Oil Filtration

What is Oil Filtration?

Oil filtration is the method of removing contamination from oil, to protect and prolong the use of the machinery/equipment that is utilising the oil and to increase time that you can effectively use the oil.

The process of filtering oil is also often referred to as oil cleaning or oil cleansing.

How we can help

We specialise in oil filtration and have been supplying a wide variety of bespoke oil filtration products and services to all types of industries, throughout the world, for over 30 years.

Whether you are looking to hire or purchase oil filtration equipment to filter your own oil, or you would like us to do the job for you - at your place or ours - we have a large range of bespoke products and services to help. From our oil filtration units, to our on-site or off-site oil filtration services we're sure we can help you!

Our oil filtration rigs are produced and tested to the highest of standards and are built to order, specifically for your needs. If you cannot find the product or service you require, just get in touch and we'll create you a bespoke unit or point you in the right direction to fulfil your needs.

Key Oil Filtration Products and Services

Require help with your oil filtration project?

Our key Oil Filtration products and services are listed below.
If you require something bespoke, give us a call - we're happy to help.

Oil Filtration Rig Sales

Require an oil filtration rig to keep your oil clean? With our diverse range of products, there's one for you.

Sampling Equipment

Whether you need oil sampling pumps, carry case kits, tubing, sampling bottles or more, we have it all.

Storage Tanks & Storage Units

Looking for storage for your oil or fuel? Contact us to discuss our wide range of solutions.

Check out our oil filtration products or get in touch...

Our Products Get in Touch

Key Services

On-Site Oil & Fuel Filtration

Require us to come to you to assist with your on-site filtration needs? We have a wide range of products and services that can be tailored to your requirements.

Off-Site Oil & Fuel Filtration

Want us to do all the work for you? We can pick up your oil or fuel, analyse and filter it to your requirements and bring it you back, taking out all the hassle for you.

Oil Filtration Rig Hire

Wanting to perform a one off filtration of your oil or diesel without buying the equipment required, then just hire it from us and keep your costs down.

Bespoke Design & Installation

From concept to installation, we can design and create you a bespoke oil or diesel filtration system to meet your requirements.

Oil Sampling & Analysis

From a sample of your oil, we'll test the contamination levels, analyse the results and make recommendations for improvements.

Contamination Control Advice & Training

Learn how to reduce the contamination of your oils during day-to-day use. We can also provide training to your staff at your place or ours.

Spill Protection

Full range of Spill Protection products to ensure that you are compliant with Health & Safety Regulations and also to help you to aid the environment.

Site Surveys

FA-ST will carry out a complete site survey to give your company the most cost effective solution for your equipment.

Tank Integrity Testing

Our stringent testing procedures will check your oil tanks are not at risk of tank failure, oil contamination or leakage.

FA-ST Ltd is the appointed UK distributor for the Kleenoil range of UK manufactured products.

Kleenoil Products Get in Touch


Fluid contamination of oil is the overall number one cause of component failures.


Up to 75% of all system failures are related to surface degradation that's been caused by mechanical wear.


Water and particulate matter in hydraulic and lubrication systems are the leading cause of mechanical wear.


Component and equipment life is extended by up to 5 times its normal life by maintaining clean, dry oil.

Oil Filtration Tips

Jason's Tip

Where possible fit quick release couplings to your tank outlets. This makes it quick and easy to connect your filtration equipment when you come to filter your oil.

Andy's Tip

It's always best to filter new oil too before use. You can filter new oil in its original containers, before adding the oil to your machinery. This ensures good clean oil is being used.

Gary's Tip

For small volumes of oil consider draining the oil and storing it in a good clean container labelled with the oil's type. Re-fill machines with clean new oil and when the stored quantity is sufficient filter it, sample and analyse, then label the container for the oil to be re-used.

Peter's Tip

If it is known that there is excess water in your oil, try drying your new oil filter cartridges on a radiator for a couple of hours before using. This ensures that any moisture that may have entered the new cartridges during storage has been removed, which speeds up the water removal.

Craig's Tip

When filtering tanks above head height, try to lift the filter rig to be as close to the height of the tank as possible. This reduces the return line height and prevents the loss of back pressure, speeding up the flow of the oil.

Andy's Tip

Where your oil has high water content, change the filter cartridges after two hours of operation. This ensures you efficiently absorb the highest quantity of water. Fuel or oil with a water content of 2% or 20,000ppm in 100 litres equals 2 litres of water.

Gary's Tip

Consider using a steel tube extension (19mm bore) to the suction line so that it reaches the bottom of the tank.

Craig's Tip

Try to filter the oil when it is warm. The viscosity of warm oil is lower than cold oil, making it much easier to filter.

ISO 4406

It is vital that new oil is filtered to adhere to ISO 4406 cleanliness codes before it is introduced to the component or machine. Unfiltered new oil is one of the major sources of contaminants.

Common Problems

Oil contamination leads to accelerated abrasive wear, corrosion of metal surfaces, increased electrical conductivity, viscosity variance, loss of lubricity, fluid additive breakdown, bearing failure and more.

To get the best results from external filtration it really is quite simple, "the longer an oil filter rig can be operated for, the cleaner the oil will become". It's not always possible to have a filter rig in operation for as long as you would like, as time constraints are inevitable in getting machinery back into operation as soon as possible; however even a small amount of time spent on filtration will be of massive benefit.

Generally external filtration relies on the ‘kidney looping’ or ‘by pass filtration’ process, the recycling of oil within the same tank or container. If this is the case then the total volume of oil within the tank or system will have to pass through the filters 7 times to complete one full pass.

For the best results the suction line should be as close to the bottom of the tank as is possible with the return line at the top of the tank. If there is a drain port fitted on the tank then if it is possible connect the suction line to this point and return to the tank top this helps to provide circulation ensuring all the oil gets filtered.

Please note: If the system is pressurised during the machine operating procedure do not attempt to filter the oil. With these systems the machine must be stopped and the pressure released under the machine/manufacturers guidelines before any connection is made for filtration. With a normal un-pressurised system the machine can be run during filtration.