RFA-25 return oil filter – 25–1000 L/min, 1–30μm.

1. Product Overview

Aite RFA-25 Series Replacement Oil Return Filteris installed on the oil return pipeline at the end of the system. Its function

 is to filter out pollutants generated or invaded in the system before returning to the oil tank. Although it is a low-pressure

 pipeline, pulsation or pressure shock may also occur according to the operating conditions of the transmission – so the

 material and strength of the components should be fully considered.

Aite RFA-25 Series Replacement Oil Return Filter is engineered as a fully interchangeable substitute for original LEEMIN 

models – maintaining identical dimensional parameters, interface specifications, and filtration performance to enable

 direct drop-in installation without any housing modifications. This high-performance oil return filter delivers reliable

 filtration performance across a wide range of industrial applications.

As a professional manufacturer specializing in industrial filtration equipment, we deliver Aite RFA-25 Series Replacement 

Oil Return Filter with stable performance, reliable construction, and competitive pricing for industrial facilities worldwide.

2. Technical Specifications

Parameter Specification

Filter Model RFA Series

Nominal Flow 25–1000 L/min

Nominal Pressure 1.6 MPa

Filtration Precision 1–30μm

Nominal Diameter 15–90 mm

Connection Method Thread, flange

Installation Directly installed on oil tank cover

Signalling Device Signal indication at 0.35 MPa inlet pressure

Aite RFA-25 Series Replacement Oil Return Filter delivers reliable oil return filtration performance across a wide range of

 hydraulic system applications – protecting critical components and ensuring clean oil circulation.

3. Product Features

Aite RFA-25 Series Replacement Oil Return Filter delivers superior performance through the following key features:

3.1 Direct Tank Cover Installation

Aite RFA-25 Series Replacement Oil Return Filter is directly installed on the oil tank cover – with the filter head exposed

 outside the oil tank and the oil return cylinder immersed in the oil tank. The oil inlet is connected with pipe type and flange

 type, thus simplifying system piping.

3.2 Signalling Device for Maintenance Indication

When the filter element of Aite RFA-25 Series Replacement Oil Return Filter is blocked by pollutants, or when the system 

liquid temperature is too low, flow pulsation, and other factors cause the oil inlet pressure to be 0.35 MPa, the signalling 

device will send a signal indication – allowing maintenance personnel to replace the filter element promptly.

3.3 High Filtration Precision

Aite RFA-25 Series Replacement Oil Return Filter has the advantages of high filtration precision, large oil passing capacity, 

small original pressure loss, and large dirt holding capacity.

3.4 Wide Flow Range

Aite RFA-25 Series Replacement Oil Return Filter accommodates nominal flow from 25 L/min to 1000 L/min – suitable for 

both small and large hydraulic systems.

3.5 Multiple Connection Options

Aite RFA-25 Series Replacement Oil Return Filter is available with thread and flange connection methods – providing

 flexibility for different installation requirements.

3.6 Robust Construction

Aite RFA-25 Series Replacement Oil Return Filter is designed with full consideration of material and strength of

 components – ensuring reliable performance under pulsation and pressure shock conditions.

Aite RFA-25 Series Replacement Oil Return Filter offers equivalent performance to genuine LEEMIN parts at 40%–60% 

lower cost – making it an ideal choice for cost-conscious maintenance programs without compromising system protection.

4. Application Fields

Aite RFA-25 Series Replacement Oil Return Filter is widely used across diverse industrial sectors:

Industry Typical Applications

Industrial Hydraulics Oil return filtration in hydraulic systems

Metallurgy Rolling mills, continuous casting machines, lubrication equipment

Manufacturing Machine tools, injection molding machines, automated production lines

Power Generation Turbine lubrication and electro-hydraulic control systems

Construction Machinery Heavy equipment hydraulic systems

Petrochemical Fluid transmission and oil circulation systems

Aite RFA-25 Series Replacement Oil Return Filter is compatible with mineral oil, lubricating oil, and various industrial

 fluids – providing versatile filtration solutions across multiple industries and applications.

