream side ofthe alarm valve, which allows water pressure surgeto pass without lifting the valve clapper off its seat,thereby causing excessive high pressure surgeentrapped in the system side due to presence of acheck valve, which generally prevents false alarm.

Sudden high pressure surge, as might beencountered by the start-up of a large fire pumpmay lead the valve clapper to lift momentarily,allowing water to flow through grooves in the valveseat to the retard chamber. The water in the alarmline is automatically drained out, which helps toprevent false alarm due to successive transientsurge in supply pressure. Restriction assemblylocated beneath the retard chamber consists ofinlet and drain restriction orifices, which areestablished by considering the volume of the retardchamber to meet the l ist ing and approvalrequirement with regard to time-to-alarm. Theserequirements represent a balancing of the need toreduce the possible false alarm due to a transient

Page 1

Alarm Valve Model C





Page 2

surge in supply pressure and to achieve desiredminimum time- to- alarm following a sprinkleroperation.

In constant pressure installation, the retardchamber is not required and the water passingthrough the groove in the alarm valve seat flowsdirectly through restriction nozzle assembly toactivate the mechanical and electrical alarm.

Installation1. Rapidrop Sprinkler alarm valve, Model-C must be

installed vertically.

2. The alarm valve must be installed in a readilyvisible and accessible location and provision tobe made in such a way that alarm line drain isvisible and accessible.

3. Where water pressure fluctuates, the variablepressure trim with retard chamber must beused. Under non-fluctuating water pressurecondition, the constant pressure trim, whichdoes not include retard chamber, may be used.

4. The valve must be installed with trim inaccordance with the trim data. Failure to followthe appropriate trim connection guidelines mayprevent the device from functioning properlyas well as void listing, approval and themanufacturer's warranty.

5. Care must be exercised while installing thecheck valve in the trim to ascertain that theyare located with the arrow mark on the checkvalve body and pointed in proper direction.

6. The contraction and expansion associated withan excessive volume of trapped air could causethe waterway clapper to cycle open and shut.This may result in false alarm or an intermittentalarm. To avoid these, it is recommended tohave breather valve in the system pipingnetwork and a vent valve at the extreme endof the system to bleed-off the air.

7. The ball valve provided on the alarm line mustbe kept open and strapped in set position.

8. Pipe connecting the retard chamber andsprinkler alarm bel l must be supportedproperly to avoid loading on the retard chamber.

9. All the newly installed system pipes must beflushed properly before alarm valve is put intoservice.

Inspection and MaintenanceA qualified and trained person must commission thesystem. After few initial successful tests anauthorised person must be trained to performinspection and testing of the system.

It is recommended to carry out physical inspection

of the system at least twice a week. The inspectionshould verify that all the control valves are in properposition as per the requirement of the system andno damage has taken place to any component.

It is recommended that the alarm valve and itsaccessories should be examined and performed forfollowing at least quarterly or as demanded by localauthorities to ensure reliable and trouble freeoperation and service.

1. Inspection and testing is to be carried out onlyby an authorized person. DO NOT TURN OFF thewater supply valve to undertake repair work orto test the valve, without placing a roving firepatrol in the area covered by the system. Thepatrol should continue until the system is backinto service. Also do inform the local securitypersonnel and alarm control station, so that afalse alarm is not signaled.

2. Open the alarm test valve. Verify that thesprinkler alarm bell and/or the pressure alarmswitch/electric alarm properly actuate. Close thealarm test valve and verify that water hasceased to flow from the alarm line drain.

3. Clean the 20 NB (3/4") strainer provided on thesprinkler alarm bell line.

4. Clean the strainer of restriction assembly.

5. Inspect the check valve clapper located on thebypass line.

False Alarm1. Inspect the valve rubber clapper face. If worn

or damaged, replace it. Be certain that dirt,stone or any other foreign object have notaccumulated under the clapper face and lodgedin the groove or holes. Clean the clapper facethoroughly. If the seat ring surface is nicked orscoured, it might be possible to repair the sameusing lapping compound. If not, replace thecomplete valve or return i t to themanufacturer's works for repair.

