Name: Kidde Fire Systems Argonite
Brand: Kidde Fire Systems
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6-15

July 2004

Argonite

Engineered Fire Suppression System

38-KFSARG-000

6-7.2 Orifice Plate Restrictor Assemblies

For large systems with 2-1/2, 3, or 4 inch pipe, use a Class 1500# flange. Only the orifice

plate will be provided by Kidde Fire Systems. The flange nuts must be torqued to at least the

minimum required by the flange manufacturer. See Figure 6-18 and Table 6-10.

ORIFICE PLATE RESTRICTOR

(P/N’S IN TABLE PROVIDE

ONLY THIS COMPONENT)

NUT *

GASKET *

CLASS 1500#

FLANGE *

BOLT *

* PROVIDED BY

INSTALLER

FLOW

Figure 6-18. Flanged Restrictor Assembly

Table 6-10. Flange Restrictor Assembly Details

Part Number Description

38-250001-XXX 2½ in. Orifice Plate Restrictor, Code 13.5 to 35.0

38-300001-XXX 3 in. Orifice Plate Restrictor, Code 18.0 to 43.0

38-400001-XXX 4 in. Orifice Plate Restrictor, Code 25.0 to 56.0

Note: When ordering, specify an 11-digit hypenated part number; the flanged orifice plate restrictor part number plus the

three-digit orifice code (e.g., 38-300001-240 to order a 3 in. flanged orifice plate, orifice code 24.0).

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Kidde Fire Systems Argonite Specifications

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