Kidde Fire Systems Argonite User Manual

6-13
July 2004
Argonite
®
Engineered Fire Suppression System
38-KFSARG-000
RELIEF DEVICE,
4351 PSI (300 BAR) MAX
AT 70°F (21°C)
TORQUE 17 TO 19 LB.-FT.
1” NPT
35 MM HEX
INLET, 3/4” NPT
Figure 6-16. Pressure Relief Valve, P/N 38-509836-001
6-7 RESTRICTOR/ORIFICE
The high-pressure 2900 PSI (200 bar) Argonite is discharged into the distribution pipe network
through a restrictor assembly. During agent flow, the restrictor reduces the initial manifold
pressure before the agent enters the distribution piping. The size of the orifice is calculated
based on the required discharge time and the required flow.
The restrictors are normally fitted onto the discharge manifolds; however, in certain casesfor
example, single cylinder systemsthe restrictor is installed directly at the beginning of the
discharge piping. Discharge pipe/manifold pipe type restrictors are female NPT to female NPT,
threaded.
The restrictor assures that the Argonite will be delivered to the distribution pipe network and
discharge nozzles at the proper predetermined pressure. Restrictors are available in 1/2", 1",
1½" or 2" NPT. Larger 2½", 3" and 4" flange type orifice plate restrictors are also available.

Kidde Fire Systems Argonite Specifications

General

Brand	Kidde Fire Systems
Model	Argonite
Category	Fire Alarms
Language	English