2. If sprinkler alarm bell is not functioning or theimpel ler is jammed, please fol low themaintenance guideline provided in the cataloguefor sprinkler alarm bell.

3. If pressure alarm switch gives a steady signal,but sprinkler alarm generates an intermittentalarm, check sprinkler alarm bell shaft. If boththe sprinkler alarm bell and pressure alarmswitch are generating intermittent alarm thencheck for the possible air which is trapped withinthe sprinkler system. Trapped air is to be bledoff. Also the intermittent alarm may occur dueto sudden pressure drop and increase in thesystem. These problems can be corrected bymaintaining a steady supply.

Alarm Valve Model C





Page 3

Caution1) The UL Listing,FM Approval and manufacturer’s

warranty are valid only when the alarm valveis installed with Rapidrop trim set and installed asper installation guidelines.

2) Pressure relief valve is required with wet pipesystem, when a rise in ambient temperaturecan cause system pressure to exceed 17.5Bar (250 PSI). A 17.7 Bar relief valve settingshould be used.

3) For proper operation of the wet system and tominimize unwanted false alarm, it is importantto remove trapped air from the system. Theair trapped in the system may also causeintermittent operation of the Water MotorAlarm during sustained flow of water.

Nominal Pressure Loss vs Flow - Alarm Valve (Model C)

1000800600400 2000 10000700050003000200

Flow Rate in litres Per Minute ( LPM)

15000 20000

0.2

0.3

0.5

2.0

3.0

0.7

0.3100

1.0

0.01

0.02

0.03

0.04

0.05

0.06

0.08

0.1

0.2

700500400300200 1000 2000 40003000

Flow Rate in Gallons Per Minute ( GPM)

2mc/g

K ni ssoL erusserP lani

moN

IS

P ni ssoL erusserP lani

moN

80NB

( 3IN

CH)

100

NB( 4

INCH

)

150

NB( 6

INCH

)

200

NB( 8

INCH

)

Alarm Valve Model C





Page 4

ALARM VALVE, MODEL – C SIZE 200 / 150 / 100 / 80 NB

PART LIST

7

2

3

1

3

6

5

12

13

10

11

9

49

8

11

ITEM

1

DESCRIPTION

HOUSING

200NB

150NB

100NB

80NB

MATERIAL SPECIFICATION

1

2 1

3

4

2

5

1

6

1

7

1

8

1

9

410

2

PART NO. QTY.

11

1

1

2

SEAT

BODY BUSH

CLAPPER

RUBBER SEAT

RUBBER CLAMP

HEX. HEAD BOLT

CLAPPER BUSH

NEOPRENE RUBBER

BRASS

STAINLESS STEEL

STAINLESS STEEL

COVER

COVER GASKET

SQ. HEAD PLUG

HEX. HEAD BOLT

HINGE PIN

BRASS

DUCTILE IRON

NEOPRENE RUBBER

FORGED STEEL.

STEEL

STAINLESS STEEL

BRONZE

DUCTILE IRON

12

13

2650

2652

2599

8373

9430

2657

2651

2600

9101

2656

2655

2654

2658 1

2614

2616

2617

2618

2619

9101

2600 2

1

1

1

1

2258

2599

9004

9430

2620

2615

1

1

4

2

1

1

2

1

2604

2611

9430

9004

2599

2608

2600

9101

2628

2606

2603 DUCTILE IRON

2601

2607

1

1

1

1

2

1

1

1

2

1

1

2

6

2599

2638

9004

9430

2637

2631

2630

2632

2600

9102

2636

2635

2634

6

2

1

1

2

1

1

1

2

4

1

1

1

80NB

100NB

200NB

150NB

Alarm Valve Model C





Page 5

CONSTANT PRESSURE TRIM FOR ALARM VALVE MODEL - C200 / 150 / 100 / 80 NB

NOTE : WHEN PRESSURE SWITCH IS SUPPLIED THEN SL.NO. 22 PLUG NOT REQUIRED.

