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5.0 USE OF METRO II NOZZLES
IT IS THE RESPONSIBILITY OF THE INDIVIDUAL FIRE DEPARTMENT OR AGENCY TO DETERMINE PHYSICAL
CAPABILITIES AND SUITABILITY FOR AN INDIVIDUAL'S USE OF THIS EQUIPMENT.
Many factors contribute to the extinguishment of a fire. Among the most important is delivering water at a flow rate
sufficient to absorb heat faster than it is being generated. The flow rate depends largely on the pump discharge pressure
and hose friction loss. The pump discharge pressure may be found by use of the chart in section 8.0 It can also be
calculated using a hydraulic equation such as:
For additional information on calculating specific hose
layouts, consult an appropriate fire service training manual,
such as IFSTA, or
A Guide to Automatic Nozzles
"Hydraulics Hotline" at 800-348-2686.
6.0 FIELD INSPECTION
TFT's Metro II is designed and manufactured to be damage resistant and require minimal maintenance. However, as the
primary fire fighting tools upon which your life depends, they should be treated accordingly.
Use with saltwater is permissible provided nozzle is thoroughly cleaned with fresh water after each use. The service life of
the nozzle may be shortened due to the effects of corrosion and is not covered under warranty.
WARNING
Performance tests shall be conducted on the Metro II nozzle after a repair, or anytime a problem is reported to verify
operation in accordance with TFT test procedures. Consult factory for the procedure that corresponds to the model and
serial number of the nozzle. Any equipment which fails the related test criteria should be removed from service
immediately. Troubleshooting guides are available with each test procedure or equipment can be returned to the factory
for service and testing.
Factory service is available with repair time seldom exceeding one day in our facility. Factory serviced nozzles are
repaired by experienced technicians to original specifications, fully tested and promptly returned. Any returns should
include a note as to the nature of the problem, who to reach in case of questions and if a repair estimate is required.
CAUTION
All Task Force Tip nozzles are factory lubricated with high quality silicone grease. This lubricant has excellent washout
resistance and long term performance. If your department has unusually hard or sandy water, the moving parts may be
affected. Foam agents and water additives contain soaps and chemicals that may break down the factory lubrication.
The moving parts of the nozzle should be checked on a regular basis for smooth and free operation, and signs of
damage.
IF THE NOZZLE IS OPERATING CORRECTLY, THEN NO ADDITIONAL LUBRICATION IS NEEDED.
nozzle that is not operating correctly should be immediately removed from service and the problem corrected.
7.0 REPAIR
Factory service is available with repair time seldom exceeding one day in our facility. Factory-serviced nozzles are
repaired by experienced technicians to original specifications, fully wet tested, and promptly returned. Repair charges for
non-warranty items are minimal. Any returns should include a note as to the nature of the problem and whom to reach in
case of questions.
Task Force Tips assumes no liability for damage to equipment or injury to personnel that is a result of user service.
Repair kits and repair parts are stocked for immediate shipment. Contact the factory or visit the website at www.tft.com for
parts lists, exploded views, test procedures and trouble shooting guides.
©Copyright Task Force Tips, Inc. 2002
, or call TFT's
Nozzle must be inspected for proper operation and function according to inspection
checklist on last page before each use. Any nozzle that fails inspection is dangerous to
use and must be repaired before using.
Any alterations to the nozzle and its markings could diminish safety and constitutes a
misuse of this product.
PDP = NP+FL+DL+EL
PDP
= Pump discharge pressure in PSI
NP
= Nozzle pressure in PSI
FL
= Hose friction loss in PSI
DL
= Device loss in PSI
EL
= Elevation loss in PSI
Any
7
LIN-040 April 2, 2002 Rev 0
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