Installation
© 2017 EMP, Inc. 9
Installation
Environment
Environment cleanliness is crucial to pump life. The WP29 and WP32 are certified with an IP67 rating but debris
collection in the weep pocket can lead to premature seal failure. Shielding may be required to ensure debris
does not enter the weep hole. If you have any questions regarding your installation contact EMP.
CAUTION: Blocked weep holes will cause pump damage due to blocked vent allowing fluid to
accumulate inside the pump.
Orientation
Each pump part number has a specified and approved orientation. If the pump is not properly installed several
failure modes could potentially result. Orientation is noted on the component label.
EMP has found the most robust installations make use of horizontal orientation pumps. For new applications,
EMP is encouraging the use of horizontal orientation pumps. EMP pumps must be attached to a vertical or
horizontal mount. Pumps labeled with orientation “up” arrows must be installed with the arrow pointing upward,
no other orientation is acceptable.
Vertical Pump Orientation Label Horizontal Pump Orientation Label
Pumps that do not have an orientation label must still be installed in a specific orientation. Specific part numbers
may require a mounting in a specific orientation or support both “Vertical” and “Horizontal” orientations.
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