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What we need to spec up your hydraulic filter requirements.

The Filter Guys

What we need to spec up your hydraulic filter requirements.

When looking to identify a filter housing for your specific problem we need to know a little bit about what you are trying to achieve and where in your hydraulic circuit you need to fit it. To do this we require a few key pieces of information to ensure correct fit and operation for you. That being:

Port Sizes. What size pipe-work are you fitting the housing into? In many cases this is a BSP measurement.

Operating Pressure. Is the filter operating as a return line, tank top return, pressure or suction filter, or is it simply an in-tank suction strainer?

Flow rate. What is the flow of the hydraulic oil in litres per minute?

Micron. It is important to get the micron rating correct to ensure that you are protecting delicate parts of your hydraulic system further along the flow route from damaging wear particles.

With this information we can then source and supply the correct filter unit. Contact us on 01902 491118 with your hydraulic filter enquiries or contact us via our website Online Enquiry Form.

We can also offer a range of replacement filter elements and housing indicators to help keep you informed when your filters require changing.

Hydraulic Filtration Systems and accessories.

Donaldson develops, manufactures and markets a full line of hydraulic filters for the protection of machinery and components in hundreds of applications on heavy duty mobile equipment. When you need high, medium or low pressure filters, filter housings, filter heads, replacement cartridges, spin-ons or hydraulic accessories, turn to Sterling Filtration, authorised distributors of Donaldson filters. We also offer a broad line of replacement filter elements.

Donaldson heavy duty high pressure filters sit behind pumps and other prime movers to protect critical hydraulic components such as cylinders, motors and valves. All contain our Synteq ® synthetic filter media, specially developed by Donaldson for high efficiency liquid filtration. Working pressures range from 140 to 420 bar and static pressures from 310 to 830 bar.

Donaldson Duramax ®, well known as the highest rated medium pressure filters available, are most often used in return line positions. As spin-ons, they are particularly well-suited for the duplex circuits. Donaldson Synteq ® and cellulose media are available. Duramax working pressures range from 25 to 70 bar and static pressures from 55 to 140 bar.

Low pressure filters are the most commonly used type of filters in hydraulic circuits, used most often as return line filters in applications with working pressures up to 10 bar and static pressure up to 20 bar.

An expanded line of accessories for hydraulic lines and reservoirs is also available. Finish off your hydraulic circuit with filter service indicators, pressure gauges, test point assemblies, valves, flanges, reservoir level gauges, sight glasses, a variety of tank and filter breathers, caps vents, plugs, strainers, diffusers, magnets and more.

Donaldson is proud to offer a broad selection of hydraulic replacement cartridges and spin-ons to the aftermarket via its distributors. Choose from our many different filter media to find exactly the right filter to help you meet the cleanliness requirements for your hydraulic system.

Don’t Retighten a Lube or Oil Filter Once it has Been Installed.

The Filter Guys

To avoid cross-threading DO NOT OVER TIGHTEN OR RETIGHTEN a filter. Follow These Proper Steps for Installation of Engine Lube Spin-on Filters

The spin-on engine lube filter is a commonly serviced component on your vehicle. To insure normal oil filter service life and to prevent oil leakage or possible internal engine damage, the following procedure should be followed when replacing spin-on engine lube filters.

Before Installation:

  • Unscrew and remove the old filter.
  • Remove the old filter gasket if still attached to the base.
  • Wipe the filter mounting base or head with a clean cloth.

To Install a Spin-on Lube Filter:

1. If manufacturer recommends, fill new filter with oil on the dirty side. Do not pour the oil down the clean oil centre tube.

2. Apply a thin film of clean motor oil to the new filter gasket. Do not use grease.

3. To avoid cross-threading, line up the filter threads to the mounting base/head carefully. Screw the new filter on until the gasket contacts the base.

