Food grade cleaning and flushing thermal fluid

Food grade thermal fluid for cleaning and flushing

To ensure that a heat transfer fluid provides good service for many years, manufacturers should follow recommended operation parameters and carry out routine testing and analysis. If manufacturers follow these operating conditions, the fluid will provide many years of good service.

Over its lifetime, a heat transfer fluid degrades by either the process of thermal cracking or oxidation. When fluid degradation occurs, the system may become fouled with debris or harmful contaminants, such as old or oxidised residual fluids, carbon deposits on system internals, loose debris, water and volatile light ends.

 

These contaminants can reduce the thermal efficiency of the system, reduce the life of the thermal fluid and lead to the formation of hot spots on heater coils. These hot spots can result in coil failure and fire.

 

When a fluid needs replacing, engineers must drain, flush and clean the system. This will ensure that a new fluid works efficiently as soon as it enters the system, maximising the fluid life and system performance.

Circulating debris in the system can erode the pipework, accelerate the oxidation of the fluid and decrease its thermal efficiency.

 

Over time, debris will also act like a grinding paste on pump seals and impellers, eventually causing leaks. As soon as there is a leak you are also in breach of (ATEX) legislation regarding explosive atmospheres because leaks increase the risk of fire. If any signs of a leak appear you must act immediately.

Typically, up to 25 per cent of a systems’ fluid volume can remain after draining. This is because of the physical attributes of some parts of the system such as horizontal heater coils and dead legs in pipes. So, simply draining the fluid may not remove all contaminants. If contaminants remain in the system, it can compromise the new fluid and reduce the efficiency of the system.

 

Cleaning and flushing the system thoroughly will help to maintain a safer environment, optimise the performance of the new fluid once it is introduced to the system and reduce maintenance costs and downtime over time.

If the heat transfer system and fluid cannot maintain required operating temperatures, the fluid may have degraded and may need replacing. Engineers might notice this if they are frequently turning up the temperature, but the flow rates have dropped off.

 

You can understand the current condition of  fluid by taking a representative sample and send it for fluid analysis. Thermal fluid sample data may show high results for TAN / acidity (oxidation) and carbon residue. The test results may also indicate likely levels of internal system fouling along with viscosity and Particulate Quantity results.

Pharmaceutical, beverage and food processing are highly regulated industries and businesses must protect consumers from any potential hazardous contaminants. For example, if manufacturers use a standard heat transfer fluid and there is incidental contact with the product, an entire batch must be scrapped.

 

Manufacturers should use food grade fluids that are NSF HT1 certified food-grade fluid as any incidental contact with a product will not result in contamination.

Food and beverage manufacturers should also reduce the risk of contamination of consumable products by using food grade cleaning fluid.

 

Globaltherm® C1 FG dual action cleaning and flushing fluid is specially formulated for use in heat transfer systems at pharmaceutical, food and drink processing plants in fact, in any application where thermal fluid can potentially come into contact with a product manufactured for human ingestion. This fluid scours away harmful contaminants, such as old oxidised residual fluids, carbon deposits, loose debris, water and volatile light ends.

 

Globaltherm® C1 FG effectively displaces and flushes out waste in one process, leaving a clean and safe operating system that is ready to accept a new charge of heat transfer fluid.

We recommend cleaning and flushing a brand new system before the preliminary fill, to remove any contaminants that occurred because of environmental exposure during construction. Residual materials, such as water, soil, welding slag and finely divided ferrous material may have settled post construction.

 

These contaminants can accelerate the thermal degradation process of a new fluid and can damage other parts of the system, including pumps and seals. It’s essential to clean any system, new or existing, before a new fluid is added.

Our heat transfer system drain, flush and refill service can help return your heat transfer system to maximum efficiency. Our engineers can help by thoroughly draining the system and flushing out any carbon deposits. Our team can also help to remove and dispose of waste in accordance with legislation.

Implementing a condition based thermal fluid lifecycle maintenance programme is the best way to extend thermal fluid lifespan and maintain an efficient system. As part of our Thermocare® programme, for example, our experts will work with you to improve accuracy when monitoring fluid condition, organise maintenance schedules and train staff at the facility.

Have you got more questions about food grade cleaning and flushing thermal fluid?

If you want more personalised advice about food grade cleaning and flushing thermal fluid, call us on +44 (0)1785 760 555. You can also complete our online form which can be found on our contact page.

Application

  • Maintain a safer system environment
  • Maximise performance and service life of new fluid
  • Lower maintenance and operating costs
  • Reduce downtime

 

 

Globaltherm® C1 FG dual action cleaning and flushing fluid is specially formulated for use in heat transfer systems at pharmaceutical, food and drink processing plants in fact, in any application where thermal fluid can potentially come into contact with a product manufactured for human ingestion. This fluid scours away harmful contaminants, such as old oxidised residual fluids, carbon deposits, loose debris, water and volatile light ends.

Globaltherm® C1 FG effectively displaces and flushes out waste in one process, leaving a clean and safe operating system that is ready to accept a new charge of heat transfer fluid.

Where can I find engineering support for cleaning a heat transfer system?

Our heat transfer system drain, flush and refill service can help return your heat transfer system to maximum efficiency. Our engineers can help by thoroughly draining the system and flushing out any carbon deposits. Our team can also help to remove and dispose of waste in accordance with legislation.

  • Globaltherm® C1 FG system cleaner and flushing fluid is intended for use in a closed plant
  • Globaltherm® C1 FG system cleaner and flushing fluid is recommended for the cleaning and flushing of heat transfer systems using heat transfer fluids in a temperature range from -20°C up to a maximum bulk temperature of 326°C. The maximum recommended film temperature is 343°C.
  • Globaltherm® C1 FG system cleaner and flushing fluid is recommended for heat transfer systems operating under mild temperature conditions, where low temperature fluidity is required to ensure the correct flow rate during start-up.
  • Globaltherm® C1 FG system cleaner and flushing fluid has low toxicity and is suitable for use in heat transfer systems of feed, food, and drink plants.