Victaulic 751 FireLock Series Installation, Maintenance, And Testing Manual Download Page 10

Series 751 FireLock® Alarm Check Valve

9

PLACING THE SYSTEM IN SERVICE

1.

Confirm that system drains are shut and the system is free of 

leaks.

2.

Open the remote system test valve (inspector’s test connection) 

and any auxiliary drains to remove all air from the system.

3.

Close the alarm line ball valve to prevent alarms from operating 

while the system is filling. Alarms and electrical panels (controlled by an 
alarm flow switch on the riser) cannot be interrupted. 

NOTE:

 If alarm 

activation is possible, notify local fire companies that the system is 
being serviced. 

4.

Open the water supply’s main control valve slowly.

5.

Allow the system to fill with water completely. Allow water to flow 

from the remote system test valve (inspector’s test connection) and any 
auxiliary drains until all trapped air is removed from the system.

6.

After a steady flow of water is established and all air is released 

from the system, close the remote system test valve (inspector’s test 
connection) and any auxiliary drains in the system.

7.

Record the system pressures. The system pressure gauge 

should be equal to or greater than the water supply pressure gauge.

8.

Open the alarm line ball valve.

9.

Confirm that all valves are in their normal operating positions 

(refer to table below).

10.

Notify the authority having jurisdiction, remote station alarm mon-

itors, and those in the affected area that the system is in service.

CAUTION

• The Series 751 Alarm Check Valve and supply piping must be pro-

tected from freezing temperatures and mechanical damage.

• For proper operation of alarms in a wet system, it is important to 

remove all air from the system. Auxiliary drains may be required to 
release all trapped air from the system.

Failure to follow these instructions could cause improper valve oper-
ation, resulting in personal injury and/or property damage.

CAUTION

• Take precautions when opening the water supply’s main control 

valve because water will flow from all open system valves.

Failure to follow this instruction could result in property damage.

Alarm Line

Ball Valve

Water 

S

upplyí

s

Main Control Valve

CAUTION

• The alarm line ball valve must be open to allow alarms to activate.

Failure to follow this instruction will prevent alarms from activating 
during a fire condition, resulting in personal injury and/or property 
damage.

Valve

Normal Operating Position

Alarm Line Ball Valve

Open

Alarm Test Ball Valve

Closed

Alarm Line

Ball Valve

Summary of Contents for 751 FireLock Series

Page 1: ...ctions before attempting to install any Victaulic piping products Wear safety glasses hardhat and foot protection Save this installation maintenance and testing manual for future reference If you need...

Page 2: ...apper Seal for 4 6 inch 100 150 mm Size Valves 16 Removing and Replacing the Clapper Assembly All Sizes 17 Installing the Cover Plate Gasket and Cover Plate 18 Troubleshooting Series 751 Alarm Check V...

Page 3: ...d spring loaded components i e clapper assembly 8 Keep work areas clean Cluttered areas benches and slippery floors can create hazardous working conditions 9 PROTECT THE SYSTEM FROM FREEZING CONDITION...

Page 4: ...3 286 305 229 127 127 16 0 23 6 4 4 500 15 03 23 50 29 00 14 00 13 50 15 00 10 00 5 80 5 80 49 0 80 0 100 114 3 381 76 597 737 356 343 381 254 147 147 22 2 36 3 6 6 625 16 00 24 00 30 11 17 28 14 25 1...

Page 5: ...ssure Gauge 0 300 psi 0 2068 kPa 11 Series 705W Butterfly Valve Optional 5 Alarm Line Ball Valve NO 12 Style 005 FireLock Rigid Coupling Optional 6 Alarm Test Line Ball Valve NC 13 PS10 1 or PS10 2 Al...

Page 6: ...System s Main Drain Valve 3 Swing Check Valve 9 Series 760 Water Motor Alarm Optional 4 System Pressure Gauge 0 300 psi 0 2068 kPa 10 Series 705W Butterfly Valve Optional 5 Alarm Line Ball Valve NO 11...

Page 7: ...9 Clapper Spring 2 Clapper 10 Spacers Qty 2 3 Clapper Seal 11 Clapper Shaft 4 Seal Ring 12 Clapper Shaft Retaining Plug Qty 2 5 Seal Washer Not Used on 1 2 40 50 mm Valves 13 Cover Plate 6 Seal Retain...

Page 8: ...1 2 2 875 Z024751201 Z024751251 165 1 mm 6 500 Z060751201 Z060751251 65 73 0 165 1 76 1 mm 3 000 Z024751201 Z024751251 8 8 625 Z080751201 Z080751251 76 1 200 219 1 3 3 500 Z024751201 Z024751251 80 88...

Page 9: ...ntain an uninterrupted low pressure alarm that is installed on the piston charge line down stream of the check valve VALVE TRIM INSTALLATION 1 Make sure trim drawings match system requirements Refer t...

Page 10: ...water supply pressure gauge 8 Open the alarm line ball valve 9 Confirm that all valves are in their normal operating positions refer to table below 10 Notify the authority having jurisdiction remote...

Page 11: ...ea that the main drain test will be per formed 2 Confirm that sufficient drainage is in place for a full flow drain test 3 Record the water supply s pressure and the system s water pres sure 4 Close t...

Page 12: ...he proper water supply pressure 10 Open the alarm line ball valve 11 Confirm that all valves are in their normal operating positions refer to table below 12 Notify the authority having jurisdiction re...

Page 13: ...over plate bolts along with the cover plate and cover plate gasket WARNING Depressurize and drain the piping system before attempting to remove the cover plate from the alarm check valve Failure to fo...

Page 14: ...NOT USE SOLVENTS OR ABRASIVES 6 Inspect the clapper for freedom of movement and physical dam age Replace any damaged or worn parts by following the applicable instructions in the Maintenance section...

Page 15: ...ture that is under the seal washer and on the clapper seal WARNING Depressurize and drain the piping system before attempting to remove the cover plate from the alarm check valve Failure to follow th...

Page 16: ...clapper 9 Install the clapper seal into the clapper carefully Make sure the seal ring snaps into the clapper completely 10 Place the seal retaining ring onto the seal washer of the clapper seal 11 Ins...

Page 17: ...taulic supplied solid clapper seal 5 Make sure contaminants dirt and mineral deposits are removed from the clapper 6 Install the solid clapper seal into the clapper NOTE Make sure the sealing lip is p...

Page 18: ...g will drop out of position Keep the spacers and clapper spring for re installation 3 Remove the clapper from the valve body 4 Place the new clapper assembly onto the valve body seat ring Make sure th...

Page 19: ...stem in Service section starting on page 9 Installing the Cover Plate Gasket and Cover Plate 1 Verify that the cover plate gasket is in good condition If the gasket is torn or worn replace it with a n...

Page 20: ...ting on page 9 CAUTION DO NOT over tighten the cover bolts Failure to follow this instruction could cause damage to the cover plate gasket resulting in valve leakage Required Cover Bolt Torque Valve S...

Page 21: ...mage Make sure no debris is present on the clapper seal and seat Make sure there is no vacuum in the alarm line If a vacuum is present in the alarm line install the Series 752V Retard Vent Kit or crea...

Page 22: ...84 7444 Fax 905 884 9774 Phone 32 9 381 15 00 Fax 32 9 380 44 38 e mail viccanada victaulic com e mail viceuro victaulic be VICTAULIC AMERICA LATINA VICTAULIC ASIA PACIFIC P O Box 31 Easton PA USA 180...

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