CHEMICAL PUMPS FOR CORROSIVE LIQUIDS

Sodium hypochlorite PVC vertical cantilever pump

BS VERTICAL PUMPS

CORROSION-RESITANT PLASTIC PUMPS WITHOUT BUSHINGS. FOR PUMPING SLIGHTLY ABRASIVE LIQUIDS, LIQUIDS CONTAINING SUSPENDED SOLIDS OR FLUIDS THAT TEND TO CRYSTALLIZE OR FORM SCALE.

Corrosion-resistant chemical pumps.
Maximum flow rate: 55 m³/h.
Maximum head: 30 m w.c.
Thermoplastic construction materials: PP, PVC, PVDF.
With no metal parts in contact with chemical liquids.
Made in four standard lengths: 400, 550, 700, 900 mm.
Cantilever shaft with no bushings or bearings (cantilever pumps).

TECHNICAL INFORMATION

Pump performance curves - BS chemical pumps

Standard curves: 50 Hz (60 Hz curves available on request). The curves refer to tests with cold, clean water and a density of 1000 kg/m³ (ISO9906). Hydraulic performance may change in relation to changes in the characteristics of the liquid to be pumped.

	Q max m³/h	H max m w.c.	kW	rpm 50 Hz	length
BS20A	5	6	0.25 - 0.37	2900	400 mm
BS30A	10	10	0.55 - 0.75	2900	550 mm
BS30B	10	10	1.1 - 1.5	2900	550 mm
BS40A	15	18	2.2	2900	550 mm
BS50A	20	18	2.2 - 3	2900	700 mm
BS50B	24	18	3 - 4	2900	700 mm
BS70A	37	25	5.5 - 7.5	2900	900 mm
BS80A	55	31	7.5 - 9.5	2900	900 mm

Savino Barbera also manufactures custom pumps outside this production range: the table does not indicate all the possible combinations of impellers and motors. It is possible to install various types of impeller and motors with non-standard powers, voltages, frequencies and protections. Please contact our technical department for any special requirements.

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PUMP BROCHURE

HYDRAULIC COVERAGE

OVERALL DIMENSIONS

SECTIONAL DRAWINGS

OPERATING MANUALS

INQUIRY DATA-SHEET

STRENGTHS

LESS METAL, LESS CORROSION

BS vertical pumps are made of corrosion-resistant thermoplastic material (PP, PVC, PVDF). All wetted parts are insensitive to corrosion and consist of just a few elements, which can be easily removed over time.

ANTI-ACID PERFORMANCE

The anti-acid performance of our pumps also comprises all nuts and bolts and pump shafts, metallic elements protected from corrosion by plastic coatings (PP, PVC, PVDF). Savino Barbera design eliminates the contact of metal with aggressive liquids.

CANTILEVER PUMPS

BS series chemical pumps have no intermediate supports or wear bushings: their cantilevered shafts are coupled directly to the motor.

Plastic vertical cantilever pump with no immersed bearings

FOUR LENGTHS

BS vertical pumps have no intermediate supports or end bushings: their cantilevered shafts are made in 4 fixed sizes (400, 550, 700, 900 mm), with the possibility to add extra suction pipes.

FOR SOLIDS-LANDING LIQUIDS

Due to the complete absence of sliding bushings, BS pumps are suitable for handling liquids containing abrasive particles, sludge, fluids containing suspensions or with a tendency to form scale.

PLASTIC IMPELLERS

Double-acting impellers made of thermoplastic material with no metal inserts: the impellers of Savino Barbera pumps cannot be attacked by acids, not even on the inside.

LESS METAL, LESS CORROSION

BS vertical pumps are made of corrosion-resistant thermoplastic material (PP, PVC, PVDF). All wetted parts are insensitive to corrosion and consist of just a few elements, which can be easily removed over time.

ANTI-ACID PERFORMANCE

The anti-acid performance of our pumps also comprises all nuts and bolts and pump shafts, metallic elements protected from corrosion by plastic coatings (PP, PVC, PVDF). Savino Barbera design eliminates the contact of metal with aggressive liquids.

CANTILEVER PUMPS

BS series chemical pumps have no intermediate supports or wear bushings: their cantilevered shafts are coupled directly to the motor.

FOUR LENGTHS

BS vertical pumps have no intermediate supports or end bushings: their cantilevered shafts are made in 4 fixed sizes (400, 550, 700, 900 mm), with the possibility to add extra suction pipes.

FOR SOLIDS-LANDING LIQUIDS

Due to the complete absence of sliding bushings, BS pumps are suitable for handling liquids containing abrasive particles, sludge, fluids containing suspensions or with a tendency to form scale.

PLASTIC IMPELLERS

Double-acting impellers made of thermoplastic material with no metal inserts: the impellers of Savino Barbera pumps cannot be attacked by acids, not even on the inside.

CHEMICAL APPLICATIONS

Chemical and petrochemical systems
Electroplating baths
Pickling lines, galvanisation
Metal wire treatment
Fume and odour control
Scrubbers and washing towers
Seawater treatment
Demineralisation plants

Acid water neutralisation
Purification plants
Recovery of precious metals
Production of batteries
Regeneration units
Production of fertilisers
Industrial logistics of fluids
Wastewater pumping

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Chemical pump in polypropylene for abrasive liquids or acidic applications

THERMOPLASTIC MATERIALS

Centrifugal pump impeller made of PP for corrosive liquids

PP (POLYPROPYLENE)

The most widely used thermoplastic polymer for the construction of anti-acid centrifugal pumps. It offers good resistance to most acid and alkaline solutions and can be used, depending on the concentration of the aggressive liquids, at temperatures of up to 80°C.0°C.

Centrifugal pump impeller made of PVC for NaClO, acids, bases, saline solutions

PVC (POLYVINYL CHLORIDE)

Plastic material with an excellent resistance to acids, bases, saline solutions and organic compounds. PVC is generally used for pumping sodium hypochlorite (NaClO). At low temperatures it becomes fragile. The operating temperature is between 40 and 60°C.

Centrifugal pump impeller made of PVDF for highly concentrated acids

PVDF (POLYVINYLDENFLUORIDE)

Fluorinated thermoplastic with exceptional resistance to corrosion and temperature. PVDF covers a wide range of uses but is ideal for highly concentrated acids. It is not suitable for certain inorganic bases, such as caustic soda. Operating temperature: max. 100°C

PP pumps with bracket and coupling, for sulfuric acid with traces of lead oxide (car batteries)

ABRASION AND CRYSTALLISATION

BS pumps are cantilever pumps characterised by the absence of sliding parts (bushings or intermediate bearings); a completely cantilevered pump-shaft coupled directly to the motor makes these pumps perfect for liquids containing particles or abrasive sludge, with a very high risk of becoming worn. BS pumps are suitable for tanks in which the level of liquid is constant. They can be equipped with an extra suction pipe to extend the immersion length.