System Components
UL EX-4510 2-1-12 Page 1-15.1
REV. 6
Description
The pressure reducer/nipple is required to restrict the flow
of INERGEN
® agent thus reducing the agent pressure
downstream of the nipple. The nipple contains an orifice
which is drilled to the specific size hole required based on
the flow calculation.* The pressure reducer/nipple part
number and orifice size are stamped on the body hex. The
orifice nipple is available in two sizes: 2 1/2 in., and 3 in.
NPT.
Note: Refer to “Nozzle/Pressure Reducer Range Chart” in
Design Section for detailed orifice range information.
* Orifice diameter must be specified when placing order.
Pressure Reducer/Nipple
Shipping Assembly
Part No. Description
417057 2 1/2 in. NPT pressure
reducer/nipple
417058 3 in. NPT pressure
reducer/nipple
Nipple Size Hex Size “A” Dim.
2 1/2 in. 3 in. 4 3/8 in.
3 in. 3 1/2 in. 4 1/2 in.
Component Material Thread Size Approvals
Pressure Reducer/ Body: Brass 2 1/2 in., 3 in. NPT UL Listed (EX-4510); Listed for use
Nipple with FM Approved systems
A
002198
ANSUL
®
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One Stanton Street +1-715-735-7411
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