Component Disorder Corrective Action
Nitrogen Cylinder Unreadable, faded, or corroded dial Depressurize cylinder and replace valve assembly, or consult
(Continued) Product Services, Tyco Fire Protection Products,
Marinette, Wisconsin 54143-2542.
Gauge pointer below acceptable Check pressure with test gauge (Part No. 2737), tapping valve
operating range gauge lightly to check for mechanical disorder (gauge pointer
loose or immovable). If test gauge pressure reading confirms
valve gauge pressure reading, perform leakage test as outlined in
‘’Valve Leakage Suspected,’’ taking the appropriate action indicat-
ed. If valve leak test is negative, test cylinder for pin hole leaks,
discard cylinder after rendering it unusable by depressurization,
removal of valve, and destruction of internal and external threads.
If leak is detectable, consult Product Services, Tyco Fire
Protection Products, Marinette, Wisconsin 54143-2542.
Gauge pointer above acceptable Check pressure with test gauge (Part No. 2737), tapping valve
operating range gauge lightly to check for mechanical disorder (gauge pointer
loose or immovable) and then bleed off excess pressure, or
depressurize cylinder and replace valve assembly.
Corroded, bent, or worn cylinder Clean and refinish; repair and refinish; or replace.
retaining bracket
Loose or binding cylinder retaining Adjust fit by tightening or loosening bracket; adjust screw, or
bracket replace bracket.
Worn or missing protective cylinder Replace webbing (Part No. 3360) or grommet (Part No. 8688).
bracket webbing or grommet
Wrong cylinder retaining bracket Replace bracket with type specified by ANSUL only.
Pressure Corroded, dented, or otherwise Replace regulator(s).
Regulator damaged
Regulator safety relief valve corroded, Replace valve.
plugged, dented, broken, or missing
Expellant Gas and Broken or missing visual inspection seals Replace seals.
Agent Control
Valve
Bent, corroded or binding ring pin Replace ring pin.
Valve immovable, stiff, inoperable, Disconnect, disassemble, and clean, replacing parts as required.
or leaking
Pressure Relief Corroded, plugged, dented, broken, Clean, repair, and test before reinstalling; or replace valve.
Valve or missing
Hose (Expellant Gas Cut, cracked, abraded, or deformed Replace entire hose assembly or hose only if coupling
and Agent) exterior is reusable type.
Corroded, or cracked coupling, Replace entire hose assembly or coupling only if reusable type.
swivel joint or ferrule
Corroded, cross-threaded or worn Replace entire hose assembly or coupling only if reusable type.
coupling threads
Internal blockage Clear by blowing dry air or nitrogen at 220 psi (15.17 bar)
through hose.
Coupling gasket brittle, compression Replace, lubricating clean new gasket lightly with a good grade of
set, cut, cracked, or missing high heat resistant grease before insertion.
SERVICE AND REPAIR
CAUTION
!
Do not leave open end of hose unattended unless adequate-
ly restrained to prevent whipping, endangering life/safety.
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