Retarding Chamber is used with Alarm Valve Trim
when variable pressure is anticipated in the system. It
is holding tank to prevent sounding of Sprinkler Alarm
during water pressure surge, but will permit the sound
on sustained flow. The retard chamber is connected
from alarm valve, alarm port through restriction nozzle.
The retard chamber is part of UL Listed Alarm Valve
Trim. The retard chamber is made of stainless steel
material.
