Model A
Pipe Line Strainer
General
Description
TYCO Model A Pipe Line Strainers are
designed for installation in the water
supply connection to automatic sprin-
kler, water spray deluge, foam-water
deluge, or standpipe fire protection
systems� The strainers are used where
it is necessary to protect spray nozzles,
sprinklers, or other type discharge
outlets from obstruction by debris that
may be present in the water supply�
The Model A Pipe Line Strainer is a
redesignation of the Gem Model A�
NOTICE
The Model A Pipe Line Strainers
described herein must be installed
and maintained in compliance with this
document, as well as with the applica-
ble standards of the NATIONAL FIRE
PROTECTION ASSOCIATION (NFPA),
in addition to the standards of any other
authorities having jurisdiction. Failure
to do so may impair the performance
of these devices.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating con-
dition. Contact the installing contrac-
tor or product manufacturer with any
questions.
IMPORTANT
Refer to Technical Data Sheet
TFP2300 for warnings pertaining to
regulatory and health information.
Always refer to Technical Data
Sheet TFP700 for the "INSTALLER
WARNING" that provides cautions
with respect to handling and instal-
lation of sprinkler systems and com-
ponents. Improper handling and
installation can permanently damage
a sprinkler system or its compo-
nents and cause the sprinkler to fail
to operate in a fire situation or cause
it to operate prematurely.
Page 1 of 4
Technical
Data
Approvals
UL Listed
ULC Listed
FM Approved
Sizes
3, 4, 6, 8 & 10 Inch
(DN80, DN100, DN150, DN200 & DN250)
Maximum Working Pressure
175 psi (12,1 bar)
Friction Loss and Equivalent
Lengths of Pipe
Refer to Graph A
Finish
Galvanized
Physical Characteristics
Body � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Steel
Inlet Connection � � � � � � � � � � � � � � � � � � Cast Iron
Outlet Connection � � � � � � � � � � � � � � � � � Cast Iron
Flushing Connection
End Closure� � � � � � � � � � � � � � � � � � � � � � Cast Iron
Nuts and Bolts � � � � � Zinc Plated, Carbon Steel
Ring Gaskets � � � � � � � � � � � � � � � � � � SBR Rubber
Basket Assembly � � � Stainless Steel or MONEL
Strainer Basket Screen
Strainer basket screen is perforated by
1/8 inch (3,2 mm) diameter holes spaced
to provide 40 percent open area�
Design
Criteria
Install TYCO Model A Pipe Line Strain-
ers horizontally with the flushing con-
nection oriented down (Ref� Figure 1)�
A saddle support accommodating the
body nominal pipe size (Ref� Figure 1)
must be located beneath the strainer
on center with the outlet� If outlet Angle
"J" is other than 180°, additional pro-
visions must be made for separate
support of the outlet piping�
MAY 2021
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Contacts
The strainer must be located with ade-
quate clearance to allow complete
removal of the basket assembly for
cleaning and maintenance (Ref� Figure
1)�
When planning installation, consider-
ation must be given to disposal of the
Cast Iron
large quantities of water that may be
required to ensure thorough clean-
ing of the basket assembly during
flushing� Typically, the flushing con-
nection is fitted with an appropriately
sized, normally closed, valve and hose
connection�
Installation
The TYCO Model A Pipe Line Strainer
is shipped as an assembly� Threaded
inlet and flanged outlet and flushing
connections (Ref� Figure 1 and Table
A) are to be made in accordance with
accepted piping practices� Provisions
for the pipe saddle, basket removal
clearance, and strainer flushing must
be made in accordance with the
requirements described in the Design
Criteria section�
TFP1640
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