FRL Units & Air Preparation
Filters, regulators and lubricators for preparing compressed air at the machine. Compare A, A/B and G platforms, then choose the functions, flow and drain arrangement needed by the circuit.
Find the component
for your required function.
A Series FRL Units
Classic modular air preparation with separate filters, regulators and lubricators, plus two-unit and three-unit combinations.
Review series
A/B Series FRL Units
A/B platform filters, regulators, lubricators and combination units for general pneumatic circuits. Compare the body size and connection layout with the installation.
Review series
G Series FRL Units
G-platform air preparation components covering filtration, pressure regulation and lubrication. Compare standalone units and combinations by flow, port size and drain configuration.
Review seriesCompare the selection routes.
Start with the component function, then open the category to compare individual series and technical data.
| Category | Series examples | Selection focus |
|---|---|---|
| A Series FRL Units | AF Series / AW Series / AR Series | Required air flow; Port size and thread; Inlet and regulated pressure |
| A/B Series FRL Units | AF / BF Series / AFR / BFR Series / AR / BR Series | Required air flow; Port size and thread; Inlet and regulated pressure |
| G Series FRL Units | GF Series / GFR Series / GR Series | Required air flow; Port size and thread; Inlet and regulated pressure |
Details that guide selection.
Use the category pages to narrow the series, then confirm these requirements for the selected configuration.
- Required air flow
- State the required air flow and the operating pressure at the component.
- Port size and thread
- Specify the thread standard, nominal size and mating connection.
- Inlet and regulated pressure
- State normal and maximum operating conditions for the intended application.
- Filtration grade
- Include this detail in the requirement brief so the selected configuration can be reviewed.
- Drain arrangement
- Include this detail in the requirement brief so the selected configuration can be reviewed.
- Lubrication requirement
- Include this detail in the requirement brief so the selected configuration can be reviewed.
- Available installation space
- Include this detail in the requirement brief so the selected configuration can be reviewed.
Before you select.
How do I choose between individual and combined FRL units?
Define the required filtration, pressure regulation and lubrication functions, then compare the available combinations and port sizes. Include the downstream equipment's lubrication requirement.
Which details affect an FRL replacement?
Check the port thread, assembly order, gauge connection, bowl arrangement, drain and mounting dimensions. Nominal port size alone does not establish an identical assembly.
What information should accompany an air-preparation requirement?
Record the required functions, port size, flow demand, inlet and outlet conditions, drain preference and installation clearance. Review the selected series' data and accessory arrangement.
Prepare a air preparation requirement.
Include the series under consideration, installation details and operating conditions.