4. Follow the instructions on the filter for final tightening torque specification. DO NOT OVER TIGHTEN.

5. Check the gasket of the new filter to be sure it is properly seated in the groove.

Note that not all filters require the use of tools for changing.

After Installation:

6. Be sure the oil reaches the full level on the dipstick.

7. Start engine and check for leaks around the oil filter and drain plug. Correct the source of leaks if any are observed.

8. Shut the engine off and recheck the oil level. Add oil if needed.

Always dispose of old oil and used filters responsibly.

Watch Out for Old Compression Gaskets.

The Filter Guys

Watch Out for Old Compression Gaskets. When changing any filter that has a gasket – use caution as old gaskets may stick.

A compression seal is a means of preventing migration of liquids, gases or solid contaminates across a joint or opening in an assembly or housing. A seal not only prevents the escape of fluid from inside and foreign material from entering the system from outside, but it must provide for easy installation and removal. A new gasket is critical for proper filter function.

Remember…

  • Remove used gaskets and clean the sealing area thoroughly
  • Always use a new gasket with a replacement filter
  • Over-tightening the filter may damage the head
  • Dispose of used filters properly

The Purpose of an anti drain back valve.

The Filter Guys

What is the Purpose of an anti drain back valve?

Modern engines are engineered to an extremely delicate manufacture and need to avoid any kind of wear and tear caused by starting and operating them. Oil is essential to lubricate moving parts to avoid wear particles being created which can cause problems and is also necessary to carry such particles back to the sump or to the oil filter.

Many modern oil filter canisters have inbuilt anti drain back valves which serve two important functions. The first is: if the canister is mounted side-on or at a slight angle. It helps avoid any air that may be in the system getting trapped in filters mounted in such a way. By not allowing the oil to drain back to the sump air cannot be drawn into the system. Trapped air can cause an ‘air lock’ effecting the filters operation. Also any trapped air can also be pushed through the system causing moments of ‘dry wear.’ Dry wear is when moving parts rub against each other without oil present, this is how particles can be introduced into the system and damage can be caused such as seizing.

The second function is simply to stop the oil from completely draining from the engine when it’s not running. This means that from the moment that you start your engine it is lubricated which helps prevent a cold start causing dry wear and tear as previously mentioned.

It is important that if the OEM filters do contain an anti drain back valve that you use the correct aftermarket product. At Sterling Filtration we have an extensive cross referencing service to make sure that you get a specification-correct alternative rather than simply a will fit option.

Goods and services that we offer.

The Filter Guys

Goods and services that we offer

Sterling Filtration offers a total filtration service whatever your requirements. We offer competitive prices and ongoing support to help you maintain your equipment and machinery. Engine filters for industrial and heavy machinery, agricultural machinery, heavy plant, power generators, construction equipment, mining equipment, large trucks and transporters.

  • Oil Filters (Cartridges, spin on canisters)
  • Air Filters
  • Fuel Filters (Cartridge, spin on canisters, inline)
  • Coolant Filters
  • Fuel-Water Separators
  • Fuel housings

Also we can offer hydraulic filters and housings:

  • Tank top breathers,
  • Suction filters,
  • Pressure filters inline,
  • Return line in line
  • Tank top return filters
  • Hydraulic Oil Testing,
  • Pressure differential Indicators,
  • Level gauges.

We can also offer:

  • Air intake housings including filter elements,
  • Raincaps & air pre-cleaners,
  • Air intake ducting, plastic seals/clamps/mounting bands/elbows (standard and reducing)
  • Exhaust silencers (standard and bespoke)
  • Metal exhaust pipe work/seals/clamps and mounting bands/elbows (standard and reducing)
  • Rubber charge hoses
  • Cardboard air panels
  • Metal panel filters
  • Filter bags
  • Various Filter media (cut to size or in rolls)
  • Basket strainers
  • Oil wetted air cleaners
  • Diesel Fuel Additive
  • Draper tools – filter wrenches & straps, socket sets.
  • Water housings and String Wound Cartridges.
  • A constantly updated cross referencing service.

