Fluid Excellence | OPC® Testing and Thermal Fluid Performance

At TFS, fluid excellence goes beyond traditional pass-or-fail testing

Fluid excellence is achieved when thermal fluid performance is fully understood, validated against real operating conditions, and actively managed over time.

We focus on how degradation products actually affect heat transfer, safety, and system reliability at the point of use, not just what a laboratory result says in isolation.

A Full Health Check for Your Thermal Fluid

Standard thermal fluid tests provide useful indicators, but on their own they do not explain how a fluid behaves inside a working system.

Our OPC® Testing and Rank forms a complete picture of fluid condition. It assesses how degradation products influence operating temperature limits, pressure behaviour, and safe, reliable heat delivery.

This creates a true health check for the thermal fluid, based on how it performs in your system, not against generic benchmarks.

OPC® Rank – Performance You Can Act On

The OPC® Rank translates complex fluid behaviour into a clear, system-specific performance indicator. By identifying whether a fluid is stable, conditionally unstable, unstable, or no longer fit for use, OPC® Rank supports informed decisions about operation, recovery, or intervention. It removes guesswork and replaces assumptions with evidence.

Real Fluid Simulations, Not Assumptions

Fluid excellence requires understanding root cause, not symptoms. Through real fluid simulations, we analyse specific degradation products and how they impact individual system operating conditions. This allows us to identify why degradation is occurring and how best to recover performance, as well as demonstrating to our customers what is possible before we come to site with a recovery strategy.

Our analysis covers

Acid generation and removal

Light-end (low boiler) formation and online removal

Carbon solids, sludge, and deposit formation

Moisture ingress and removal, including high-temperature and sub-zero systems

Contamination identification, separation, and removal

Ferrous removal

From Data to Controlled Performance

Fluid excellence is not about replacing oil when limits are reached, it is about extending fluid lifespan and improving system efficiencies and managing performance proactively. TFS helps clients extend fluid life, improve heat transfer efficiency, and reduce operational risk.

When fluid performance is validated and controlled, operators can focus on process performance with confidence.

Need expert support with your thermal fluid system?

Speak to our expert team to discuss how we support your sector and how we can help  improve safety, performance, and reliability.

+44 (0)1298 815862

office@thermalfluidsolutions.com