2926

28

10

28

29

1613

15 18

14

17

11

10

8

13

21

28

1

3

5

1615

14

17

NO

NC

NONO

24

25

D

1,28

6

3

1,28

7

2,29

49

19121

2

19

30

23

#

20

D

27

D

#@22

26

# OPTIONAL TRIM

NC - NORMALLY CLOSED

TO SUIT AT SITE BY USER

NO - NORMALLY OPENREMOVE ITEM (WHEN OPTIONAL TRIM IN USE)@

DRAIND

NOTES

Alarm Valve Model C





Page 6

CONSTANT PRESSURE TRIM FOR ALARM VALVE MODEL - C200 / 150 / 100 / 80 NB

254

26

25

PER ALARM VALVE SIZE

2

-

18

4

4

3

2

17

8

4

3

2

21

16

8

6

29

3/4"

3/4"

3/4"

28

TEE

1

NO.

2

ITEM

8625

8620

NO.CODE

HEX NIPPLE

DESCRIPTION

3

4

3

7

9

5

9

10

12

13

11

9

18

18

15

20

19

18

23

23

22

25

24

24

14

27

ELBOW8617

QUANTITY

80 NB100 NB150 NBSIZE

200 NB

4

3

2

8616 ELBOW 1/2" - - - 2

8951 PIPE NIPPLE 3/4" X 150 mm LONG 1 - - -

9407 PIPE NIPPLE 3/4" x 130 mm LONG - 1 - -

9406 PIPE NIPPLE 3/4" x 100 mm LONG - - 1 -

9397 PIPE NIPPLE 1/2" x 100 mm LONG - - - 1

9441 PIPE NIPPLE 3/4" X 80 mm LONG - 1 - -

9480 PIPE NIPPLE 1/2" x 80 mm LONG - 1 1 -

8628 UNION 11"4/3 1 -

8627 UNION -"2/1 - - 1

9421 SWING CHECK VALVE 11"4/3 1 -

9455 SWING CHECK VALVE -"2/1 - - 1

8633 REDUCING HEX NIPPLE --"2/1 X "4/3 - 1

8632 REDUCING HEX NIPPLE 11"4/1 X "4/3 1 1

8631 REDUCING HEX NIPPLE 11"4/1 X "2/1 1 1

9477 BALL VALVE 1/4" 2222

8698 HEX NIPPLE 222"4/1 2

8357 ELBOW 2"4/1 222

9526 PRESSURE GAUGE 1/4" 2222

1 - -

-

1

-

-

2304

-

- 1 -

1

1/2"2303

-

- -1/2"2302

-

ALARM TEST LINE ASSEMBLY



2301 ALARM TEST LINE ASSEMBLY 1/2"

1/2"

8355 REDUCING BUSH 22"2/1 x "4/3 2 1

1027 RESTRICTION NOZZLE ASSEMBLY 1/2” 1 1 1 1

9382 'Y' TYPE STRAINER 3/4" 1111

1111/2"PLUG8629 1

111RAPIDROP MODEL EA (5.9) 1416 SPRINKLER ALARM 1


-

1

1

-

1

-1-1/4"

2"

HEX NIPPLE8360

8359 HEX NIPPLE 1

-

- -- 11-1/4"9392 ANGLE VALVE

-112"9394 ANGLE VALVE 1

222 21/2" X 60 mm LONGPIPE NIPPLE9561

1 13/4" X 80 mm LONGPIPE NIPPLE9441 1 1

533 31/2"HEX NIPPLE8624

3221/2"TEE8619 2

8663 PIPE NIPPLE 3/4" x 70 mm LONG 1 --1

9426 PIPE NIPPLE 3/4" x 60 mm LONG - - 1 -

9893 PIPE NIPPLE ½" X 70 mm LONG - - - 1

2BALL VALVE9423 2"2/1 2 2

7

PRESSURE SWITCH-- 11/2" END CONNECTION 1 1 130

5 9406 PIPE NIPPLE 1 - - -3/4" x 100 mm LONG

6 9397 PIPE NIPPLE 1/2" x 100 mm LONG 1 - - 1

Alarm Valve Model C





Page 7

VARIABLE PRESSURE TRIM FOR ALARM VALVE MODEL - C200 / 150 / 100 / 80 NB

NOTE : WHEN PRESSURE SWITCH IS SUPPLIED THEN SL.NO. 22 PLUG NOT REQUIRED.

