ENCORE
®
700 METERING PUMP
Table 2.1 - Pressure/Temperature Ratings for Suction and Discharge Tubing
Maximum Working Pressure (psi) at
HEAD
TUBE SIZE
MATERIAL
60°F
73°F
100°F
120°F
NOTE: Tubing connection is available on 1-3/8" and 2" heads only.
WARNING: TO AVOID POSSIBLE SEVERE PERSONAL INJURY WHEN
HAZARDOUS CHEMICALS ARE PUMPED AND/OR ELEVATED PRES-
SURE/TEMPERATURES ARE ENCOUNTERED, USE RIGID PIPE.
Installation
The Typical Installation drawings (Dwgs. 440.400.110.010, .020, .030,
and .040) and the associated wiring diagram (Dwg. 440.400.130.010) for
the various pump configurations are located at the end of this section.
NOTE: Some chemicals (such as sodium hypochlorite) emit gas and
could cause "air binding." Follow installation Dwg. 440.400.110.050
and consult publication TA1055-A for additional tips.
Avoid operating problems by preventing the following:
•
Unnecessary restrictions in piping
•
Thin-walled hose, which may collapse due to a small cross-sectional
area during suction stroke, thereby causing both a high pressure drop
and velocity
•
Difficult to vent bends in the line, where air may be trapped, impair-
ing the accuracy of feed rate
If a storage container is used, the suction line should be connected above
the container's bottom to avoid any deposits on the bottom that can enter
the suction line. Such deposits may damage the pump valves and impair
the function of the pump.
If the liquid to be pumped contains undissolved particles, install an ad-
equately dimensioned strainer (preferably one size larger than the pipe
diameter) in the suction line.
WT.440.400.001.UA.IM.1012
18
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