Emergency and other pumps
 Capacity: from 20 m3/h - 1400 m3/h Solids: from 8 mm - 76 mm Suction height: up to 7,5 m Head: up to 78 m Connection ports: from 40 mm - 300 mm |
| Industry | Civil engineering | Agriculture | Naval | Emergency | Other |
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Transfer: clean,
dirty, containing sand in suspension, muddy, neutral, alkaline, acidic liquids, low viscous petroleum products, solvents, even if dirty, milk of lime, caustic soda, washing, cooling, recirculation, smoke scrubbing. |
Drainage of excavations, canals or ponds
Ground water dewatering with drains Water supply from wells or canals Washing concrete castings and aggregate Recirculation of bentonite and drilling mud. |
Surface irrigation; liquid manure oxynegation; transfer and spraying liquid manure or fertilisers; distribution of liquid animal feed; transfer of must; washing. |
Loading and unloading; bilge pumping; washing, fire-fighting, stripping, sanitary duty and circulation.
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Drainage after flooding or terretial Emergency duty: temporary sewage pumping; fire fighting; recovery of dangerous liquids. |
Treatment: pumping polluted, hot or corrosive waste water containing sand, mud or solids in suspension; dosing neutralising liquids, pumping out settled sludge. |
Self priming principle
The air (yellow arrows) is drawn into pump due to the negative pressure created by the moving impeller and is emulsified with the liquid (blue arrows) contained in the pump casing. The air-liquid emulsion is forced into the priming chamber where the lighter air is separated and leaves through the discharge pipe; the heavier liquid drops back down into circulation. Once all of the air has been expelled from the suction pipe, the pump is primed and works like a normal centrifugal pump. The pump can also work with an air-liquid mixture. The non-return valve has a dual function: it prevents the suction pipe from emptying when the pump is off; in the event of accidental emptying of the suction pipe, this holds a sufficient amount of liquid tin the pump casing to prime the pump. The discharge pipe must be free to expel the air coming from the suction pipe
 List of electric engine units |
 List of diesel engine units |
Varisco J series pumps is available in various arrangements:
