The AirTAC BFR Air Filter Regulator BFR40004 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 AirTAC BFR40004 is the largest-port compact B-line filter regulator: water and particulate removal plus pressure regulation in one body. This code is the standard configuration in the 1/2 in port size on PT threads, with the 40 um standard element, a PC bowl drained by its built-in differential-pressure drain with manual override, the standard pressure type, and an included gauge reading in kgf/cm2 and psi. Regulation range is 0.15 to 0.9 MPa (20 to 130 psi), max working pressure is 1.0 MPa (145 psi), and the push-to-lock knob keeps the setpoint from drifting.
This is a genuine AirTAC part from the compact A/B line, not the larger G/GA series. The same function comes in the smaller A-line (AFR) and in 1/8 in, 1/4 in, 3/8 in and 1/2 in ports, with G (BSPP) or NPT threads available to order alongside the PT standard. Flow is not published as a single rated figure, so ask us to confirm the datasheet flow numbers for your sizing before you order.
| Model | Airtac BFR Air Filter Regulator BFR40004 |
|---|---|
| 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.
Pick this 1/2 in B-line body for main air drops and header takeoffs where flow demand is highest; the A-line AFR or smaller ports cover branch and point-of-use duty. This code keeps the defaults: 40 um element for general plant air, and the differential-pressure drain that bleeds automatically as the bowl fills, with a manual override for service checks. Choose a W-suffix code for the 5 um element, an A-suffix code for a fully automatic drain, or an N-suffix code if you will mount your own gauge elsewhere. PT is the standard thread here; order G or NPT if your piping needs it. Because flow is not a single published rating, give us your demand and we will confirm datasheet figures before you order.
Installed at a 1/2 in branch off the main air header in a factory, it filters header air and sets a controlled downstream pressure for an entire work cell, with the differential-pressure drain keeping the bowl clear during shifts.
Mounted ahead of a bank of directional control valves on an automation station, it removes water and particles that would score valve spools and holds the supply pressure the valve and cylinder circuit was designed around.
Used on a workshop test bench that services commercial-vehicle air systems, it conditions shop compressor air and lets the technician dial a repeatable test pressure, read on the kgf/cm2 and psi gauge.
Flow for this compact B-line filter regulator is not published as a single rated figure, so we will not quote a number. Tell us your line's flow demand and working pressure and we will confirm the datasheet flow figures for the BFR4000 size so you can verify it covers your application before ordering.
This code uses the default drain: a differential-pressure drain that bleeds collected water from the PC bowl on its own as condensate builds, plus a manual means to empty it during service. If the unit will sit in an unattended location where you want fully automatic drainage, ask us for the A-suffix version instead.