Use With Foam; Foam Aspirating Attachments; Color Coded Handle Cover And Pistol Grips; Impulse Trigger Valve System Nozzle Colored Pistol Grips - Task Force Tips METRO 0 Series Instruction For Operation And Maintenance

6.0

USE WITH FOAM

The nozzle may be used with foam solutions. Refer to fire service training by the Authority Having Jurisdiction (AHJ) for the proper use
of foam.
WARNING
WARNING
WARNING
6.1

FOAM ASPIRATING ATTACHMENTS

Multi-expansion or low expansion aspirating attachments may be used with nozzles to increase the expansion ratio. These foam tubes
attach and detach quickly from the nozzle. As expansion ratio is increased, the reach of the nozzle will decrease due to the greater
amount of bubbles in the stream and their ability to penetrate the air. Generally, the straight stream reach with foam is approximately
10% less than with water only. Actual results will vary based on brand of foam, hardness of water, temperature, etc. For specific
information, see LIA-025 (MANUAL: Foam Attachments for TFT Nozzles).
7.0

COLOR CODED HANDLE COVER AND PISTOL GRIPS

Nozzles with lever type valve handles are supplied with black valve handle covers and pistol grips. The handle covers and pistol grips
are available from TFT in various colors for those departments wishing to color code the nozzle to the discharge controls. A colored
handle cover set will be sent upon receipt of the warranty card by TFT.
Handle covers are replaceable by removing the four screws that hold the handle covers in place. Use a 3/32" hex key when replacing
screws. Pistol grip is replaceable by following TFT instruction sheet LTT-108.
For standardization NFPA 1901 recommends the following color code scheme:
Preconnect #1 or Jump Line
Preconnect #2
Preconnect #3
Preconnect #4
Preconnect #5
Preconnect #6
Preconnect #7
Foam Lines
7.1

IMPULSE TRIGGER VALVE SYSTEM NOZZLE COLORED PISTOL GRIPS

The TFT Impulse Trigger Valve System nozzles are supplied with black pistol grip covers. The pistol grip covers are available from TFT
in various colors for those departments wishing to color code the nozzle to the discharge controls. Follow the steps below to change the
pistol grip cover.
1. Orient nozzle vertically. This keeps the dampening fluid in the pistol grip
out.
2. Remove the Cap. (1/2 in square drive) The Adjusting Screw (3/16 in Allen Wrench) may
need to be turned in or removed to be able to engage the square pocket in the cap.
Note the position of the Adjusting Screw before moving it.
3. Slide off the Pistol Grip Cover and install a new one. Be sure the Pistol Grip Cover's
internal rib is toward the back of the nozzle.
4. Reinstall the Cap until it bottoms out on its shoulder.
5. Reinstall or reposition the Adjusting Screw if it has been moved from its original
location.
6. Flow nozzle to check performance of slow closer. Adjust as needed.
©Copyright Task Force Tips LLC 2002-2020
For Class B fires, lack of foam or interruption in the foam stream can cause a break in the foam
blanket and greatly increase the risk of injury or death. Follow procedures established by the AHJ
for the specific fuel and conditions.
Improper use of foam or using the wrong type of foam can result in illness, injury, or damage to the
environment. Follow foam manufacturer's instructions and fire service training as directed by the
AHJ.
Use of compressed air foam (CAF) with hand held nozzles can cause sudden surges in nozzle
reaction force resulting in risk of injury or death from loss of footing or hose whipping. Be prepared
for sudden changes in nozzle reaction caused by:
• Slug loading (Loss of foam concentrate sends slugs of air and water into the nozzle)
• Sudden release of built-up pressure in the hose when opening a nozzle
Orange
Red
Yellow
White
Blue
Black
Green
Red w/ White Border (Red/White)
Other Colors Available:
- Gray
- Pink
- Purple
- Tan
from spilling
12
Cap
(1/2 in square drive)
Pistol Grip Cover
Adjusting Screw
(3/16 in Allen Wrench)
LIN-040 November 30, 2020 Rev15