RF return oil filter – dual barrel, 3–200μm, no shutdown.

1. Product Overview

Aite RF Series Oil Return Filter is mainly used for fine filtration of oil return in 

pipeline hydraulic systems. Aite RF Series Oil Return Filter can be installed directly 

on the cover plate of the tank – completing the switching of the double barrel 

through the 3-way switching ball valve in the filter, facilitating maintenance and 

filter element replacement when the system is not closed. This design allows 

operators to service the filter without shutting down the hydraulic system, 

ensuring continuous operation and minimizing production downtime.

Aite RF Series Oil Return Filter is designed for reliable filtration performance in 

demanding industrial hydraulic applications. The filter element is made of glass

fiber material, offering high filtration accuracy, large oil flow capacity, small 

pressure loss, and large contaminant absorption capacity. Metal mesh material

 filter elements are also available for applications requiring coarser filtration or

 higher strength.

As a professional manufacturer specializing in industrial filtration equipment, 

we deliver Aite RF Series Oil Return Filter with stable performance, 

reliable construction, and competitive pricing for industrial facilities worldwide.

2. Technical Specifications

Parameter Specification

Usage Flow 30 L/min ~ 15,000 L/min

Pressure 2.5 MPa

Glass Fiber Filtration Accuracy 3 / 5 / 10 / 20μm

Metal Mesh Filtration Accuracy 25 / 50 / 100 / 200μm

Operating Temperature -10°C ~ +100°C

Applicable Medium Mineral oil, lubricating oil

Installation Tank cover plate mounting

Switching Mechanism 3-way switching ball valve (double barrel)

Pollution Indicator Visual or electrical signal (optional)

Filter Element Material Glass fiber / metal mesh

Aite RF Series Oil Return Filter delivers reliable oil return filtration across a wide

 range of industrial hydraulic applications – protecting pumps, valves, bearings, 

and other critical components from premature wear.

3. Performance Characteristics

Aite RF Series Oil Return Filter delivers superior performance through the 

following key characteristics:

3.1 Tank Cover Plate Mounting

Aite RF Series Oil Return Filter is mounted directly on the tank cover 

plate – simplifying installation and saving valuable floor space in industrial

 facilities.

3.2 Pollution Transmitter for Maintenance Indication

Aite RF Series Oil Return Filter is equipped with a pollution transmitter

 (visual or electrical signal) – providing clear indication when the filter element

 is polluted and blocked, allowing maintenance personnel to replace the filter

 element promptly and avoid unexpected downtime.

3.3 High-Performance Glass Fiber Filter Element

Aite RF Series Oil Return Filter uses glass fiber material filter elements – offering

 high filtration accuracy, large oil flow capacity, small pressure loss, and large

 contaminant absorption capacity.

3.4 Double Barrel Design with 3-Way Switching Ball Valve

Aite RF Series Oil Return Filter features a double barrel design with a 3-way 

switching ball valve – allowing filter element maintenance and replacement 

without shutting down the system, ensuring continuous operation.

3.5 Multiple Filtration Accuracy Options

Aite RF Series Oil Return Filter is available in multiple filtration accuracy

 grades – glass fiber elements at 3, 5, 10, and 20μm; metal mesh elements at

 25, 50, 100, and 200μm – allowing selection based on system cleanliness

 requirements.

3.6 Wide Flow Range

Aite RF Series Oil Return Filter accommodates usage flow from 30 L/min to 

15,000 L/min – suitable for both small and large hydraulic systems.

4. Working Principle

Aite RF Series Oil Return Filter is mainly used for fine filtration of oil return in 

pipeline hydraulic systems. The filter can be switched through the 3-way 

switching ball valve in the filter when the system is not closed – facilitating

 maintenance and replacement of the filter element without interrupting system 

operation. This double barrel design ensures continuous filtration performance 

and minimizes production downtime.

5. Application Fields

Aite RF Series Oil Return Filter is widely used across diverse industrial sectors:

Industry Typical Applications

Industrial Hydraulics Oil return filtration in pipeline 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 RF Series Oil Return Filter is compatible with mineral oil and lubricating 

oil – providing versatile filtration solutions across multiple industries and 

applications.

6. Frequently Asked Questions (FAQ)

Q1: What is the Aite RF Series Oil Return Filter designed for?

A: Aite RF Series Oil Return Filter is mainly used for fine filtration of oil return in 

pipeline hydraulic systems – removing contaminants to ensure normal system

 operation and protect critical components from premature wear.

Q2: How is the Aite RF Series Oil Return Filter installed?

A: Aite RF Series Oil Return Filter is mounted directly on the tank cover 

plate – simplifying installation and saving valuable floor space.

Q3: How does the double barrel design of the Aite RF Series Oil Return Filter work?

A: Aite RF Series Oil Return Filter features a double barrel design with a 3-way

 switching ball valve – allowing filter element maintenance and replacement 

without shutting down the system, ensuring continuous operation.

Q4: What filter element materials are available for the Aite RF Series Oil Return 

Filter?

A: Aite RF Series Oil Return Filter is available with glass fiber material

 (filtration accuracy 3/5/10/20μm) and metal mesh material 

(filtration accuracy 25/50/100/200μm) – selectable based on system cleanliness 

requirements.

Q5: What is the flow range of the Aite RF Series Oil Return Filter?

A: Aite RF Series Oil Return Filter accommodates usage flow from 30 L/min to 

15,000 L/min – suitable for both small and large hydraulic systems.

Q6: What is the operating pressure of the Aite RF Series Oil Return Filter?

A: Aite RF Series Oil Return Filter operates at a pressure of 2.5 MPa – suitable for 

most industrial hydraulic return line applications.

Q7: What is the operating temperature range for the Aite RF Series Oil Return Filter?

A: Aite RF Series Oil Return Filter operates reliably at temperatures from -10°C 

to +100°C – covering the majority of industrial hydraulic applications.

Q8: How does the pollution transmitter on the Aite RF Series Oil Return Filter work?

A: The pollution transmitter on Aite RF Series Oil Return Filter provides visual 

or electrical signal indication when the filter element is polluted and 

blocked – allowing maintenance personnel to replace the filter element promptly.

Q9: What media are compatible with the Aite RF Series Oil Return Filter?

A: Aite RF Series Oil Return Filter is compatible with mineral oil and lubricating

 oil – suitable for diverse industrial hydraulic applications.

Q10: What documentation is provided with the Aite RF Series 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.

Q11: Can the Aite RF Series Oil Return Filter be customized?

A: Yes. Custom options for Aite RF Series Oil Return Filter include special flow rates,

 filtration accuracy, filter element materials, and pollution transmitter 

type – based on site-specific requirements.

Q12: Can I order a trial unit of the Aite RF Series Oil Return Filter?

A: Yes. We support trial orders with standard delivery lead time of 20–30 working

 days. Volume discounts are available for bulk orders from distributors and 

industrial end users.

Aite RF Series Oil Return Filter – tank cover plate mounting, double barrel design

 with 3-way switching ball valve, high-performance glass fiber filter element,

 wide flow range. Contact us today for a free configuration recommendation and

 competitive factory-direct quotation within 24 hours.

Product details