Benefits of Anti-Corrossion and Titanium Pumps

September 28, 2015

Pumps help move fluids and gasses in regulated and consistent flows under pressure. Their uses range from domestic and commercial (residential ponds, water, and sewer) to trade and industrial (submersibles, farming, petrochemicals). The kind of material the pump is made from as well as pump maintenance help determine the degree of its suction, flow, discharge, and power consumption performance, which may be improved using titanium pumps and anti-corrosion coatings.

Anti-Corrosion Pumps

Anti-corrosion pumps are necessary for:

• oil / gas operations,
• tanks and vessels,
• residential systems and appliances,
• agriculture,
• hydroelectric,
• thermal / nuclear, wind / wave power plants, and
• operations that utilize seawater cooling.

Self-priming, submersible, centrifugal, booster, sewage, water, electric, seawater, and internal combustion pumps must be anti-corrosive to deliver fluids at high pressure over time, and under heat, water, salt, high humidity, and other corrosive conditions.

Anti-Corrosion Pump Coatings

Rusty, corroded, and rough pump casings cause friction and the pump to work harder. As a result, anti-corrosive coatings increase a pump’s efficiency and life. Rust and corrosion build up over time and use. A pump’s performance and durability is increased when the pump and casings are coated. Voids are filled in and the smooth coating reduces head and flow friction, increasing the pump’s efficiency.

Non-porous barrier coatings, sacrificial coatings that corrodes in accord with the substrate, and thick form fluoropolymer coatings are designed to protect equipment in abrasive environments. The optimum anti-corrosion coating solution depends on the pump material. For example, applied ceramic precision-repair epoxy fills voids and protects against abrasion, corrosion, chemicals, and cavitation.

Titanium Pumps

Titanium is a preferred lightweight, strong, corrosive-resistant / non-corrosive material that has a high strength to density ratio. Overall, it is as strong as steel but comparably weighs less than half. Although it is a more expensive material, it is preferred for pumps which will be submerged, and utilized in ship and offshore applications, and industrial liquids. It is particularly suited to seawater applications.

These pumps are highly resistant to chlorine, oxidizing acids, and brine type substances. They require less servicing and maintenance. They are generally more cost-effective and durable. However, they are approximately twice the cost of that for a high grade steel pump.

Titanium pumps are particularly useful for:

• filtration / purification systems,
• drinking water systems,
• in the shipbuilding industry,
• in offshore drilling platforms, and
• in land-based seawater plants.

Titanium sublimation pumps (TSP) are used to improve pump efficiency. They are used with an ion or vacuum to increase pressures through the initial evaporation of titanium film onto the TSP shield.

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