The AirTAC BFR Air Filter Regulator BFR4000ML4 is a genuine A/B-line filter regulator with PT1/2" ports. It is the compact air-preparation line, regulating 0.15 - 0.9 MPa (20 - 130 psi) with a push-to-lock knob. Flow is confirmed from the datasheet on request.
The BFR4000ML4 combines water and particulate filtration with pressure regulation in a single larger B-line body of AirTAC's compact A/B series. It has a 1/2 in. PT-threaded port, a 40 um standard filter element and a manual drain you open by hand at the point of use. As an L-type low-pressure unit, its regulated outlet is limited to 0.4 MPa maximum, which suits circuits that must not see full line pressure. The push-to-lock self-locking knob holds the set pressure against vibration, and the included gauge is scaled in kgf/cm2 and psi.
This is a genuine AirTAC part. Maximum inlet pressure is 1.0 MPa (145 psi), the bowl is PC, operating temperature is -5 to 70 C (non-freezing), and the medium is compressed air. The compact A/B line spans the 1500 to 4000 sizes, 1/8 to 1/2 in. Flow is not published as a single rating, so ask us and we will confirm the datasheet figures on request.
| Model | Airtac BFR Air Filter Regulator BFR4000ML4 |
|---|---|
| Type | Filter Regulator |
| Line | B-line (compact A/B air preparation) |
| Port size | PT1/2" (PT thread) |
| Filter grade | 40 um standard, 5 um optional (W) |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) (low-pressure type to 0.4 MPa) |
| Fluid | Compressed air |
|---|---|
| Max. inlet pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 C (non-freezing) |
| Bowl material | PC (polycarbonate) |
| Pressure drop | Low (catalogue-stated) |
Specifications follow the official AirTAC A/B-line air-preparation data. Drain type, filter grade, gauge and low-pressure options are set by the model-code suffix - see the description. Flow curves, weight and outline dimensions are not published in our data set — ask us and we confirm from the factory datasheet.
Choose the B-line 4000 size with its 1/2 in. port when your line volume points to the larger compact body; the smaller A-line covers lighter duties. Pick the manual drain (M) where an operator already tends the point of use, or an automatic-drain (A) version if drainage must happen unattended. The standard 40 um element suits general protection, and the W option gives 5 um where finer filtration is needed. Confirm that a 0.4 MPa regulated maximum really matches your circuit - that is what the L-type here is for - and note gauge scale options (MPa, psi, bar, kgf/cm2 & psi) and G (BSPP) or NPT threads are available to order instead of the PT standard.
Flow is not a single published rating, so send us your line conditions and we will confirm datasheet sizing before you order.
Filter and regulate supply air to pneumatic clamps on a welding fixture where the clamping force must stay within a capped 0.4 MPa setting.
Condition and step down air to the dispensing valves on an adhesive application line, with the gauge letting operators verify the set point in kgf/cm2 or psi.
Protect and regulate the air feeding sorting actuators and pop-up stops on a conveyor line, with the manual drain emptied during routine line checks.
Flow is not published as a single rated figure - it varies with your inlet pressure and set pressure - so we do not quote one here. Tell us your line conditions and we will confirm the datasheet flow figures for this unit on request before you order.
M is the drain code: this unit has a manual drain, which you open by hand to discharge collected water. If you would rather have drainage handled without operator attention, the A-suffix version of the same size carries an automatic drain.