
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.
A/B Series FRL Units
Selection overview.
A/B air preparation covers compact A-body and larger B-body filters, regulators and lubricators. Select individual functions or a combination, then match the port, bowl capacity, drainage and mounting space to the machine.
Confirm the product-specific operating limits and dimensions for the selected series before use.

Series and configurations.
Use the series as a starting point. Provide the complete size and configuration in your requirement brief.

AF / BF Series
Air filters in compact and larger-body configurations.



AL / BL Series
Lubricator units for equipment requiring air-line lubrication.

AFC / BFC Series
Two-unit filter-regulator and lubricator assemblies.

AC / BC Series
Three-unit filter, regulator and lubricator assemblies.
Compare the series.
Review the construction, function and interfaces before narrowing the model.
| Series | Configuration | Choose for |
|---|---|---|
| AF / BF Series | Filter | Filtration and condensate drainage |
| AFR / BFR Series | Filter + regulator | Compact filtration and pressure control |
| AR / BR Series | Regulator | Pressure control with separate filtration |
| AL / BL Series | Lubricator | Equipment requiring oil mist |
| AFC / BFC Series | Filter-regulator + lubricator | Integrated filtration/regulation with lubrication |
| AC / BC Series | Filter + regulator + lubricator | Separate air-treatment components |
Model-specific technical data.
Open the relevant model group to review its listed specification. Options and operating limits apply to the displayed series and configuration.
A/B platform – filtration, regulation and construction
| Series | Filtration | Regulation range | Body | Bowl | Bowl guard |
|---|---|---|---|---|---|
| AF / BF Series | 40 μm (Standard) | – | Aluminum Alloy Die-cast | PE | Iron (BF Only) |
| AFR / BFR Series | 40 μm (Standard) | 0.05 ~ 0.85 MPa | Aluminum Alloy Die-cast | PE | Iron (BFR Only) |
| AR / BR Series | – | 0.05 ~ 0.85 MPa | Aluminum Alloy Die-cast | – | – |
| AL / BL Series | – | – | Aluminum Alloy Die-cast | PE | Iron (BL Only) |
| AFC / BFC Series | 40 μm (Standard) | 0.05 ~ 0.85 MPa | Aluminum Alloy Die-cast | PE | Iron (BFC Only) |
| AC / BC Series | 40 μm (Standard) | 0.05 ~ 0.85 MPa | Aluminum Alloy Die-cast | PE | Iron (BC Only) |
Confirm maximum inlet pressure, temperature, drain option and required flow for the exact model. A dash marks a function or component not specified in this table.
AF / BF Series – model selection
| Model | Port Size | Bowl Capacity (cc) | Weight (kg) | Drain Type |
|---|---|---|---|---|
| AF1500 | G1/8″ | 15 | 0.14 | Differential / Auto |
| AF2000 | G1/4″ | 15 | 0.14 | Differential / Auto |
| BF2000 | G1/4″ | 60 | 0.33 | Differential / Auto |
| BF3000 | G3/8″ | 60 | 0.33 | Differential / Auto |
| BF4000 | G1/2″ | 60 | 0.33 | Differential / Auto |
Confirm the exact port thread and mounting dimensions before selection.
AFR / BFR Series – model selection
| Model | Port Size | Bowl Capacity (cc) | Weight (kg) | Drain Type |
|---|---|---|---|---|
| AFR1500 | G1/8″ | 15 | 0.26 | Differential / Auto |
| AFR2000 | G1/4″ | 15 | 0.26 | Differential / Auto |
| BFR2000 | G1/4″ | 60 | 0.40 | Differential / Auto |
| BFR3000 | G3/8″ | 60 | 0.40 | Differential / Auto |
| BFR4000 | G1/2″ | 60 | 0.40 | Differential / Auto |
Confirm the exact port thread and mounting dimensions before selection.
AR / BR Series – model selection
| Model | Port Size | Weight (kg) |
|---|---|---|
| AR1500 | G1/8″ | 0.14 |
| AR2000 | G1/4″ | 0.14 |