2926

28

10

28

29

1613

15 18

14

17

10

26

8

12

21

28

1

35

1615

14

17

NO

NC

NONO

19

30

1

23

#

27

21

22

31

20

#

@

2

#

#

D

D

32

#

#

11

24

25

D

6

3

1,28

7

2,29

4 9

19

1,28

# OPTIONAL TRIM


TO SUIT AT SITE BY USER

NO - NORMALLY OPENREMOVE ITEM (WHEN OPTIONAL TRIM IN USE)@

DRAIND

NOTES

Alarm Valve Model C





Page 8


254

2

-

18

4

4

3

2

17

8

4

3

2

21

16

8

6

3/4"

3/4"

3/4"

TEE

1

2

NO.ITEM

8625

8620

NO.CODE

HEX NIPPLE

DESCRIPTION

3

4

3

7

9

5

9

10

12

13

11

9

18

18

15

20

19

18

23

23

22

24

24

14

ELBOW8617

PER ALARM VALVE SIZEQUANTITY


200 NB

4

3

2

8616 ELBOW 1/2" - - - 2

8951 GNOL mm 051 X "4/3ELPPIN EPIP 1 - - -

9407 GNOL mm 031 x "4/3ELPPIN EPIP - 1 - -

9406 GNOL mm 001 x "4/3ELPPIN EPIP - - 1 -

9397 PIPE NIPPLE 1/2" x 100 mm LONG - - - 1

9441 GNOL mm 08 X "4/3ELPPIN EPIP - 1 - -

9480 PIPE NIPPLE 1/2" x 80 mm LONG - 1 1 -

8628 UNION 3/4" 1 1 1 -

8627 UNION 1/2" - - - 1

9421 SWING CHECK VALVE 3/4" 1 1 1 -

9455 SWING CHECK VALVE 1/2" - - - 1

8633 REDUCING HEX NIPPLE 3/4" X 1/2" - - - 1

8632 REDUCING HEX NIPPLE 3/4" X 1/4" 1 1 1 1

8631 REDUCING HEX NIPPLE 1/2" X 1/4" 1 1 1 1

9477 "4/1EVLAVLLAB 2222

8698 "4/1ELPPIN XEH 2 2 2 2

8357 ELBOW 1/4" 2222

9526 "4/1EGUAG ERUSSERP 2222

1 - -

-

1

-

-

2304

-

- 1 -

1

1/2"2303

-

- -1/2"2302

-




2301 ALARM TEST LINE ASSEMBLY 1/2"

1/2"

8355 REDUCING BUSH 1222"2/1 x "4/3

1027 RESTRICTION NOZZLE ASSEMBLY 1/2” 1 1 1 1

9382 'Y' TYPE STRAINER 3/4" 1111

1111/2"PLUG8629 1



-

1

1

-

1

-1-1/4"

2"

HEX NIPPLE8360

8359 HEX NIPPLE 1

-

8663 GNOL mm 07 x "4/3ELPPIN EPIP 1 --1

9426 GNOL mm 06 x "4/3ELPPIN EPIP - - 1 -

9893 PIPE NIPPLE ½" X 70 mm LONG - - - 1

2BALL VALVE9423 1/2" 2 2 2

7

---1PIPE NIPPLE94065 3/4" x 100 mm LONG

1--11/2" x 100 mm LONGPIPE NIPPLE93976

Alarm Valve Model C





Page 9


26

25

29

28

25

27

- -- 11-1/4"9392 ANGLE VALVE

-112"9394 ANGLE VALVE 1

222 21/2" X 60 mm LONGPIPE NIPPLE9561

1 13/4" X 80 mm LONGPIPE NIPPLE9441 1 1

533 31/2"HEX NIPPLE8624

3221/2"TEE8619 2

1111/2" END CONNECTION 1-- PRESSURE SWITCH30

RAPIDROP MODEL RA(5.10)

