Product Manual
This symbol indicates a potentially
hazardous situation which, if not
avoided, could result in death or seri-
ous injury.
CAUTION
This symbol indicates a potentially
hazardous situation which, if not
avoided, may result in injury or dam-
age to equipment.
WARNING
Page 3
Introduction:
Liquidynamics air operated pumps are used to pump engine oil, gear oil, hydraulic fluid, transmission fluid,
100% antifreeze and similar fluids used in the automobile and truck service industry.
Service and Warranty:
Liquidynamics oil pumps are covered by a limited two year warranty. For parts or service information, call your
local distributor or Liquidynamics at 800 894 3572. Please be ready to provide model number and serial
number or date of manufacture found on the “Liquidynamics” model number decal on each pump.
Reference the exploded parts drawings found in this manual for specific repair part numbers.
Technical Data:
temperature, pumping distance, plumbing size,
plumbing restrictions and desired flow rate.
Operating air pressure in excess of 120 PSI may
cause pump damage and/or reduce pump life.
Installation
1.) Drum Pumps
Models 20073T and 21073T are designed for use
with 16 gallon (120 lb) drums, models 20094,
21094 and 32095 are designed for use with 55
CAUTION
Part Number (w/o Bung Adapter) 32091 32095 20001T 20073T 20094T 21100T 21073T 21094T 21200 21300
Part Number (w/ Bung Adapter) 32091-S1 32095-S1 20001T-S2 20073T-S2 20094T-S2 21100T-S2 21073T-S2 21094T-S2 21200-S1 21300-S1
Ratio 1:1 1:1 3:1 3:1 3:1 5:1 5:1 5:1 5:1 5:1
Flow Rate @90PSI (GPM) 5 5555555812
Maximum Air Pressure (PSI) 120 120 120 120 120 120 120 120 120 120
Air Inlet Size 1/4” NPT 1/4” NPT 1/4” NPT 1/4” NPT 1/4” NPT 1/4” NPT 1/4” NPT 1/4” NPT 3/8” NPT 3/8” NPT
Fluid Inlet Size 1” NPT - 1” NPT - - 1” NPT - - 1” NPT 1
1
⁄
2” NPT
Fluid Outlet Size 1/2” NPTF 1/2” NPTF 1/2” NPTF 1/2” NPTF 1/2” NPTF 1/2” NPTF 1/2” NPTF 1/2” NPTF 3/4” NPTF 3/4” NPTF
Noise 79 db 79 db 79 db 79 db 79 db 79 db 79 db 79 db 79 db 79 db
Air Consumption (cfm) 12 12 12 12 12 12 12 12 18 21
Suction Tube Diameter 1.65” 1.65” 1.65” 1.65” 1.65” 1.65” 1.65” 1.65” 2” 2”
Suction Tube Length 11” 37” 11” 29” 37” 11” 29” 37” 15” 17”
Fits Drum Sizes (Gal.) Universal 55 Universal 16/30 55 Universal 16/30 55 Universal Universal
Shipping Weight, lbs. 11 14 10 13 15 12 14 16 19 21
Note: For longer pump life and efficiency, we recommend the use of dried air or an air filter. As with any pneumatic equipment, you can
expect longer trouble free operation with the use of clean, dry air. The use of an air drier, separator, or minimally an air filter, is advanta-
geous.
Refer to the catalog for Liquidynamics selection of air regulators, separators (filter) and dryers.
General
Liquidynamics oil pumps are
supplied completely assembled
and ready to use.
The use of an air filter and
regulator (figure 1) is
recommended to control
pumping rate and ensure a
clean air supply.
These pumps typically operate in the pressure range
of 60-120 PSI. Actual operating air pressure is
determined by the type of fluid to be pumped, fluid
Fig. 1