Model 2620-Series
Model 2620-Series
SELF-PRIMING PUMPS
FEATURES
Body: Bronze
Impeller: Neoprene or Nitrile
Shaft: 316 Stainless Steel
Shaft Seal: Nitrile Lip Type
Bearings: Sealed Ball Bearings
Ports: 3/8" NPT(f) Internal
Weight: 2-3/4 lb (1.3 kg) Approx.
VARIATIONS AVAILABLE
MODEL NO. DESCRIPTION
2620-1101 Neoprene Impeller
2620-1103 Nitrile (oil resistant) Impeller
APPLICATIONS
MARINE: Engine Cooling, Pumping bilges,
Washdowns, Circulating water in bait tanks, Utility dock
side pump.
INDUSTRIAL: Circulating and transferring, Velocity-mix-
ing, Pumping machine tool coolants, Return spill,
Sump drainage, Chemicals, Pharmaceuticals, Soap,
Liquors, Ink, Dyes, Alcohol, Various acids, Tanning
liquors, Glycerine, Brine, etc.
OPERATING INSTRUCTIONS
1. INSTALLATION – Pump may be mounted in any
position. Intake and discharge ports are deter-
mined by the direction of shaft rotation (refer to
Dimensional Drawing). Before installing, turn the
pump shaft in the direction of the operating rota-
tion.
2. DRIVE – Belt or Direct with flexible coupling. If
pulley or coupling is a press fit on shaft, remove
end cover and impeller and support shaft at
impeller end while pressing drive on shaft.
Belt Drive – Overtight belt load will reduce pump
bearing life.
Direct Drive – Clearance should be left between
drive shaft and pump shaft when installing cou-
pling. Always mount and align pump and drive
shaft before tightening the coupling set screw.
3. SPEEDS – 100 RPM to the maximum shown in
the performance table. Consult the factory for
operation at speeds above those shown. For
longer pump life, operate at lowest possible
speeds.
4. SELF-PRIMING – Primes at low or high speeds.
For vertical lift of 10 feet (3.0mm), a minimum of
800 RPM is required. Pump will produce suction
lift of up to 22 feet (6.7m) when wetted. BE SURE
SUCTION LINES ARE AIRTIGHT OR PUMP WILL
NOT SELF-PRIME.
5. RUNNING DRY – Unit depends on liquid pumped
for lubrication. DO NOT RUN DRY for more than
30 seconds. Lack of liquid will damage the
impeller.
6. NOTICE – Do not pump light fraction petroleum
derivatives, solvents, thinners, highly concentrat-
ed or organic acids. Damage to pump may result.
Consult Jabsco Chemical Resistance Table (avail-
able upon request from Jabsco) for proper body
materials and impeller compounds. If corrosive
fluids are handled, pump life will be prolonged if
pump is flushed with water after each use or after
each work day.
7. PRESSURES – Consult Head Capacity Table for
recommended maximum for continuous opera-
tion. If pressures exceed those shown, consult the
factory.
8. TEMPERATURES
• Neoprene: 45° to 180°F (7° to 82°C)
• Nitrile: 50° to 180°F (10° to 82°C)
9. FREEZING WEATHER – Drain unit by loosening
end cover. The following anti-freeze compounds
can be used without any adverse effects to the
impeller: Atlas “Perma-guard”, Du Pont “Zerex”
and “Telar”, Dow Chemical “Dow-guard” and Olin
Mathison “Pyro Permanent”.
NOTICE – To avoid pump damage, do not use
petroleum based anti-freeze compounds or rust
inhibitors.
10. SPARE PARTS – To avoid costly shutdowns, keep
a JABSCO Service Kit on hand.
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