Technical Ceramics

Hard Wearing Nilcra® Zirconia in Pump Applications

Boost Pump Performance with Nilcra® Zirconia

Durability. Efficiency. Reliability. Across Industries.
Pumps are critical to fluid handling in oil & gas, mining, food processing, personal care, chemical manufacturing, and wastewater treatment. But abrasive media, corrosion, and wear can drastically reduce pump life and efficiency. That’s where Nilcra® Zirconia Wear rings, liners, open impellors and more, extend life drastically. 

Why Nilcra® Zirconia?

  • Extreme Wear Resistance: Solid ceramic construction ensures consistent wear rates
  • Corrosion Resistance: Performs in harsh chemical and saline environments
  • Thermal Compatibility: Coefficient of thermal expansion similar to steel
  • No Swelling: Unlike composites, Nilcra® Zirconia remains dimensionally stable
  • Food-Grade Certified: Safe for use in food and beverage processing environments
  • Easy Substitution: Fits existing metal part designs with minimal re-engineering

Industry Applications

Oil & Gas

As wells mature, sand content rises, turning crude into an abrasive slurry. Traditional metal components wear quickly, leading to frequent overhauls and costly downtime.
With Nilcra® Zirconia’s unique combination of hardness and toughness, wear rings, throttle bushes and linings can outlast all other components within multistage pumps preventing premature pump servicing.

Case Study – Bass Strait Operations

A refurbished BB3 8-stage Multistage centrifugal pump fitted with Nilcra® Zirconia components showed 4× longer life compared to stainless steel parts.
Over 50 pumps retrofitted Worldwide , saving on downtime maintaining pump efficiency and boosting production.

Mining & Slurry Handling

Highly abrasive slurries in nickel, copper, and mineral processing wear down pump internals rapidly.

Case Study – Nickel Operations

A pump handling hot ammonium carbonate slurry saw metal sleeves fail in 5 weeks. The best of Ceramic coatings lasted 8–10 weeks. After employing solid  Nilcra® Zirconia sleeves extended service life to 12 months - a 10× improvement.

Wastewater & Environmental

Composite materials like Ferobestos swell and degrade quickly in wet environments, causing friction and wear.

Case Study – Longford, Australia

Ferobestos sleeves lasted 1–2 months. After switching to Nilcra® Zirconia, lifespan increased to 4+ years, with significantly reduced maintenance.

Food & Beverage Processing

Acidic ingredients like tomatoes, citrus, and vinegar corrode stainless steel components in pumps. Nilcra® Zirconia is food-grade certified, chemically inert, and corrosion-resistant - ideal for hygienic applications.

Example Use Case

In tomato paste processing, steel components showed pitting and corrosion within months. Nilcra® Zirconia wear rings-maintained integrity and sealing gaps for over a year, reducing contamination risk and maintenance downtime.

Personal Care & Abrasive Fluids

Toothpaste, creams, and slurries often contain abrasive particles like silica, which wear down pump internals quickly.

Example Use Case

A toothpaste manufacturer replaced metal bushings with Nilcra® Zirconia in their transfer pumps. The result: 3× longer service life, improved sealing, and reduced energy consumption.

Contact our engineering and sales team to help you select the correct material for your application and refine your design to maximise your uptime and reduce valve repair costs.