AS vertical centrifugal pumps

Single-stage vertical centrifugal pumps, suitable for transfer, recycling and distributing corrosive liquids. The AS-series pumps are recommended for installation in cisterns, tanks or wells with variable head. The manufacturing technologies, the materials employed and the hydraulic design adopted permit the vertical AS pumps to satisfy plant specifications for chemical products (including those with solids). Hydraulics are optimized using open, closed and recessed impellers, and impellers with different speeds of rotation in accordance with the constraints imposed by the plants, the nature of the liquids or the working processes.

Characteristics

Materials: PP, PVC, PVDF, PE-HD.
Up to 3 meters long, depending upon the tank depth.
Suitable dimensioning of shafts, support columns and motor supports.
Standard sized PVC support flanges and bases or customized in accordance with design.
Nozzles with hose adaptor threaded or flanged.
Thickly coated cantilever shaft, fit directly onto the motor shaft. Free of bearing bracket or intermediate bearings, it is guided by a pair of filled PTFE, ceramic or SiC wear bushings, and flushed by the liquid being pumped.
Pumps longer than 1950 mm: a variation is constructed that ensures exceptional resistance to vibrations and that anticipates over-sizing of the shaft and the motor support, in addition to an FRP reinforcing structure.

**AS vertical centrifugal pumps Technical data**
Model	Q max	H max	kW	Shaft bearing	Length mm

Model	m³/h	m w.c.	kW	Shaft bearing	Min	Max
AS20	5	8	0.25	yes	250	1000
AS30	12	14	0.55 - 1.1	yes	320	3000
AS40	18	18	1.5	yes	320	3000
AS50	35	28	2.2 - 3	yes	465	3000
AS70	50	25	4	yes	1000	3000
AS80	60	35	5.5 - 9.2	yes	1000	3000
AS100	85	45	11	yes	1000	3000

IMPORTANT
Plastic pumps do not allow dry operation.

Performance

AS 20 40

AS 70 100