The SFF-41 Oil Pump Filter Element is a return-line filtration component designed for hydraulic systems; its primary function is to filter impurities and contaminants from the oil, thereby ensuring the proper operation of the equipment. The following is a summary of the basic information for this filter element:

Product Model SFF-41 / SFF-41S

Application Used in the return line of hydraulic oil systems to continuously filter impurities, moisture, and other contaminants from the oil, ensuring the normal operation of the system.

Applicable Media Hydraulic oil, lubricating oil, gear oil, circulating cooling oil, etc.

Filtration Precision Glass Fiber Media: 1–70 μm; Metal Mesh Media: 3–400 μm; Filter Paper Media: 5–40 μm

Filter Media Type Glass fiber, stainless steel metal mesh, filter paper, sintered felt, sintered mesh, sintered powder, polypropylene, etc.

Operating Pressure ≤ 450 kg (approx. 45 MPa); maximum operating pressure for certain specifications is 420 kg.

Operating Temperature -30°C to 115–120°C

Rated Flow Rate 6–9100 L/min (wide range; specific value depends on the model).

Seal Material Nitrile Rubber (NBR), Fluororubber (FKM), etc.

Testing Standards International standards including ISO 2941, 2942, 2943, 3723, 3724, 3968, 4572, 16889, etc.

Main Application Fields

The SFF-41 filter element is widely used in the hydraulic systems and lubrication equipment of the following industries:

- Electric Power Industry: Gas ​​turbines, boiler lubrication systems, speed control systems, feedwater pumps, fans, etc., in thermal and nuclear power plants.

- Iron & Steel Metallurgy: Hydraulic systems for rolling mills and continuous casting machines, as well as various lubrication equipment.

- Construction Machinery: Tunnel boring machines (TBMs), excavators, cranes (including marine cranes), injection molding machines, etc.

- Petrochemical Industry: Fluid purification during oil refining and chemical production processes.

- Shipbuilding: Marine cranes, painting equipment, welding equipment, etc.

- - Rail & Automotive: Hydraulic oil filters for railway diesel engines, construction vehicles, and heavy-duty trucks

- Other Industries: Papermaking machinery, mining machinery, textile machinery, electronics, pharmaceuticals, etc.

Leah     Sales Manager

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