Case Studies

Oil contamination problem solved by design and supply of filter unit


Our customer is a large manufacturing and assembly facility based in the UK.
They supply components to the automotive sector therefore high quality and on-time deliveries are an integral part of their business.

The Problem

Our client were experiencing problems with oil contamination due to water and various other particles in their systems.
Oil contamination can cause dramatic failure to a hydraulic system and is a cause of 90% of all machine faults and downtime.
Our client were concerned that the continued problem could cause a major disruption in their time critical deliveries leading to them requesting HOS to assist with the problem.

The Solution

The HOS technical team visited our customer to inspect the contamination problem and assess the possible impact.
We designed and built a 3-micron absolute filter unit with a high dirt-holding capacity and a cellulose-based filter insert.
The filter is designed to remove particles, retain oil degradation products such as oxidation resin, sludge and varnish and absorbs/dissolves water from oil.
The filter unit was delivered and installed preventing further oil contamination issues for our customer.


By designing, manufacturing and installing the filter unit, we successfully found a solution to the oil contamination problem for our customer.
This ensured they could continue their supply without fear of machine downtime, a delay in supply or any reduction in quality of their products.

“The problem of oil contamination can cause serious issues for a company, it was great to work on this project and help our client continue their supply of critical parts to their automotive client.”
Paul Taylor – HOS Director

What Our Clients Say

We have worked with HOS for many years from small subsea cable ploughs to large J lay pipe installation towers, they are always willing to go above and beyond to meet our requirements & are experienced, friendly and willing to do what they can to help.

Lead Engineer – Multi National Maritime Solutions Provider

HOS offer a prompt supply service, along with technical assistance, quality is always at a high standard, we have developed an extremely good working relationship which we hope to continue to build on for future requirements.

Production Manager – National Engineering Company

We would highly recommend HOS, we receive excellent customer service, quick delivery and great product quality.

Administration & Marketing Manager – Engineering Solutions Provider

96 x 4SH hose assemblies – measured, tagged, pressure tested, flushed, installed and certified within 7-day window, Wow!

Ship Superintendent – Oil Rig Support Vessel

Thanks again for all your work on the recent project, great turn-a-round in less than a week for two complete marine hydraulic hose kits which were manufactured, pressure tested and flushed, complete with full documentation pack.

Head of Construction - International Subsea Engineering Company