Mann & Hummel Centrifuges/Oil Filters

The Filter Guys

MANN+HUMMEL centrifuges clean oil by generating centrifugal force 2,000 times greater than gravity. It is this force that separates solid contaminant from the oil. This technology has been proven to remove contaminant down to a sub-micron size, which is advantageous to both engine producers and users.

The Benefits:

• Cleaner oil

• Extension of oil life

• Lengthens service intervals

• Reduces engine wear

• Enhances long-term preventative maintenance

• Reduces maintenance costs

• Cuts waste disposal costs

• Reduces application down time

• Maximises in-service time for vehicle/engines/machine

MANN+HUMMEL centrifugal oil cleaners are internationally recognised in providing superior bypass filtration for the removal of contaminant from the lubricating oil of Diesel engines. The technology can also be successfully used for gearboxes, hydraulics and other industrial fluids.

MANN+HUMMEL provide its centrifuge technology to the following market sectors:

• Trucks

• Buses

• Marine

• Power Generation

• Mining Machinery

• Locomotives

• Construction

• Agriculture

• Military

• Industrial Fluids

• Reduces total cost of ownership

• Helps ensure clean combustion and fuel efficiency

• Supports engine technology for the reduction of exhaust emissions (e.g. exhaust gas recirculation)

• Fast return on investment

Full flow filters are designed to process all the oil used to lubricate the moving parts of the engine. However, the need to maintain a high flow and limit pressure drop across the filtration media restricts the ability to filter out sub-micron particles. This job is taken over by the centrifugal oil cleaner in the bypass. The MANN+HUMMEL centrifugal oil cleaner processes approximately 10 % of the oil flow provided by the engine pump before returning it directly to the engine sump. The removal of particles by centrifugal force is based on their relative density and therefore there is no restriction on contaminant size.

If you require more information or a competitive quote on these items please call Sterling Filtration Ltd on 01902 491118.

Micron Rating. What are they and why is it important?

The Filter Guys

What is a Micron?

A micron is a measurement of size. It is one millionth of a metre (1/1000000m) or a thousandth of a millimetre (1/1000mm). In filtration, a micron rating is a rating of the media’s capacity to stop dirt (it is not an efficiency rating). The micron rating will be nominal or absolute.

A nominal micron rating means that a media may be explained as 10 micron but that is a mean average, it probably varies between 5 and 15 micron over the surface of the media itself; this often applies to cellulose media which is a natural product. Engine oil and fuel filters are often nominally rated.

An absolute micron rating means that the media has a uniformed surface and will ‘do what it says on the tin.’ A 10 micron absolute filter will not allow particles of 10.1 micron or bigger through at all. Absolute filters are man made products, such as glass fibre, and are manufactured to an extremely high specification. Hydraulic filters are often absolute rated (but not necessarily for all hydraulic applications).

Why is it important?

In filtration the micron rating of the element is very important to guarantee its correct operation. The wrong type of media can mean more dirt gets through the filter than you want and this can cause wear and tear and even complete breakdowns of your engines and hydraulic equipment.

Take a lubrication system on your engine. Oil is pumped between the moving parts of the engine, this oil contains particles, if the oil isn’t filtered before being sent into the engine then wear and tear will occur. The space between moving parts may only be 30 or 40 microns. If oil contains particles of that size then dirt is going to jam and consequently build up between moving parts. Over many hours (or years) of operation with inadequate filtration this build up of dirt will cause the moving parts to jam which will cause catastrophic failure of an engine leading to expensive downtime and repair costs.

Of course, over time filters will clog with dirt too but they are easily sourced from Sterling Filtration Ltd and replaced. They hold the damaging particles so the engine doesn’t have to. A filter may cost ten, twenty, fifty, one hundred pounds and sometimes even more, but compared to the cost of downtime of a machine and the stripping and rebuilding of an engine they are easily the most cost effective way of keeping your engines and machinery running properly all of the time. See your operators manual for service intervals.

