Construction Machinery Parts Hydraulic Return Oil Filter Piston Pump Loader Excavator Bucket Iron Part

Construction Machinery Parts Hydraulic Return Oil Filter Piston Pump Loader Excavator Bucket Iron Part

Product Description:

When the hydraulic system is working, the oil circulates under pressure, inevitably producing impurities such as metal particles, sealing material debris, dust, and gel like substances. The return oil filter element is usually installed in the return oil pipeline, and its working principle is based on physical interception and adsorption. When the oil carrying impurities flows through the filter element, the filter layer made of special materials (such as glass fiber, metal mesh, etc.) inside it will act like a precision mesh, firmly capturing solid particles larger than its rated accuracy, allowing only clean oil to pass through, and finally returning to the oil tank. This process continues, effectively preventing pollutants from accumulating in the fuel tank and being pumped in again, forming a vicious cycle, thereby protecting the safety of precision components such as oil pumps and valves.

Features:

High-precision filtration: The precision is typically between 1-40μm, with a common range of 5-20μm. The fiberglass material has a βx≥200, with a filtration efficiency of over 99.5%. The stainless steel mesh filter can be reused after cleaning.

Low pressure loss and large flow capacity: The initial pressure loss is usually ≤0.08MPa, with a large flow capacity and a flow range covering from 25L/min to 1300L/min, suitable for various equipment.

Strong environmental resistance: Stainless steel can withstand extreme temperatures ranging from -10℃ to +100℃, boasts high pressure-bearing capacity, and can endure pressure differences up to 21MPa.

Robust and durable structure: It possesses extremely high axial and radial stiffness, capable of withstanding pulsations and hydraulic shocks in the return oil circuit without deforming.

Safety redundancy design: Equipped with a bypass valve (opening pressure approximately 0.4 MPa) and a differential pressure transmitter (alarm pressure approximately 0.35 MPa). When the filter element becomes clogged, the transmitter will first trigger an alarm. If it is not replaced in time, the bypass valve will open to protect the system.

Convenient and quick maintenance: The direct return design makes replacing the filter element as simple as changing a screw cap. Some dual-cylinder models also allow for filter element replacement without stopping the machine. At the same time, the bottom diffuser design enables smooth oil return, avoiding the generation of bubbles and agitating sediment at the bottom of the oil tank

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