The AirTAC BR Air Pressure Regulator BR4000J4 is a genuine A/B-line regulator with PT1/2" ports. It is the compact air-preparation line, regulating 0.05 - 0.9 MPa (7 - 130 psi) with a push-to-lock knob. Flow is confirmed from the datasheet on request.
The BR4000J4 is an AirTAC compact B-line air pressure regulator: it reduces and holds downstream pressure from compressed air, with no filtration and no lubrication in this unit. This configuration is the 1/2 in PT size, the standard regulator type with a regulation range of 0.05-0.9 MPa (7-130 psi), and includes a dual-scale gauge reading kgf/cm2 and psi. The J suffix means no mounting bracket is supplied, so plan to mount the unit in-line or on your own panel. The self-locking adjustment knob pushes in to lock the set pressure against drift.
This is a genuine AirTAC part from the compact A/B line, which spans 1/8 in (1500C), 1/4 in (2000C), 3/8 in (3000C) and 1/2 in (4000C) ports. Flow is not published as a single rated figure, so we confirm flow and datasheet figures on request before you order.
| Model | Airtac BR Air Pressure Regulator BR4000J4 |
|---|---|
| Type | Air Pressure Regulator |
| Line | B-line (compact A/B air preparation) |
| Port size | PT1/2" (PT thread) |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) (low-pressure type to 0.4 MPa) |
| Fluid | Compressed air |
|---|---|
| Max. inlet pressure | 1.0 MPa (145 psi) |
| Temperature range | -20 to +70 C |
| 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.
Within the compact B-line, the 4000C body covers 1/2 in ports and suits lines with the highest air demand in this series; drop to the 3000C, 2000C or A-line sizes for smaller circuits. The J suffix omits the mounting bracket; order the plain BR4000 variant if you want the bracket included. The 4 gauge scale reads kgf/cm2 and psi; 1, 2 and 3 give MPa, psi or bar, and N removes the gauge. Thread is PT as standard, with G and NPT available to order.
Flow is not a single rating, so ask us to confirm sizing from the datasheet before ordering.
Holds a steady supply pressure to clamping cylinders on CNC machining fixtures, so workpieces stay gripped at a repeatable force from first part to last.
Regulates the air feeding pusher and ejector cylinders on carton-forming and case-packing lines, keeping stroke speed consistent as plant pressure drifts through the shift.
Provides an adjustable, monitored supply point at a workshop bench where trailer and mobile-equipment air circuits are tested and set before the vehicle leaves the bay.
Flow is not published as a single rated figure for compact A/B-line regulators, because it varies with the operating condition. We confirm the flow figures and full datasheet for this model on request, so share your circuit demand with us before ordering.
The J suffix means this BR4000J4 is supplied without a mounting bracket, so it is intended for in-line or panel mounting on your own hardware. The trailing 4 selects a dual-scale gauge reading kgf/cm2 and psi; MPa, psi-only and bar scales are available on other variants, and N removes the gauge entirely.