EFI™ pumpsby EMM™ are centrifugal, rotary, single-stage, horizontal pumps with a spiral intake channel and separate bearing system.
The pumps are comprised of two main units, that is the bearing system with high capacity bearings applied attached to the base, and the flow system, the so-called wet component. The immobile parts of those two systems are connected with a fastening and centralising ring, while the centrifugal elements are set on a shared shaft.
The shaft can be sealed in the four following ways:
Gland with full sealing liquid flow
Gland with limited sealing liquid flow
FDS® dynamic sealing system
Mechanical sealing – front
The elements of the flow system are usually made of highly alloyed chromium cast iron (white cast iron) characterised by high hardness (approx. 63-65 HRc), very good abrasion and corrosion resistance, however because of a wide range of possible applications, pumps are manufactured in various material versions, depending on application requirements. For production we mainly use cast iron, carbon steel as well as austenitic alloys – acidproof.
The pumps’ design enables the adjustment of the clearance between the rotor’s front and the body.
The bearing system does not require additional cooling, as the bearings are smeared with grease or oil.
Technical data:
Flowrates up: to 1800 cu.m./hr.
Heads up: to 75 m
