Series 751 FireLock® Alarm Check Valve
12
REQUIRED INTERNAL INSPECTION
Inspect internal components every five years, as required by the
current NFPA-25 code. The authority having jurisdiction in the area may
require these inspections on a more frequent basis. Verify these
requirements by contacting the authority having jurisdiction in the
affected area.
1.
Notify the authority having jurisdiction, remote station alarm mon-
itors, and those in the affected area that the system is being taken out
of service.
2.
Close the water supply’s main control valve to take the system out
of service.
3.
Open the system’s main drain valve, and allow the system to drain
completely. It may be necessary to open the remote system test valve
(inspector’s test connection) and any auxiliary drains in order to drain
the system completely.
4.
After all pressure is released from the system, loosen the cover
plate bolts slowly.
NOTE:
DO NOT remove any cover plate bolts until all
bolts are loosened.
4a.
Remove all cover 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 follow this instruction could result in
serious personal injury and/or property dam-
age.
CAUTION
• Any activities that require taking the valve out
of service may eliminate the fire protection
provided.
• Before servicing or testing the system, notify
the authority having jurisdiction.
• Consideration of a fire patrol should be given
in the affected areas.
Failure to follow these instructions could cause
serious personal injury and/or property damage.
Water
S
upply
’s
Main Control Valve
WARNING
• Make sure the valve is depressurized and
drained completely before the cover plate
bolts are removed.
The cover plate could blow off if the bolts are
removed while the valve is pressurized, result-
ing in serious personal injury and/or property
damage.
CAUTION
• DO NOT use solvents or abrasives on or near the valve body seat
ring.
Failure to follow this instruction could prevent the clapper from seal-
ing properly, resulting in improper valve operation and/or valve leak-
age.
S
y
s
tem
’s
Main
Drain Valve