5. Quality Assurance & Supply Capabilities

Aite RFA-25 Series Replacement Oil Return Filter is manufactured under strict quality control standards in our own

 production facilities. Each unit undergoes comprehensive testing to verify:

· Dimensional Accuracy: Full interchangeability with original LEEMIN specifications

· Filtration Performance: Filtration precision 1–30μm validated

· Structural Integrity: Pressure testing to confirm 1.6 MPa nominal pressure

· Sealing Integrity: Leak-proof verification

· Signalling Device Function: Calibration and functional testing at 0.35 MPa

Supply Capabilities:

· Small trial orders: 15–20 days delivery

· Bulk orders: 30 working days delivery

· EXW, FOB, and CIF trade terms available

· Full export documentation for smooth customs clearance worldwide

6. Frequently Asked Questions (FAQ)

Q1: What is the Aite RFA-25 Series Replacement Oil Return Filter designed for?

A: Aite RFA-25 Series Replacement Oil Return Filter is designed for oil return pipeline filtration at the end of hydraulic

 systems – filtering out pollutants generated or invaded in the system before returning to the oil tank.

Q2: How is the Aite RFA-25 Series Replacement Oil Return Filter installed?

A: Aite RFA-25 Series Replacement Oil Return Filter is directly installed on the oil tank cover – with the filter head 

exposed outside the oil tank and the oil return cylinder immersed in the oil tank.

Q3: What is the nominal flow range of the Aite RFA-25 Series Replacement Oil Return Filter?

A: Aite RFA-25 Series Replacement Oil Return Filter accommodates nominal flow from 25 L/min to 1000 L/min – suitable 

for both small and large hydraulic systems.

Q4: What is the filtration precision of the Aite RFA-25 Series Replacement Oil Return Filter?

A: Aite RFA-25 Series Replacement Oil Return Filter offers filtration precision from 1μm to 30μm – effectively capturing 

particulate contaminants.

Q5: What is the nominal pressure of the Aite RFA-25 Series Replacement Oil Return Filter?

A: Aite RFA-25 Series Replacement Oil Return Filter has a nominal pressure of 1.6 MPa – suitable for low-pressure return 

line applications.

Q6: How does the signalling device on the Aite RFA-25 Series Replacement Oil Return Filter work?

A: When the filter element is blocked by pollutants or system liquid temperature is too low causing oil inlet pressure 

to reach 0.35 MPa, the signalling device on Aite RFA-25 Series Replacement Oil Return Filter sends a signal indication.

Q7: What are the performance advantages of the Aite RFA-25 Series Replacement Oil Return Filter?

A: Aite RFA-25 Series Replacement Oil Return Filter features high filtration precision, large oil passing capacity, small 

original pressure loss, and large dirt holding capacity.

Q8: What connection methods are available for the Aite RFA-25 Series Replacement Oil Return Filter?

A: Aite RFA-25 Series Replacement Oil Return Filter is available with thread and flange connection methods – providing

 flexibility for different installation requirements.

Q9: What documentation is provided with the Aite RFA-25 Series Replacement Oil Return Filter?

A: Each unit includes a factory test report, operating manual, dimensional drawings, and material certificates – ensuring

 smooth installation and comprehensive operational guidance.

Q10: Can the Aite RFA-25 Series Replacement Oil Return Filter be customized?

A: Yes. Custom options for Aite RFA-25 Series Replacement Oil Return Filter include special flow rates, filtration precision,

 connection types, and nominal diameters – based on site-specific requirements.

Q11: What industries use the Aite RFA-25 Series Replacement Oil Return Filter?

A: Aite RFA-25 Series Replacement Oil Return Filter is widely used in industrial hydraulics, metallurgy, manufacturing, 

power generation, construction machinery, and petrochemical applications.

Q12: Can I order a trial unit of the Aite RFA-25 Series Replacement Oil Return Filter?

A: Yes. We support trial orders with standard delivery lead time of 15–20 working days. Volume discounts are available

 for bulk orders from distributors and industrial end users.

Aite RFA-25 Series Replacement Oil Return Filter – direct tank cover installation, 25–1000 L/min flow, 1–30μm precision, 

signalling device at 0.35 MPa, high filtration precision and large dirt holding capacity. Contact us today for a free 

configuration recommendation and competitive factory-direct quotation within 24 hours.

Product Details