Post-Discharge Maintenance
July 2018
7-2
06-237518-001
7-3
CYLINDER/VALVE REPLACEMENT
Follow these steps to replace the valve on the cylinder.
1. Secure the cylinder and ensure the cylinder has been discharged of Agent contents.
2. Remove the old valve.
3. Ensure there is no tread tape left on the cylinder neck. Make sure the cylinder is clean and
dry inside.
4. Wrap the valve’s 25E EN 629-1 thread with 10-12 rounds of PTFE sealing tape; Quality:
Grade L according to BS 7786 (1995) or PFTE-Paktape 0.057 mm. Apply the tape in a clock-
wise direction on the tapered thread in an even pattern, starting 2 mm from the start of
the thread and ending approximately 2 mm from end of the thread.
5. Screw the valve into an empty, clean and dry cylinder.
6. Apply a torque of be between 200 Nm and 220 Nm (DS/EN-ISO 13341) to the valve to en-
sure proper installation.
7. Remove excess tape material after the valve has been screwed into the cylinder.
WARNING
Valve replacement is not UL Listed or FM Approved.
WARNING
Safety is the primary concern. Never assume that a cylinder is empty. Treat all
Kidde Agent cylinders as if they are fully charged. The Kidde cylinder valve is
capable of producing dangerously high discharge forces from the valve outlet if
not handled properly.
Remember that pressurized cylinders are extremely hazardous. Always fit the
transport safety cap before any movement of the cylinder and always use
appropriate cylinder trolley or similar. Failure to do so can result in serious
bodily injury, death and property damage.
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