Technomech Engineering

Hydraulic Filters

What is a low pressure hydraulic filter and for which hydraulic applications do you need one?

A low pressure filter normally operates at maximum pressures of up to 10 bar but some special type spin-on filters may operate at pressures of up to 35 bar and may also be considered as medium pressure hydraulic filters. A hydraulic filtration system includes at least a return line filter, but most filtration systems also have a suction filter installed. A suction filter is for coarse filtration and protects the pump from damage of large particles only.

Low pressure filters include suction filters, return line filters and bypass filtration systems.

Fine filtration is achieved by using return line hydraulic filters or even higher grades of filtration can be achieved by using a bypass filtration system. With dimensioning of return line hydraulic filters, one should consider the maximum possible hydraulic system flow. Especially when hydraulic differential cylinders are amongst the actuators, the oil return flow can be much higher compared to the maximum capacity of the hydraulic pumps used in the system.

Types Of Low Pressure Filters:

What is heavy duty filtration and for which hydraulic applications do you need it?

Heavy duty filtration comprises hydraulic filters and filtration systems for demanding applications in various industrial, mobile and offshore applications. Hydraulic equipment that is operating under tough conditions during continuous 24 hour operation in heavy duty applications. We supply low to medium pressure heavy duty hydraulic filters with nominal flow rates of up to 2000 l/min. Use duplex filters to change elements without interrupting continuous operations.

High flow at low to medium pressure with heavy duty filters for hydraulic and lubrication systems.

With housings of cast iron, aluminum and welded steel, heavy duty hydraulic filters are a durable solution that you can rely on during 24/7 hydraulic operations. Heavy duty filtration also includes filters for lube oil systems of gear boxes and filters for fuel systems of diesel engines and gas turbines. Industrial hydraulic applications include steel and aluminum mills, paper production, metal cutting equipment and industrial power packs.

Types Of Heavy Duty Filtration:

What is a standard pressure filter and for which hydraulic application do you need one?

Standard pressure filters for hydraulic applications are medium to high pressure hydraulic filters. The pressure line filter, also referred to as a high pressure filter, is most commonly used in a hydraulic system. This type of filter is equipped with a bypass check valve. When a pressure line filter is installed directly in back of the pump, it acts as the main filter for the complete flow and protects all hydraulic components against wear and tear.

Protect your hydraulic components with a high pressure filter for mobile and industrial applications.

Some hydraulic components are very sensitive to contamination, such as hydraulic servo valves. In those case a pressure line filter acts as a safety filter when installed in front of an endangered component (e.g. servo control valve). To ensure maximum functionality of these critical components, the normal practice is that the pressure line safety filter must be fitted as close as possible to the component it is protecting (e.g. in the housing bores).

Types Of Standard Pressure Fiters:

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