IPU launches the new Diesel Defence fuel polishing system

Why do we need fuel polishing?

Since 2011, the diesel we buy has been a blend of petrochemical and biodiesel. It is now widely accepted that diesel will only remain in a useable condition for 6 to 12 months. To get the most out of your fuel IPU has launched the Diesel Defence DD50 and DD100 fuel polishing system. Diesel Defence provides long-term protection for your fuel by eradicating contaminants before they reach the day tank or generator.

It will remove:
Microbial growth (a.k.a. the diesel bug)
Particulate contaminants such as dirt, soot and rust.

Improved filtration

The new Diesel Defence DD50 and DD100 offer superior multi-stage filtration and fuel is maintained to surpass ISO 4406’s 18/16/13 standard of cleanliness and EN590’s 200ppm level of water content.

The advanced water absorbing filters in the new models remove virtually all emulsified and free water present in the tank preventing both injector damage and microbial growth. The multi-stage fuel filtration system on the Diesel Defence DD50 and DD100 removes solid and microbial contamination to the 1 micron level.


At IPU, we understand that simplicity is the key in most things. The Diesel Defence DD50 and DD100 are user friendly – you don’t need to be an expert or a specially trained operator to use them. The Diesel Defence unit works as a ‘fit and forget’ system – simply set it up once and it will run unassisted, month after month.

IPU Solutions

Standard models in the range are the DD50 and the DD100.

The DD50 offers a flow rate of 50 litres per minute and is ideal for tanks holding between 7,500 and 40,000 litres of fuel. The DD100 has a flow rate of 100 litres per minute and is recommended for tanks holding between 40,000 and 75,000 litres of fuel.

IPU have aimed to simplify the buying process. The models in our standard range will suit the overwhelming majority of applications. Should the standard model need to be altered, IPU has the ability to adapt to your specific needs, applications or country.

To find out more information on how Diesel Defence can come to your aid, please visit our Diesel Defence or to speak to one of our fuel experts please call us on +44 (0) 121 511 0470.

Alternatively you can download the DD50 datasheet using this link or the DD100 datasheet here.

Everything you need to know about fuel conditioning, in your pocket

IPU Fuel Conditioning Handbook 2015-05

IPU’s Fuel Conditioning Handbook covers everything you need to know about maintaining the quality of your fuel and the reliability of the equipment it serves:

  • Relevant legislation
  • What is clean, dry fuel and why does it matter?
  • What’s different about biodiesel?
  • How can biodiesel be contaminated?
  • How can you prevent contamination?

Complete this short form to get your fuel cleaning handbook: