©Copyright Task Force Tips, Inc. 2010
LIA-420 July 12, 2010 Rev00
7
5.5 FLOW INCREASE FROM BOOSTING
FLOW/GPM
WITHOUT BOOST
GALLONS OF WATER PER MINUTE FLOWING THROUGH
VARIOUS LENGTHS AND SIZES OF HOSE WITH AND
WITHOUT PRESSURE ADDED BY BOOST PUMPER
4" HOSE
5" HOSE
500 ft.
1000 ft.
1500 ft.
500 ft.
1000 ft.
1500 ft.
MODE 1
NOMINAL HYDRANT
PRESSURE
60
780
550
450
1240
870
710
MODE 2
BOOST
PRESSURE ADDED
BY BOOST PUMPER
(TOTAL PRESSURE)
90
(150)
1240
870
710
1960
1380
1120
140
(200)
1430
1010
820
2240
1580
1290
NOTE: (1) Flow rates calculated assuming that 10 psi residual is remaining at the inlet to the attack pumper.
5.6 VALVE PRESSURE LOSS
OASIS HYDRANT ASSIST VALVE PRESSURE LOSS
0
10
20
30
40
50
60
0
500
1000
1500
2000
FLOW (GPM)
P
R
ESSU
R
E L
O
SS (
P
SI
)
SIDE PORT
FLOW
57 PSI at 2000 GPM
STRAIGHT THROUGH
FLOW
43 PSI at 2000 GPM
6.0 MAINTENANCE
This valve should be disconnected, cleaned and visually inspected inside and out at least quarterly for proper function per NFPA
1962 section 8.2, or as water quality and use may require. Moving parts such as handles, valve ball and couplings should be
checked for smooth and free operation. Seals shall be greased as needed with a silicone-based grease such as Dow Corning 112.
Any scrapes that expose bare aluminum should be cleaned and touched up with enamel paint such as Rust-Oleum.
In particular assure that:
There is no damage such as cracks or dents
•
There is no corrosion
•
The waterway is clear of obstructions
•
Replace any missing or damaged parts before returning to service. Any repaired device must be tested before being placed in
service.
CAUTION
Any alterations to the device and its markings could diminish safety and constitute a misuse
this product
