1-4 B/T
®
RAPID-LOAD
®
Peristaltic Pumps and Drive Operating Manual Cole-Parmer
Section 1
Introduction
The maximum recommended rotor speed is 321 rpm. The pump rotor can
turn either clockwise or counterclockwise. When turning clockwise (FWD)
the top connection is for suction and the bottom connection is for
discharge. The 321 rpm speed is obtained from the standard 1725 rpm
fractional horsepower motor through the 5.45:1 gear reduction. Faster
speeds will increase flow, but will also considerably shorten average tubing
life. (Manufacturer cannot be responsible for pump performance when
operated at speeds higher than 321 rpm.)
WARNING: To reduce the risk of injury, use hose clamps on all
tubing connections.
Silicone or C-FLEX
®
tubing, because of their highly elastic natures, can
expand very quickly if back-pressure is present and could create leakage at
the fittings if not securely retained. It is this same elastic nature, however,
that makes them such excellent materials for this peristaltic type pump.
NORPRENE
®
tubing yields longer life, especially under pressure. Refer to
Table 1 for tubing recommendations. Do not attempt to use other
materials in lieu of these, as pump performance could be severely
compromised with possible damage to the pump.
ROTOR
ASSEMBLY
DOOR ASSEMBLY
ROLLER
RETAINER
ASSEMBLY
OCCLUSION BED
Figure 1-2. RAPID-LOAD Pump and Drive
REFLECTIVE
ELEMENT
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