WHY WOULD YOU WANT TO REPLACE COVERS?

• Health & Safety Issues – i.e. Steel Covers
• Covers Fouling In The Frame – Difficult To Remove
• Deformation Of The Cover Itself
• Replacement for Watertight Covers – Different/New Specification
• Replacement of Broken Covers and Frames

The Problem

In common with any organic fluid, fuels are susceptible to natural deterioration. Oxidation, water, and microbes all contribute to reduced fuel quality and the formation of tank sludge. Higher water content exacerbates the problem. These unwanted by-products clog filters, disrupting operations and impacting profitability while tanks are de-commissioned for cleaning. If used, contaminated fuel can corrode injectors, pumps and tanks leading to incomplete combustion, carbon build up, smoke, loss of power and even engine failure.

The Solution

The Mobile Tank Cleaning or MTC combined tank cleaning and fuel polishing provides a very cost-effective, operationally-convenient solution. Our proprietary MTC effectively removes harmful sludge, water and other contaminants from storage tanks and extends the useful life of the fuel.

It preserves the integrity of stored fuel, improves filterability, reverses the process of tank sludge build up, removes water, preserves tank cleanliness and maintains peak engine performance.

The ‘Fuel Dialysis’ system circulates and cleans fuel by pumping it from the tank, processing it through the cleaning unit and then putting it back into the tank. The fine filters in the unit remove sludge, water and other impurities in a continuous process until all contaminants are removed. Then the fuel is sampled, tested and declared clean and fit for purpose.

Fuel Dialysis actually cleans the tank at the same time, using a fuel catalyst to dissolve the heavy sludge, making it more filterable. A fresh dose of catalyst then helps prevent future fungal growth and bacterial build up and regular sampling is carried out to ascertain when a re-dose is required.

FAST, ACCURATE LEAK DETECTION

Leighton O’Brien offers the most advanced tank and line testing technology available. There is no leak scenario that our test method cannot detect.

Continually developing our leak detection technology means Leighton O’Brien has the world’s only US EPAcertified precision dry line test in just 3 minutes, the fastest and most accurate wet line test in 17.5 minutes, and a precision tank test capable of testing in as little as one hour with minimal disruption to sales.

Historically tank and line testing has been used to meet regulatory requirements or because of a
problem on site. This approach is changing. The vast majority of Leighton O’Brien integrity testing is now conducted by our customers as a preventative measure to stop problems before they happen.

THE LEIGHTON O’BRIEN ADVANTAGE:

• Our proprietary tank test technology can detect pressure changes of 1 Pascal, enabling detection of the smallest liquid movement
• We can detect a level change of 1/1000mm to identify any loss of integrity in your system
• We can test your entire system in any configuration on a single technology platform
• We can test tanks at any fill level, including empty tanks, with the same high degree of accuracy
• Testing just tanks is not enough – 90% of new sites we test have a leak in the product lines
• Our test equipment is portable so we can mobilise to test in virtually any location worldwide
• We DO NOT rely on site technicians to make the final call on results. Our engineers can identify leak detection patterns in the data to address problems that go beyond a simple pass or fail

Why mass and not vacuum based testing?

• Leighton O’Brien choose to conduct 99% of its work using a mass-based underfill test – simply because this method avoids many of the issues that plague vacuum tests and allows clear identification of all leaks for quick repair.
• With vacuum testing you cannot ‘hear’ a leak no matter how sensitive your equipment if the leak has been sealed by the vacuum force. Eighty-five per cent of ullage leaks will occur in manways, and by exerting a vacuum force of 5PSI (as is standard in some vacuum acoustic tests), a force equivalent to placing a 6.4 ton weight on the manway is exerted during the test. This force effectively seals any leaks causing a FALSE pass only return when the vacuum is released.
• Traditionally vacuum tests don’t diagnose the issue; rather you just receive a pass or fail result. With Leighton O’Brien you can be advised if liquid is entering or leaving the tank and at what rate, allowing you to accurately assess the next steps.