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Self-Priming Pumps Model 2620-Series
FEATURES
Body:
Impeller:
Shaft:
Shaft Seal:
Bearings:
Ports:
Weight:
VARIATIONS AVAILABLE
Model No.
2620-1101
Neoprene Impeller
2620-1103
Nitrile (oil resistant) Impeller
APPLICATIONS & OPERATING INSTRUCTIONS
MARINE – Engine cooling, Pumping bilges, Circulating water in
bait tanks, Utility dock side pump.
INDUSTRIAL – Circulating and transferring, Velocity mixing,
Pumping machine tool coolants, Return spill, Sump drainage,
Chemicals, Pharmaceuticals, Soap, Liquors, Ink, Dyes, Alcohol,
Various acids, Tanning liquors, Glycerine, Brine, etc.
1. INSTALLATION – Pump may be mounted in any position.
Intake and discharge ports are determined by the direction of
shaft rotation (refer to Dimensional Drawing). Before installing,
turn the pump shaft in the direction of the operating rotation.
2. DRIVE – Belt or Direct with flexible coupling.
Belt Drive – Overtight belt load will reduce pump bearing life.
WARNING: Injury hazard.
Exposed pulleys and belts can cause injury.
Install shield around pulleys and belts.
Stay clear while machinery is operating.
Direct Drive – Clearance should be left between drive shaft
and pump shaft when installing coupling. Always mount and
align pump and drive shaft before tightening the coupling
set screw.
3. SPEEDS – 500 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 (3.3m), 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.
Bronze
Neoprene or Nitrile
316 Stainless Steel
Nitrile Lip Type
Sealed Ball Bearings
3/8" NPTF
2-3/4 lb (1.3 kg) approx.
Description
6. NOTICE – Do not pump light fraction petroleum derivatives,
solvents, thinners, highly concentrated or organic acids. Dam-
age to pump may result. Consult Jabsco Chemical Resistance
Table, (available 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.
WARNING: Explosion hazard.
Do not use pump for pumping gasoline or
other flammable liquids with flash point
below 100°F (37.8°C). Doing so may result in explosion which
could cause personal injury, death or property damage.
7. PRESSURES – Consult Head Capacity Table for recom-
mended maximum for continuous operation. If pressures
exceed those shown, consult the factory.
8. TEMPERATURES
Neoprene 45°-180° F (7°-82° C),
Nitrile 50°-180° F (10°-82° C).
9. FREEZING WEATHER – Drain unit by loosening end
cover. The following anti-freeze compounds can be used with-
out 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 shut downs, keep a
JABSCO Service Kit on hand.
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