RFB Series Direct Back Return Line Return Filter

RFB series direct return self sealing magnetic oil return filter is mainly used for fine filtering of oil return in hydraulic systems, filtering out metal particles caused by component wear in hydraulic systems, as well as rubber impurities caused by seal wear, and other pollutants, so as to keep the oil flowing back to the tank clean

Note: According to user requirements, different specifications and models of filters can be customized.

This filter can be installed directly on the top, side, or bottom of the oil tank. The filter head is exposed outside the oil tank, and the cylinder is partially immersed in the oil tank, simplifying the system pipeline and making the system layout more compact.

Equipped with a permanent magnet, it can filter out ferromagnetic particles above 1 micron in the oil.

With bypass valve: When cold oil is started, due to factors such as low system liquid temperdture, flow pulsation, etc., the filter differential pressure is too large, and the host machine cannot work, as well as when the filter element is blocked by pollutants, the bypass valve in parallel at the lower part of the filter cover will automatically open, with an opening pressure differential value of 0.4 MPa, to protect the normal operation of the filter element and the system.

With a check valve: The filter is placed on the side and bottom of the tank, so that when replacing the filter element, the oil in the tank will not flow out.

A liquid flow diffuser is provided, which is composed of a liquid flow diffuser and the lower part of the cylinder, enabling the return oil to flow smoothly into the oil tank, making it difficult to generate bubbles, reducing re-entry air, reducing the turbulence of deposited pollutants, and providing coarse filtration when the bypass valve is opened.

Equipped with a visual indication and electrical signal transmission device, overflow pipe, and pollution accumulation cup: When the filter element gradually becomes clogged, the clogging condition of the filter element can be observed on the sight gauge, and an electric signal can also be received, with a signal value of 0.35MPa.

An overflow pipe and a fouling cup are arranged at the bottom of the filter element, which can be taken out with the filter element when it is replaced, thereby avoiding the phenomenon of pollutants falling back into the oil tank.

Features includes convenient installation, connection, and replacement of filter elements: The oil inlet is connected by flange. For the mounting flange of the filter head and the oil tank, the user can design and process six flange screw holes on the oil tank plate according to the dimensions in the chart. Unscrew the top cover of the intake filter to replace the filter element or add oil to the tank.

Attached oil return holes: There are two oil return holes on the side and top of the filter head, which can be used to return a small amount of oil in the system to the oil tank for filtration or to add a small amount of oil to the oil tank. When the filter is installed on the side or bottom of the oil tank, unscrewing the small hole cover can remove the oil containing pollutants in the filter, thereby extending the service life of the filter element and facilitating the purification of the oil.

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