Return Line Filter
The oil flows to various hydraulic components, such as cylinders, motors, and valves. During this time interval, oil gets contaminated as it carries dirt before it reaches the tank. Dumping dirty oil into the tank is not safe as it forms sludge and deposits within the system. These deposits can obstruct flow passages, leading to potential blockages and malfunctions. To reduce the chances of blockage and to maintain cleanliness, return line filters are used.
Where Are Return Line Filters Installed?
These elements are installed at the return line of hydraulic systems just before the tank. This is the line through which the fluid gets back to the reservoir or tank after it has executed its intended function in the system.
Types of Return Line Filters
- In-tank Return Filters
These cartridges are installed directly inside the hydraulic tank or reservoir. They save space and are easily accessible for maintenance.
- Inline Return Filters
They are independent of the tank and can be placed at any point in the system, offering flexibility in system design.
- Off-line (Bypass) Filters
These filters are used in systems with a separate filtration circuit. They continuously filter hydraulic fluid without interrupting the main operation.
Technical Specifications
- Filtration Rating
3 μm, 6 μm, 10 μm, 25 μm, 35 μm, 50 μm, 100 μm, 150 μm Etc.
- Recommended Initial Differential Pressure For Design
7.25 PSI
- Flow Rate
05 LPM to 1400 LPM
- Bypass Valve Cracking Pressure
1.5 to 3 bar
- Operating Pressure
50 psi to 440 psi
- Filter Media
Glassfiber, Stainless Steel Wire Mesh, Synthetic Cellulose
- Temperature Range
-30°C to +100°C
Advantages
Protects hydraulic components from contamination.
Extends equipment life and reduces downtime.
Improves system efficiency and performance.
Reduces maintenance costs.
Enhances fluid cleanliness and reliability.
Easy maintenance and replacement options.
Applications
Hydraulic power units (HPUs)
Construction Equipment
Industrial machinery
Agricultural machinery
Marine hydraulic systems
Injection molding machines
