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VILLINA LLC
Russia
We offer bowls and impellers for centrifugal pumps made of: steel 20H13L, steel 12H18N9TL, steel 12H18N12M3TL according to GOST 977-88.
Request for a quoteVILLINA LLC
Russia
One of the priority areas in the production of Villina pumping equipment was initially the development of a specialized line of pumps designed for pumping harsh chemical fluids. At present, we are ready to offer you Villina high-end lined centrifugal canned pumps having design life of 20 years for pumping mineral and organic acids, alkalis, salts, oxides and anhydrides, including chlorides, as well as alcohols, esters, aromatic hydrocarbons, ketones, aldehydes and other media which contain various concentrations of mordant substances. Modern technology makes rapid progress, and in place of pumps used earlier for transit of corrosive fluids made of chemically resistant yet expensive steels such as KhN65МV, N70MFV, 06KhN28MDT, lined pumps are widely used now. In accordance with para. 51 of the Safety Rules of chemically hazardous production facilities, corrosion-resistant non-metallic coatings (polyethylene, fluoroplastic) can be used to protect equipment and pipelines
Request for a quoteVILLINA LLC
Russia
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
Request for a quoteVILLINA LLC
Russia
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. Advantages: the fluid can be taken in at a point lower than the axis of the inlet suction pipe without using a pre-installed vacuum pump. - 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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