911-404 Rev. J 3/2003
Page: 2 of 2
A. RO feed water pressure from the pump is dependent upon restrictions within a particular RO filtration unit.
Nominal booster pump system pressure will be between 75–110 psi.
[5–7.5 bar].
B. Re-check all water connections for leaks after the RO unit has completely filled the accumulator and the booster
pump shuts off.
C. In the event of a power failure, the drinking water system will operate on normal city water pressure. A lower
quantity and quality of water may be produced during this period. Once the power is restored, drain the reservoir
and allow the system to produce new supply of water.
D. The pump design permits brief periods of dry operation; however, extended dry operation will decrease its
performance/longevity.
E. Refer to SHURflo Service Bulletin
#
1052 for further information regarding RO Booster Pump System, maintenance,
troubleshooting, and repair.
TECHNICAL SPECIFICATIONS
SERIES
85-120
85-121
80-120
80-121
70-121
Feed Water Flow Rate
(pump output)
10-18
GPH
[38-68
LPH
]
@
75-110 psi [5-7.5 bar]
3-10
GPH
[11-38
LPH
]
@
75-110 psi [5-7.5 bar]
5-60
GPH
[19-23
LPH
]
@
70 psi. [5-7.5] bar
Voltage
(Transformer)
115
VAC
/24
VDC
50
VA
, 60Hz
220
VAC
/24
VDC
50
VA
, 50/60Hz
115
VAC
/24
VDC
20
VA
, 60Hz
or
220
VAC
/24
VDC
20
VA
, 60Hz
Inlet Water
Regulator
Regulates large variations in inlet pressure to
12–15psi. [0.8–1 bar] dynamic
Not affected
by inlet pressure
Fittings
John Guest
®
Quick Connect fittings Inlet & Outlet
(
1
/
4
" or
3
/
8
" available)
1
/
4
"
John Guest
®
Tank Switch
(Full Tank Shut-off)
Controls pump / switch opens (pump off) at 40 ± 2 psi.[2.7 ± 0.13 bar],
closes (pump on) at 25 ± 5 psi [1.7 ± 0.27 bar].
Pump Design
Three chamber diaphragm pump with 80 psi. [5.4 bar] internal bypass
With replaceable fuse
With internal, non-replaceable fuse.
When used with RO filtration units that produce up to 35 GPD
[132 LPD].
Dependent upon RO restrictions and membrane
SHURflo RO BOOSTER PUMP SYSTEM LIMITED WARRANTY
SHURflo warrants the 85-120 & 85-121 series to be free of defects in material and workmanship under normal use,
for one (1) year, with proof of purchase. This limited warranty will not exceed eighteen (18) months from the date
of manufacture, in any event.
SHURflo warrants the 70-121, 80-120 & 80-121 series to be free of defects in material and workmanship under
normal use, for two (2) years, with proof of purchase. This limited warranty will not exceed thirty (30) months from
the date of manufacture, in any event.
The limited warranty will not apply to Booster Pump Systems that were improperly installed, misapplied, damaged,
altered, or incompatible with components not manufactured by SHURflo.
All SHURflo Booster Pumps Systems should be returned to freight prepaid to the Authorized SHURflo Distributor
where originally purchased. SHURflo shall not be liable for freight damage incurred during shipping, package
returns carefully.
For complete Water Products Limited Warranty details consult Service Bulletin
#
1053
ISO Certified Facility
R
a WICOR Company
SHURflo reserves the right to update specifications, prices, or make substitutions.
SHURflo
P: 1-800-942-1153
F: 1-800-942-0081
