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SELF·PRIMING PUMPS
DESIGN FEATURES
Models
12850·SERIES
12860·SERIES
D
esc
ription
Neoprene Impeller
Nitrile Impeller
Neoprenelmpeller
Nitrile Impeller
Neoprene
or
Nitrile
Phenolic
Pla
stic
Model
12850-0001
12850-0003
12860
-
0001
12860
-
0003
Shaft:
316
Stai
nl
ess Steel
Shaft Seal:
Carbon-Ceramic
Face
T
ype,
Nitrile
Be
armgs:
Carbon
Ports
:
1
2850-Series-
WeIght:
Model 128S0-Series-
(
1
,7
kg)
Model 12860-Series-
Ibs
(2,5
kg)
Body
:
Impeller:
NO
T
E: Carbon/Carpenter
spare
parI.
20
seal avai
labl
e
as a
APPLICATIONS
Designed asa low cost pump
for
:
transfers, circulation, spill
returns,
filtrati
on and
filling
line use. Easily handles pure
solu
t
ions,
foaming
liquids,
emulsions,
suspended solids, gels
and ferments.
Because
the plas
t
ic pump is resistant to
corrosion and metallic contamination, it is
widely used
for
pumping photo chemicals, plating compounds,
lab
solutions,
pharmaceuticals,
cosmetics, weak acids
, alkalie
s,
liquid
fe
rtilizers, insec
t
icides, dyes, dete
r
gen
t
s,
waxes
and many
more.
See the Jabsco C
h
emical Resistance
T
able (available upon
request
from In Jabsco). It has been prepared
t
o
help
you
selecl the most suitab
l
e
impeller and pump
OPERATING INSTRUCTIONS
1. INSTALLATION
-
Pump may be
mounted in
any position
.
The
rotation of
the pump shaft determines the location
of
lhe pump's
i
ntake
and
discharge
ports.
Refer 10
dimen·
sional drawing.
Before
starting,
turn the pump shaft
in
the
direction
of the operating
rotation.
2.
DRIVE
-
or
Direct
With
flexible
coupling.
NOTICE Do
not press a pulley or couplmg on the shaft
WIthout supponmgthe shaft
1
0
prevent
its movement into
the
impeller bore.
BELT DRIVE
belt load Will reduce
pump
life.
DIRECT DRIVE
-
Clearance shou
ld
be
left
between drive
shaft and pump shaft when installing coupling. Always
mOunt pump
and
drive shaft before
tightening
the
coupling
set screw.
3
.
SPEeDS
-
100 RPM to the maximum shown in the
performance lable. For longer pump life,
possible
speeds.
4, SE
LF
-PRIMI
N
G- Primes
at
low orhigh speeds. Forvert
i
cal
dry
suction
l
ift o
f 1
0
a mmimum of 800 RP
M
is
r
equ
ir
ed. Pump
wi
ll
produce
suction
lifts up to
22
feet
when welted
.
BE SURE SUC
TI
O
N
LI
NE
S ARE AIRT!GHT
OR PUMP
WILL
NOT SELF-PRIME.
5. RUNN
I
NG
DRY
- Unit depends on
liq
uid
pumped for
lubrication. DO NOT RUN
DRY FOR MORE
THAN 30
SECONDS. Lack of liquid will damage
the
impeller and
other components.
6.
CAUT
ION
-
Do not pump petroleum derivatives
,
solvents,
thinners,
highly
concentrated
or
orga
ni
c
acids. If
corrosive
fluids
are
h
a
ndled
,
pump life will be prolonged if flushed
w
ith
wa
ter
after
eac
h use
or
after each work day
.
Consult
Jab
sco
Chemical Resistance Table in
Industri
al
Catalog
.
For further information
contact
factory
.
7.
PRESSURES
-
Forcontinuousoperation, pressure should
nOI exceed 20 PSI for 12850-Series and 30 PSI for
8. TEMPERATURES
-
Recommended temperature range with
neoprene
180
'
F
(Tt082
C
j,
and
with
nitrile
impeller
to
to
9. SPARE PARTS
-
A Jabsco Service Kit
should
be kept
on
hand to maintain all but the most badly worn pumps.
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