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Green_Line_Logo Rovatti 'Cataphoresis' Electrochemical Protective Coating
Cataphoresis
Cataphoresis is an electrochemicial coating process for metallic surfaces widely used in the automative industry owing to its penetration and long lasting life, either as priming coat or final painting.

Cataphoresis treatment is proper where a high protection against weather conditions, alkali and diluted acids is requested.

The Demand
Cast iron parts are safely used in clean and non-aggressive waters but they can be subject to corrosion where salt, alkali or diluted acid concentrations are present.

Furthermore, every melting process produces uneven surfaces thus limiting the pumps efficiency.

The Rovatti Solution
Rovatti electrochemical protective coating improves corrosion resistance, improving quality of the surfaces in contact with pumped water ,to benefit hydraulic efficiency.

This process is characterized by adhesion forces significantly higher than normal painting processes.  5% Salty Mist test at 35C (ASTM B117) has recorded more than 500 hours resistance.

Test Room test report a 2-3% hydraulic efficiency increase.

The combination of cast iron impellers with Rovatti electrochemical protective coating, stainless steel shaft, chromium plated brass bushes and impeller locking by standardised keys, allows easy pump rotor maintenance.

bushes impellers
"Europa Series

Pumps in the Europa series have cast iron cataphoresis treated impellers as standard.

Black Series

In the Black series, the impellers are again cast iron cataphoresis treated.

Also all parts in contact with the pumped liquid are cataphoresis treated.  Other specifications include:

  • AISI 304 stainless steel diffusers
  • Bronze wear rings
  • Chromed stainless steel bushes
  • Stainless steel shafts and keys

A

B

C

wear_rings

Diffuser_Rings

Impellers

Wear rings
Journal bearings

Diffuser rings
Pump body
Bushes

Impellers
Pump body
Shells
Inlet support

BRONZE

STAINLESS STEEL

CAST IRON WITH ROVATTI ELECTROCHEMICAL PROTECTIVE COATING

europa_Pump

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