CHEMICAL PUMPS FOR CORROSIVE LIQUIDS

PA HORIZONTAL PUMPS

Self-priming pumps made of corrosion-resistant plastic material for chemicals

SELF-PRIMING PUMPS WITH MECHANICAL SEAL. FOR PUMPING AGGRESSIVE LIQUIDS, INDUSTRIAL FLUIDS, ACID SOLUTIONS AND CHEMICALS.

  • Corrosion-resistant chemical pumps.
  • For installation above the level of the liquid.
  • Maximum suction lift: 4 m.
  • Maximum flow rate: 280 l/min.
  • Maximum head: 15 m w.c.
  • Plastic construction materials: PP, PVC, PVDF.
  • With no metal parts in contact with aggressive liquids.
  • Mechanically sealed for chemical applications

TECHNICAL INFORMATION

Pump performance curves - PA self-priming 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. Particular attention should be paid to the vapour pressure, which could prevent the priming of the pump.

.

Q max l/min H max m w.c. kW Suction lift Materials Datasheet
PA20 60 5 0.25 - 0.37 1.5 m PP - PVC download pdf
PA30 160 14 1.1 - 1.5 3 m PP - PVC download pdf
PA40 280 16 1.5 - 2.2 4 m PP - PVC download pdf

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.

STRENGTHS

THREE SIZES

Made in three sizes, PA self-priming pumps satisfy various requirements: emptying underground tanks, occasional emergency pumping, draining wells or general maintenance operations.

PRIMING CHAMBER

PA pumps have self-priming capabilities of up to 4 metres. The only operation necessary is the filling of their priming chamber the first time they are operated. Self-priming pumps need fluid in the casing to get started.

Self-piming chemical pumps with non-metallic construction

MECHANICAL SEAL

The anti-acid performance of our chemical pumps also comprises the mechanical seal, which is completely insensitive to corrosion. Consisting of three elements, it requires no adjustment or regulation with screws.

LESS METAL, LESS CORROSION

PA self-priming pumps are made of corrosion-resistant plastic material (PP, PVC, PVDF). All wetted parts are insensitive to corrosion and are built with maintenance in mind, using simplified components which can always be easily removed.

STRENGTHS

THREE SIZES

Made in three sizes, PA self-priming pumps satisfy various requirements: emptying underground tanks, occasional emergency pumping, draining wells or general maintenance operations.

PRIMING CHAMBER

PA pumps have self-priming capabilities of up to 4 metres. The only operation necessary is the filling of their priming chamber the first time they are operated. Self-priming pumps need fluid in the casing to get started.

Self-piming chemical pumps with non-metallic construction

MECHANICAL SEAL

The anti-acid performance of our chemical pumps also comprises the mechanical seal, which is completely insensitive to corrosion. Consisting of three elements, it requires no adjustment or regulation with screws.

LESS METAL, LESS CORROSION

PA self-priming pumps are made of corrosion-resistant plastic material (PP, PVC, PVDF). All wetted parts are insensitive to corrosion and are built with maintenance in mind, using simplified components which can always be easily removed.

Self-priming centrifugal pump manufactured from PVC for chemical transfer

SUCTION LIFT INSTALLATIONS

Pumps with a suction lift, to be chosen when it is not possible to use conventional horizontal pumps installed below the surface of the liquid (under-flooded installation) or vertical pumps with immersed column. Priming (with the casing initially filled) is automatic and without the need for a foot valve. Self-priming pumps cannot be used with dense, viscous or hot liquids with low vapour pressure (such as hydrochloric acid).

OPTIONS THAT MAKE A DIFFERENCE

Savino Barbera self-priming pumps can be mounted on trolley

TROLLEY-MOUNTED PUMPS

Savino Barbera self-priming pumps can be mounted on trolleys. Transformed into practical portable units, they can be easily used for quick operations, emergency operations or occasional jobs (like filling and emptying tankers or emptying tanks in places far away from pipes or other fixed installations). The transport trolley is a powder-painted steel structure with a handle and with rubber and polypropylene wheels, to ensure silent movement and prevent damage to the floor.

Option with auxiliary priming chamber for higher flow rates

WITH PRIMING CHAMBER

Conventional horizontal close-coupled centrifugal pumps of the OMA series, when equipped with simple auxiliary single-chamber priming tanks (cylindrical), can recreate the operating conditions of PA self-priming pumps. With this special configuration (known as the SP Series), Savino Barbera chemical pumps can reach a maximum negative suction of 5 metres while guaranteeing higher flow rates than traditional PA self-priming pumps.

Self-priming plastic pump for acidic waters with sulfuric acid and nitric acid

WARNINGS FOR USE

The use of self-priming pumps requires particular attention. By way of example, the delivery pipe must descend towards the pump, while the suction pipe must be as short as possible and have an inclination such as to avoid fluid stagnation or air bubbles. Moreover, their suction capacity is altered by unsupported piping, cut-off valves or non-return valves, tight curves and pipes with smaller diameters than the suction and delivery nozzles.

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