Light Commercial Vehicles.

The Filter Guys

Many businesses wouldn’t be able to operate successfully if they hadn’t got a well maintained commercial vehicle or fleet of vehicles. In the UK the bulk of the volume of traffic on our roads, day and night, is made up of light commercial vehicles and large haulage trucks. The motorways of the UK act like arteries allowing the transportation of everything from food and clothes to medicines and luxury items. If these vehicles are not kept in tip-top condition they can be hit by break downs, effecting deliveries and business, and causing tailbacks for everyone else.

Sterling Filtration, despite not being a motor factor, can offer air, oil and fuel filters for most light commercial vehicles. We aren’t large stockist of these parts but can often get what you need in a day or two, and at an extremely affordable price. You may find a cost saving in using aftermarket filters over going to the OEM and often the OE filter is manufactured by one of our supplier partners so what you are getting is exactly the same.

We hold listings for vehicles including: Citroen (C15, C25, Berlingo, Dispatch, Jumper, Nemo, Relay), Ford (Transit, Transit Connect, Tourneo, Tourneo Connect, Ranger, P100, Fiesta, Escort, Courier), Mercedes (Sprinter, Vaneo, Viano, Vario, Vito), Land Rover (Defender, Discovery, Freelander, Ranger Rover), Peugeot (Bipper, Bopper, Expert, Partner), Renault (Clio van, Extra, Kangoo, Master, Trafic), Suzuki (ST80, ST90, X90, Super Carry), Toyota (Corolla, Hi-Ace, Hi-Lux, Land Cruiser, Lite Ace, Previa, Space Cruiser) and Volkswagen (Caddy, Caravelle, Crafter, LT Series, Polo, Taro, Transporter).

These are amongst the most commonly used light commercial vehicles in the UK. But if you don’t see your vehicle listed here, please give us a call, we may still be able to help and can usually spec up a filter by sample or OEM part number.

Engine Filters.

The Filter Guys

The range of engines in operation in the UK is vast and they all require engine and hydraulic filter elements. Our range of aftermarket filters covers a huge range of these applications including filters for: Briggs & Stratton, Case, Cat, Cummins, DAF, Detroit Diesel, Deutz, Fiat, Ford, Hatz, Honda, Isuzu, John Deere, Komatsu, Kubota, Lister Petter, Lombardini, MAN, Mercedes, Mitsubishi, Nissan, Perking, Ruggerini, Scania, Volvo, Yanmar and many more.

Regular, scheduled maintenance of your engine and hydraulic circuit filters can avoid breakdowns and lengthy downtime of your machine. Holding a set of filters in stock can also reduce the amount of time that your machine is down when the lead time for replacement filters is more than a few days.

At Sterling Filtration we endeavour to hold as much stock for as many machines as possible. If you have an urgent filter requirement, a breakdown to repair or are just looking for competitively priced filters for stock please give us a call today.

(C) freedigitalphotos.net & Danilin

Agricultural applications.

The Filter Guys

The range of machines in the agricultural sector in the UK is vast and they all require engine and hydraulic filter elements. Our range of aftermarket filters covers a huge range of these applications including filters for: Bobcat, Class, Case, David Brown, Ford, Iseki, JCB, John Deere, Komatsu, Kubota, Mac Cormick, Massey Ferguson, Matbro, Schmidt and many more.

Regular, scheduled maintenance of your engine and hydraulic circuit filters can avoid breakdowns and lengthy downtime of your machine. Holding a set of filters in stock can also reduce the amount of time that your machine is down when the lead time for replacement filters is more than a few days.

At Sterling Filtration we endeavour to hold as much stock for as many machines as possible. If you have an urgent filter requirement, a breakdown to repair or are just looking for competitively priced filters for stock please give us a call today.

(C) freedigitalphotos.net & xedos4

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