Electric pumps of single-level EVN type are designed to pump lip-ballast waters contaminated with petroleum products and mechanical impurities with particles of up to 2 mm and a temperature of up to 50 ° C. EVN electronses have a self-consuming capacity, have the same pressure 50m and differ depending on the feed of 2.8 and 5 m3/hour.
General information
Electric pumps of the EVN type belong to volumetric type pumps. The working body of the pump consists of motionless
rubber clip and steel screw rotating in it.
The inner surface of the rubber clip is a two -stroke screw surface with a twice as large step than the step of the screw. When the screw rotates between it and the clip, the free cavities are formed, into which the working fluid is absorbed and moved along the axis of the screw to the cavity of the discharge, while a vacuum is created in the suction side.
On the absorption and support buildings, holes are provided for joining the manometer and manovacummeter fittings necessary to control the operation of the electric pump.
Materials of the main details
The suction body is absorbed,
The hull of the pump is supported - Cast iron account
Clip - rubber gr. MBM;
Val cardan, screw - stainless steel. 12x18n9t
Seal node - stuffing AFT 8x8
Technical characteristics
|
Name |
EVN 3/5 EVN 5/5 |
|
SUMM M3/H |
2.8 5.0 |
|
Pressure, MPa Self -consumption height, m The speed of rotation is synchronous, rpm Power, kW Useful action coefficient, % Type of installed ED Genus current Voltage, in |
0.5 0.5 6 6 1000 1500 1.6 2.0 0.4 0.6 Adm100l6 adm100s4 variable 220.380 220.380 |