| BR2000 | G1/4″ | 0.33 |
| BR3000 | G3/8″ | 0.33 |
| BR4000 | G1/2″ | 0.33 |
Confirm the exact port thread and mounting dimensions before selection.
AL / BL Series – model selection
| Model | Port Size | Bowl Capacity (cc) | Weight (kg) |
|---|---|---|---|
| AL1500 | G1/8″ | 25 | 0.17 |
| AL2000 | G1/4″ | 25 | 0.17 |
| BL2000 | G1/4″ | 90 | 0.25 |
| BL3000 | G3/8″ | 90 | 0.25 |
| BL4000 | G1/2″ | 90 | 0.25 |
Confirm the exact port thread and mounting dimensions before selection.
AFC / BFC Series – model selection
| Model | Port Size | Filter Bowl (cc) | Oil Bowl (cc) | Weight (kg) | Components |
|---|---|---|---|---|---|
| AFC1500 | G1/8″ | 15 | 25 | 0.5 | AFR1500 + AL1500 |
| AFC2000 | G1/4″ | 15 | 25 | 0.5 | AFR2000 + AL2000 |
| BFC2000 | G1/4″ | 60 | 90 | 0.7 | BFR2000 + BL2000 |
| BFC3000 | G3/8″ | 60 | 90 | 0.7 | BFR3000 + BL3000 |
| BFC4000 | G1/2″ | 60 | 90 | 0.7 | BFR4000 + BL4000 |
Confirm the exact port thread and mounting dimensions before selection.
AC / BC Series – model selection
| Model | Port Size | Filter Bowl (cc) | Oil Bowl (cc) | Weight (kg) | Components |
|---|---|---|---|---|---|
| AC1500 | G1/8″ | 15 | 25 | 0.7 | AF1500 + AR1500 + AL1500 |
| AC2000 | G1/4″ | 15 | 25 | 0.7 | AF2000 + AR2000 + AL2000 |
| BC2000 | G1/4″ | 60 | 90 | 0.9 | BF2000 + BR2000 + BL2000 |
| BC3000 | G3/8″ | 60 | 90 | 0.9 | BF3000 + BR3000 + BL3000 |
| BC4000 | G1/2″ | 60 | 90 | 0.9 | BF4000 + BR4000 + BL4000 |
Confirm the exact port thread and mounting dimensions before selection.
Specify the details
that affect fit and function.
Select the body format
Compare port size and bowl capacity for the individual model. The same nominal port can occur on both body formats, so check dimensions and service space.
Choose combined or separate functions
AFR/BFR integrates filtration and regulation. AFC/BFC adds lubrication to that unit, while AC/BC uses separate filter, regulator and lubricator components.
Specify condensate handling
State the drain required and confirm the option on the selected model. Include the operating cycle and maintenance access.
Define thread and pressure duty
The model tables identify G-thread ports. State any different thread requirement explicitly, together with inlet pressure, outlet setpoint, temperature and required flow.
Include in your requirement
- Required air flow
- Port size and thread
- Inlet and regulated pressure
- Filtration grade
- Drain arrangement
- Lubrication requirement
- Available installation space
Select flow at the required working pressure and allowable pressure drop. Confirm drain type, bowl protection and mounting dimensions for the chosen model. Replacement dimensions and accessories require model-specific confirmation.
Questions about a/b series frl units.
How do the A and B bodies differ?
A variants use the smaller body and bowl arrangement; B variants use the larger arrangement. Compare the exact model rather than selecting only by pipe size.
Which components form AFC and AC assemblies?
AFC/BFC combines AFR/BFR and AL/BL. AC/BC combines AF/BF, AR/BR and AL/BL as separate components.
How should I specify the drain?
Provide the exact model and drain operation. Include whether the circuit stays pressurized continuously or is regularly depressurized, plus maintenance access.
Can G ports accept R or NPT fittings?
Specify the mating thread and sealing arrangement exactly. G, R and NPT are different thread forms and must not be assumed interchangeable.
Prepare a a/b series frl units brief.
Add the preferred series, size, interfaces, quantity and your operating requirements.

