Victaulic 768N FireLock NXT Series User Manual

I-768N / Series 768N FireLock NXT
™
Dry Valve / Installation, Maintenance, and Testing Manual
SECTION VI
• Removing and Replacing the
Clapper Seal
• Removing and Replacing the
Clapper Assembly
• Installing the Cover Plate
Gasket and Cover Plate
• Removing and Replacing the
Diaphragm
• Cleaning the Cartridge in the
Air and Priming Manifold
Assemblies
• Replacing the Filter in
Series 776 Low-Pressure
Actuators
WARNING
• Before servicing or testing the system, notify the authority having
jurisdiction.
• Depressurize and drain the piping system before attempting to remove the
cover plate from the valve.
• The building owner or their representative is responsible for maintaining the
fire protection system in proper operating condition.
• To ensure proper system operation, valves must be inspected in accordance
with current NFPA-25 requirements or in accordance with the requirements
of the local authority having jurisdiction (whichever is more stringent).
Always refer to the instructions in this manual for additional inspection and
testing requirements.
• The frequency of inspections must be increased in the presence of
contaminated water supplies, corrosive/scaling water supplies, and corrosive
atmospheres.
• Any activities that require taking the valve out of service may eliminate
the fire protection provided. A fire patrol is strongly recommended for the
affected areas.
Failure to follow these instructions could cause system failure, resulting in
death or serious personal injury and property damage.
I-768N_ 26 REV_C

Victaulic 768N FireLock NXT Series Specifications

General

Brand	Victaulic
Model	768N FireLock NXT Series
Category	Control Unit
Language	English