Kidde Fire Systems ECS Manual page 125

Post-Discharge Maintenance
Never install any type disc other than specified in Table 6-4 for the appropriate
cylinder. Installing the incorrect disc could result in violent rupture of the
cylinder and serious injury.
Make sure that multiple safety discs are not stuck together. Installing more
than one safety disc could result in violent rupture of the cylinder and serious
WARNING
injury.
Never reinstall a used safety disc and/or washer. Once the retainer has been
removed or the valve has been rebuilt, the disc and washer must be replaced
with new components.
Table 6-4. Safety Disc Replacement (11/2 in, 2 in and 21/2 in Valve)
Valve Size Safety Disc P/N
1 1/2 in WK-242461-000
2 in WK-264925-000
2 1/2 in WK-264929-000
October 2014
VALVE
Figure 6-5. Safety Disc Replacement
Safety Disc Washer P/N
WK-294500-000
WK-220360-000
WK-220362-000
6-6
SAFETY
DISC
WASHER
SAFETY
DISC
SAFETY
DISC
RETAINER
Torque Valve
33 ft lb
38 ft lb
48 ft lb
PSIG @ 70°F
750-900
800-975
800-975
06-236115-001