Nova-Tech LMI Series AA-B-C-E-J-P Metering Pumps - Manual (Page 11)

11
4.2.1 Flooded Suction
The pump is mounted at the base of the storage tank. This instal-
lation is the most trouble-free , and is recommended for very low
outputs, solutions that gasify, and high-viscosity solutions. Since
the suction tubing is filled with solution, priming is accomplished
quickly and the chance of losing prime is reduced.
When pumping downhill or into low or no pressure system, a
back pressure/anti-syphon device should be installed to prevent
overpumping or syphoning.
Although popular for all solutions, LMI recommends flooded
suction installations for all high-viscosity fluid applications.
Injection
Check
Valve
LMI Pump
Pump
Stand
Polymer
(Polyelectrolyte)
Drum
Vent
CORRECT INCORRECT
LMI
35 Gallon
Solution
Tank
Tee
Avoid this type of false flooded suction.
Injection
Check Valve
CAUTION
!
CORRECT Barrel Cradle