RETARD CHAMBER230031

HEX NIPPLE32 3/4".8625 1HEX NIPPLE

1 1

1

1

1

1

1

NO.ITEM

NO.CODE DESCRIPTION PER ALARM VALVE SIZE

QUANTITY


200 NB

Alarm Valve Model C





Page 10

VARIABLE PRESSURE TRIM - SCHEMATICALARM VALVE MODEL - C 200 / 150 / 100 / 80 NB

NOTE :-1) SPRINKLER ALARM CONTROL VALVE MUST BE

KEPT NORMALLY OPEN IF THIS VALVE IS KEPTCLOSED THE SPRINKLER ALARM BELL/ ELECTRICALARM WILL NOT SIGNAL.

2) SPRINKLER ALARM TEST VALVE MUST BE KEPTNORMALLY CLOSED CONDITION. VALVE ISOPENED TO TEST THE SPRINKLER ALARMBELL / ELECTRIC ALARM.

AV - ALARM VALVE

G - SPRINKLER ALARM

PG - PRESSURE GAUGE

PS - PRESSURE SWITCH

RC - RETARD CHAMBER

NON RETURN VALVE

VALVE

ANGLE VALVE

STRAINER

RESTRICTION NOZZLE

ASSEMBLY.

STOP VALVE

OPTIONAL

NO - NORMALLY OPEN

AT - SPRINKLER ALARM TEST VALVE

AC - SPRINKLER ALARM CONTROL VALVE

BY USER (NOT IN 'HD' SCOPE OF SUPPLY)


CONSTANT PRESSURE TRIM - SCHEMATICALARM VALVE MODEL - C 200 / 150 / 100 / 80 NB

UPSTREAM(FROM SUPPLY)

DOWNSTREAM(TO SYSTEM)

AT

TO DRAIN

AC

RC

PGPG

**PS

AV

TO DRAIN~

G

TO DRAIN

DOWNSTREAM(TO SYSTEM)

UPSTREAM(FROM SUPPLY)

AT

TO DRAIN

AC TO DRAIN~

PGPG

G

**PS

TO DRAIN

AV

Alarm Valve Model C





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A) CONSTANT PRESSURE TRIM

B) VARIABLE PRESSURE TRIM

SIZE 80NB

A

100NB

150NB

200NB

B

C

D

WITH VARIABLE PRESSURE TRIM

350

500

185

460

325

495

440

170130

440

320

495

270

450

115

440

E 185 205 215 250

INSTALLATION MEASUREMENT IN MM.(Approximate)

TO DRAIN

TOSPRINKLERALARM

A B

CD

E

TODRAIN

TODRAIN

TO DRAIN

ALARMSPRINKLERTO

ED

C

BA

440

115

380

270

400

320

440

130 170

440

425

325

460

185

450

350

WITH CONSTANT PRESSURE TRIM

D

C

B

NB200

NB150

NB100

A

NB80SIZE

250215205185E

INSTALLATION MEASUREMENT IN MM.(Approximate)

OVERALL DIMENSION WITH TRIM ALARM VALVE MODEL - C 200 / 150 / 100 / 80 NB

Alarm Valve Model C





Page 12

NOTICE: The equipment presented in this bulletin is to be installed in accordance with the lasted publication standards of NFPA or other similar organisations also with the provision of government codes or ordinances where applicable. The information provided by us are to the best of our knowledge and belief, and are general guidelines only. Site handling and installation control is beyond our reach. Hence we give no guarantee for result and take no liability for damages, loss or penalties whatsoever, resulting from our suggestion, information, recommendation or damages due to our product. Product development is a continuous programme of Rapidrop and hence the right to modify any specification without prior notice isreserved with the company.

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