Industry News

When making a choice for your application contact our customer service department should you need any help. For example, in low pressure applications cellulose elements may be appropriate, while high pressure corrosive applications may call for stainless steel filter elements.

Air filters

Originally, the engine air filters consisted of an oil bath and filter media capable of holding a large amount of dirt, but were messy and awkward to service. They have been replaced with the media mesh filters that we are familiar with today, which can be made of paper, foam and cotton.

Modern air filters are rated based on the amount of air born particles they capture. These ratings are typically a letter and number designation such as G1, G2 and so on.

Filter categories

Where applicable, the primary and secondary filters range from G1 to F9. The ones used on vehicles are in the F5 to F9 range. The cabin filters, which remove dust and pollen from the air, are rated above F9.

Service intervals on engine air filters were typically tied to the vehicle oil change interval, but as manufacturers in­creased the oil change intervals, air filters had to last longer as well.

Transmission filters

Some fluid filters such as oil and transmission filters have ex­tended service intervals, although many transmission filters do not have any, so they have to provide protection for the life of the vehicle. The transmission pressures are monitored by the ECU, and a low transmission pressure code could be caused by a dirty filter.

Oil filters

Long life oil filters have a pore size of 3 to 5 microns and have successfully increased the oil change interval to 15,000 kms while providing the required protection for the engine.

WUZHOUKINGDA supplies a range of industrial process filter elements to suit diverse processing conditions such as operating temperature, viscosity, and chemical compatibility.