OMA horizontal chemical pumps


  • Flow-rates up to 90 m³/h and heads up to 43 m w.c.
  • Savino Barbera proprietary seal.
  • With no metal parts in direct contact with liquids.
  • Plastic materials: PP, PVC, PVDF, PE-HD.
  • For transferring aggressive fluids and acidic industrial effluents.

OMA horizontal plastic pumps

Horizontal axis single-stage centrifugal pumps with pump shaft directly keyed on the motor shaft.

Q max m³/h H max m w.c. kW Mechanical seal Connections
single double thread hose adaptor backing ring
OMA20 5 8 0.25 yes no yes yes no
OMA30 14 16 0.55 – 1.1 yes yes yes yes yes
OMA40 23 18 2.2 yes yes yes yes yes
OMA50 38 24 2.2 – 3 yes yes yes yes yes
OMA70 54 25 4 yes yes no no yes
OMA80 81 41 5.5 – 9.2 yes yes no no yes
OMA100 90 43 11 yes yes no no yes

Savino Barbera also makes other special pumps outside this range of products: in fact, not all of the possible combinations of impellers and motors are included in this chart. Specifically, it is possible to install impellers of various geometries and motors with non-standard power, frequency and protection features. We invite you to contact our technical office for specific needs.

Performance curves

The range of OMA horizontal centrifugal pumps guarantees a work capacity with flow-rates from 1 to 90 m³/h
and heads up to 43 m w.c. (meters water column). The curves refer to tests with clean cold water (ISO9906). The
performance can vary based on the different characteristics of the pumped liquid. Non-metallic pumps with
different performance features are available upon request.

userblock32 Performance curves download

Corrosion resistant plastic materials

In our corrosion-proof pumps, all parts in direct contact with aggressive liquid are strictly made of corrosion resistant plastic material. Selecting the most suitable plastic material is indeed one of the main skills of Savino Barbera. Our choices have always been adaptable to the specific use that our industrial products are intended for.

  • Main plastic materials: PP, PVC, PVDF.
  • One-piece plastic impellers without any metal insert.
  • Shafts with heavy-wall plastic coating.
  • Sliding elements made of Ceramic or Silicon carbide.

The main materials include some highly corrosion resistant polymers: PP, PVC, PVDF.


PP (polypropylene)

PVC (polyvinyl chloride)

PVDF (polyvinylidene fluoride)

icona-corrosione More details on materials

Savino Barbera mechanical seal

The mechanical seal of our chemical pumps is a seal for rotating shafts exclusively designed by Savino Barbera.
It was conceived to be fully corrosion resistant and has the following features:

  • Very simple structure: only three elements.
  • Single mechanical seal, internally assembled and balanced.
  • Internal mounting for maximum cooling of its faces.
  • Sliding parts lubricated by the pumped liquid.
  • Self-cleaning due to the centrifugal force.
  • Ready-to-fit seal (no need for registrations).

icona-tenuta See the advantages of our mechanical seals


Savino Barbera horizontal pumps can be customized with optional equipment:

  • Open, closed and recessed impellers.
  • Flushed double mechanical seals.
  • Connections: backing rings, hose adaptors, male threads.
  • PVC baseplates in standard sizes or upon request.
  • Assembly on portable units.
  • With bearing bracket and flexible coupling.
  • Motors with choice of power, voltage, frequency and protection.




PP – PVDF engine driven
pump for sulfuric acid

PVDF horizontal pump
with PVC baseplate

Plastic horizontal pump

Suggested installation

Under flooded installation chart for plastic horizontal pumps made by Savino Barbera:


L1: max. liquid level
L2: min. liquid level

Occasional use and storage: what to do

  • Pump casing, in case of storage, occasional use or inactivity, must be kept completely full of liquid always
    to avoid the risk of seal rings sticking.
  • After a long period of inactivity and before restarting: extract the motor fan cover and verify, by manually
    rotating the motor shaft, that the pump shaft can smoothly turn. if not , the mechanical seal rings may be
    stuck and the seal should be unblocked.

Horizontal pumps photo gallery

Some images showing the product range of our horizontal chemical pumps:

PP and PVC pump for acid

OMA30 pump made of PP-PVC

PVC horizontal acid pumps

  PP and PVDF horizontal pumps                       PVDF pumps with seal                    OMA70A acid pump made of PVC

OMA horizontal pumps catalogues & manuals

In this section you can download the technical information on our horizontal chemical pumps for corrosive liquids. Please, contact our sales department in case you cannot find the proper pump for your application needs.

index Savino Barbera horizontal chemical pumps
index Performance curves of OMA horizontal pumps
index Maintenance and user manual for OMA horizontal pumps
index Savino Barbera mechanical seal

Savino Barbera srl

Via Torino 12
10032 Brandizzo, ITALY
P.IVA 00520820010
R.I.TO 272-1974-2166
REA 489443
Cap. soc. 48000€ i.v.

Tel +39 011 913.90.63

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