Guides

WASP isn’t the only company advising that modern diesel has what can best be described as a ‘shelf life’. Even the fuel companies supplying the diesel agree. BP has issued a document detailing best practice for the long term storage of diesel.

EN590 – The B7 Introduction 1st Jan 2011 What is B7 and why should I be concerned? On Jan 1st 2011, EN590 changed. Now, all gas oil will have a lower sulfur content and a 7% biodiesel blend. What does it mean?  The technical explanation from the fuels quality directive – Directive 2009/30/EC, Article 4 […]

We always recommend full priming of the unit before operation and after servicing, even though some systems have safe priming capabilities. When the system contains air and the filters and input pipe work are not completely full of fuel, the filters will need to be bled of air and system primed. The system does not automatically purge air, so it is the engineer’s responsibility to do so as described in later sections.

Water contamination is natural in biodiesel. It contains water when it’s manufactured and it attracts more water while it’s stored. Biodiesel is hygroscopic; meaning it attracts water. This makes it more prone to water contamination than the petrochemical diesel we used before 2011. Diesel fuel now contains up to 7% biodiesel; while this is great for the environment it’s not always good for organisations that store fuel.

Both the grey and blue filters will isolate water collected from fuel. They each have sensors which trigger an alert when they reach a certain level and require the water to be drained. This can however be done regularly before the alert is triggered to avoid the machine stopping.

At WASP, ensuring you have the correct machine for the application and operating environment is something we are always mindful of and we will start any enquiry with gathering some standard information: Fuel Tank Size Fuel Volume Speed of cleaning required Fuel Tank Quantity (multi-tank cleaning arrangement) Fuel Type (diesel/HVO/others) BMS/Specifications/Communications Power Options Polisher Location […]

Diesel suffers from three main types of contamination: water contamination (left), microbial growth (a.k.a. the ‘diesel bug’) (centre), solid particulate contamination (right).

In mid 2015, diesel was reclassified. As it has a flashpoint of 55 deg C and above, whereas the lower limit for hazardous material has been moved from 55 deg C to 60 deg C, diesel must now be considered to be a hazardous material. This means clients may wish to consider ATEX in future installations.

Sizing a fuel polishing system can be done in a number of ways; firstly WASP are always happy to help, so please contact us for any assistance you need.

Diesel bug is a generic name for the microbial contamination that grows in diesel fuel.