3
2.1 VARIOUS MODELS AND TERMS
Fixed Flow:
Tip Only:
A nozzle with a discharge
orifice that is a fixed opening size.
a nozzle without an integral
ball shutoff valve. A Metro tip only nozzle
is available in a variety of flow ranges
and configurations. All models deliver
the rated flow when the rated pressure is
supplied to the nozzle.
METRO 1
1-1/2
Field Changeable
Fixed Flow
(small body)
To Any of 10 Sizes
SERIES
RECOMMENDED
FLOW SETTINGS
NOZZLE TYPE
HOSE SIZE (INCHES)
METRO 2
1-1/2 to 2-1/2
Field Changeable
Fixed Flow
(large body)
To Any of 8 Sizes
FIGURE 1
COMMON MODEL AND TERMS
TIP ONLY NOZZLE
WITH TWIST SHUTOFF
VALVE POSITION
LABEL
VALVE RING
Metro
1
TIP ONLY NOZZLE
BARREL
LABEL
NAME LABEL
FLOW
CONTROL
WASHER
Metro
1
COUPLING
PISTOL
GRIP
STREAM
SHAPER
ON
FL
OW
CONTR
O
L
OFF
DETENTS
Metro
1
NOZZLE WITH VALVE
and INTEGRAL PISTOL GRIP
NH (National Hose Threads per NFPA #1963) threads are standard on all nozzles. Other threads such as NPSH (National Pipe Straight
Hose threads per ANSI/ASME #B1.20.7) can be specified at time of order.
2.2 NOZZLE COUPLING
CAUTION
Nozzle must be properly connected. Mismatched or damaged threads may cause nozzle to leak or
uncouple under pressure and could cause injury.
CAUTION
Dissimilar metals coupled together can cause galvanic corrosion that can result in the inability to
unscrew the threads of complete loss of thread engagement over time. Per NFPA 1962 (1998
edition), if dissimilar metals are left coupled together an anti-corrosive lubricant should be applied
to the threads. Also the coupling should be disconnected and inspected at least quarterly.
3.0 FLOW CHARACTERISTICS
The opening size of the Metro nozzles may be field set to any one of the several different sizes. At each flow setting the nozzle is set to a
predetermined fixed orifice. Relationship of flow and nozzle pressure at each setting is shown below.
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
0
50
100
150
200
250
300
95 GPM @ 100 PSI (K=9.5)
125 GPM @ 100 PSI (K=12.5)
125 GPM @ 75 PSI (K=14.4)
150 GPM @ 100 PSI (K=15.0)
150 GPM @ 75 PSI (K=17.3)
175 GPM @ 100 PSI (K=17.5)
200 GPM @ 100 PSI (K=20.0)
175 GPM @ 75 PSI (K=20.2)
150 GPM @ 50PSI (K=21.2)
200 GPM @ 75 PSI (K=23.1)
PRES
SURE
(PSI)
FLOW (GPM)
190
380
550
750
950
1140
k
m n
l
j
o
s
r
p q
k
m
n
l
j
o
s
r
p
q
METRO 1 FLOW CHART
FLOW (L/min)
3.45 bar
2.76 bar
2.07 bar
1.38 bar
0.69 bar
6.90 bar
6.20 bar
5.52 bar
4.83 bar
4.12 bar
10.34 bar
9.65 bar
8.96 bar
8.27 bar
7.58 bar
©Copyright Task Force Tips, Inc. 2002-2008
LIN-040 October 28, 2008 Rev 05
