Interchange Hydraulic Filter Element 31RF-10150-DS Modern R220 Return Line Hydraulic Oil Filter

Product Description:

Return filters perform the task of filtering fluid and preventing particles from entering the system externally or from internal wear and tear of components. These filters are normally mounted to the reservoir fully or semi-immersed. The position of the filters ensures returning fluid takes place in an immersed condition in all operating conditions, preventing the creation of foam and vortexes in the tank that can cause aeration and cavitation in pumps. For convenience the bowl and filter element can be removed from the housing to service without disconnecting the filter from the rest of the system.

Features:

1. Using multi-layer composite glass fiber or stainless steel filter materials, the filtration accuracy is usually 5-20 microns, which can effectively capture pollutants such as metal debris and rubber particles. The single filtration efficiency can reach over 99%, significantly extending the life of hydraulic oil and components.

2. The 20 filter element design has sufficient filtration area, with low resistance when oil passes through. The initial pressure drop usually does not exceed 0.08MPa, ensuring smooth oil return to the system without affecting the efficiency of the main pump and system response speed.

3. When the filter element is clogged and the pressure difference rises to the set value (such as 0.35-0.4MPa), the bypass valve automatically opens, allowing the oil to return directly to the tank without filtration. This is to prevent the filter element from crushing or causing greater damage due to a lack of oil in the system, which is a safety design. However, the filtering function is temporarily disabled when turned on.

4. An optional differential pressure transmitter can be installed. When the differential pressure reaches the warning value (such as 0.2-0.35MPa), an electrical signal or visual prompt (such as a red indicator column popping up) can be sent to remind the operator to replace the filter element in a timely manner and avoid the system being in a bypass state for a long time.

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