The shape of a pipe or fitting meaning off-center, not exactly circular in shape.
EFFECTIVE FILTER AREA
Permanent Medium Type: The effective filter area is the filter surface that is perpendicular to the flow direction. Cartridge Filter: The total effective filter area shall be the cartridge area that is exposed to the direct flow of water. This excludes cartridge ends, seals, supports and other areas where flow is impaired.
EFFLUENT
The output stream exiting the system, filter or other device - often the waste stream.
EJECTOR
A device consisting of a body, nozzle, and venturi tube that increases the pressure output of a jet pump. The nozzle increases the velocity of the water then the venturi tube converts the velocity to pressure.
ELECTROLYSIS
Decomposition of metal due to flow of electrical current.
ELEVATION
The vertical distance between the level where fluid enters a pipe and the level where it leaves. It must be added to the TOTAL DISCHARGE HEAD if the inlet is lower than the outlet and subtracted if the inlet is higher. As a rule of good installation practice, however, pipes should slope continuously upward from the inlet to the outlet to prevent entrapment of air.
EMPTY BED CONTACT TIME
A measurement of the duration of contact between water and the media through which it is flowing, typically used in reference to carbon beds.
ENDOTOXIN
Bacterial lipopolysaccharide, a substance released from the cell walls of gram-negative bacteria when the organism is broken down.
EQUILIBRIUM
The condition where the forces applied to an object are in balance.
EXPLOSION PROOF
A type of motor enclosure that will prevent sparks generated by the motor from reaching the atmosphere outside of the motor enclosure. As a general rule our company does not sell this kind of motor.