
TFP1546
Page 14 of 16
Care and
Maintenance
The TYCO Resilient-Seated Gate
Valves with Vertical or Cross Wall Post
Indicators must be maintained and ser-
viced in accordance with this section.
Before closing a fire protection system
main control valve for maintenance
work on the fire protection system that
it controls, permission to shut down the
affected fire protection system must
be obtained for the proper authorities
and notify all personnel who may be
affected by this action.
After placing a fire protection system
in service, notify the proper authorities
and advise those responsible for moni-
toring proprietary and/or central station
alarms.
The owner is responsible for the
inspection, testing, and maintenance of
their fire protection system and devices
in compliance with this document, as
well as with the applicable standards
of the NFPA, for example, NFPA 25, in
addition to the standards of any author-
ities having jurisdiction. Contact the
installing contractor or sprinkler man-
ufacturer regarding any questions.
Automatic sprinkler systems are rec-
ommended to be inspected, tested,
and maintained by a qualified inspec-
tion service in accordance with local
requirements and/or national codes.
Gate Valve
Debris lodged in the sealing area of the
wedge may cause the valve to close
hard. Backing off the indicator wrench
or handwheel and closing it again,
several times if necessary, can correct
this problem.
The valve should never be forced to
seat by applying a wrench or exten-
sion to the lever, as it may distort the
valve components or score the sealing
surfaces. All replacement parts must
be obtained from the manufacturer to
assure proper operation of the valve.
Vertical Indicator Post
It is recommended that Vertical Indi-
cator Posts used to operate fire pro-
tection system water control valves be
locked in the fully open position using
the wrench. The locks must be sturdy
and resistant to breakage except by
heavy bolt cutters.
It is recommended that a visual inspec-
tion be carried out on a monthly basis
to ensure:
• the Post Cap, Upper Barrel, and win-
dows have not been damaged
• the Targets indicate that the valve is
open
• the Wrench is in place on the Post
and is securely locked
It is further recommended that on a
quarterly basis, the Vertical Indicator
Post should be closed two turns and
then reopened to verify that the PIV
is in the fully open position and prop-
erly engages with the Post. Where a
Supervisory Switch is installed, a check
should be undertaken to ensure that
the contacts are working properly.
Any missing or damaged parts should
be immediately replaced.
Note: If the target carrier yoke must be
disassembled or cleaned for any reason,
apply LOCTITE LB8150 or an equivalent
grease as a lubricant to the stainless-
steel threads of the operating nut prior to
reassembly.
Technical
Data
Sizes
2 in. to 24 in. (DN50 to DN600)
Approvals
UL and ULC Listed
FM Approved
Russian Fire Certificate
UL, ULC and FM Maximum Working
Pressure
• 2 in. to 12 in. (DN200 to DN300):
300 psi (20,7 bar)
• 14 in. to 24 in. (DN350 to DN600):
250 psi (17,2 bar)
Flanges
ASME B16.1/ASME B16.42
EN 1092-2/ISO 7005-2/
Drilled to ANSI Class 150, PN16, or
AS 2129. See Table E.
Materials of Construction
See individual valve and indicator parts
lists in Figures 1, 4, and 6.
2 INCH (DN50)
8 INCH (DN200)
4 INCH (DN100)
6 INCH (DN150)
10 INCH (DN250)
12 INCH (DN300)
FLOW RATE IN GALLONS PER MINUTE (GPM)
FLOW RATE IN LITRES PER MINUTE (LPM)
(1 GPM = 3,785 LPM)
400300200100 600 800 1000 60002000 3000 4000 10000
0.10
0.20
0.30
0,008
0,009
0,005
0,006
0,007
0,010
0,004
0,020
4000 60002000 3000800400 600 1000 20000 3000010000
0.06
0.05
0.09
0.08
0.07
NOMINAL PRESSURE DROP IN BAR
(1 PSI = 0,06895 BAR)
NOMINAL PRESSURE DROP
IN POUNDS PER SQUARE INCH (PSI)
GRAPH A
GATE VALVE FRICTION LOSS