The Gngc-s, Gngc-s-m, Ncg-s Series Self-priming Centrifugal Pumps With Magnetic
HORIZONTAL PUMPS
Description
Centrifugal pumps have well-known advantages such as uniform pumping without surges, the ability to create high pressures at low pump rate in multi-stage designs, long service life and others. However, operation of centrifugal pumps requires building positive pressure (pressure boosting) upstream of the inlet suction pipe for the following reasons: to fill the pump body with the pumped fluid in order to avoid a "dry start" to prevent cavitation during pump operation. Classic methods for creating pressure boosting before centrifugal pumps can be: installation of a tank from which the fluid is pumped, several meters above the axis of the pump shaft and placing the pump in the draw-off sump; inclusion of an additional vacuum pump into the process, which is capable of building the desired pressure boosting of several metres. HOW IS THE PROBLEM OF CREATING A PRESSURE BOOSTING IN MODERN SELF-PRIMING CENTRIFUGAL PUMPS SOLVED? Villina company offers you Villina self-priming GNGC series
- Pumps
- Centrifugal pumps
- Pumps Priming
- Couplings Pumps
Product characteristics
- Purpose
- transit of corrosive, toxic, explosive and flammable fluids at insufficient suction pressure
- Pump rate ranges
- 0.8 to 450 m3/h
- Head ranges
- 3 to 132 m
- Self-priming height (depth)
- up to 6 metres
- Seal type
- magnetic coupling according to API 685 or tandem mechanical seal according to API 682
- Climatic version
- for moderate and for moderate and cold climate
- Temperature of the pumped fluid
- for GNGC-S, GNGC-S-M up to plus 350°С, for NCG-S up to plus 450°С
- Shaft speed
- 1,450 or 2,900 rpm
- Structural design
- ОН-2 single-stage back pull-out pump according to API 610 or a single block
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