The AirTAC BR Air Pressure Regulator BR40004 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 BR40004 is the largest-port regulator of AirTAC's compact B-line. It reduces and holds downstream air pressure anywhere in a 0.05 to 0.9 MPa (7 to 130 psi) range, with a maximum inlet/working pressure of 1.0 MPa (145 psi). The push-to-lock self-locking knob prevents the set pressure from drifting, and this configuration includes a mounting bracket and a gauge graduated in kgf/cm2 and psi. It carries compressed air only, in a 1/2 in PT port, and operates from -20 to 70 C.
This is a genuine AirTAC part in the compact A/B series, which also comes as 1/8 in (1500), 1/4 in (2000) and 3/8 in (3000) bodies. It regulates pressure only - no filtration or lubrication is performed. Flow figures are not published as a single rating, so we will confirm the datasheet numbers for your demand profile on request.
| Model | Airtac BR Air Pressure Regulator BR40004 |
|---|---|
| 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.
Step up to B-line 1/2 in PT when your main air supply needs the biggest compact-series port; smaller 1/8, 1/4 and 3/8 in versions exist for lighter duties. Size against required flow rather than guess - flow is not a single rating, so ask us to confirm it from the datasheet before ordering. Standard range is 0.05 to 0.9 MPa, with a low-pressure L type (up to 0.4 MPa) available for gentler circuits. The trailing 4 sets the gauge to kgf/cm2 and psi; scales 1 (MPa), 2 (psi) and 3 (bar) are also available, and a bracket is included by default. PT is the standard thread; G (BSPP) and NPT versions can be ordered.
Regulate the shop-air feed into a CNC machining centre's pneumatic circuit, giving tool changers and clamps a stable supply pressure behind the plant ring main.
Set consistent supply pressure to pneumatic valve actuators on a process skid so open and close strokes repeat with the same force every cycle.
Feed a workshop test bench that exercises air-brake components, holding a controlled reference pressure while gauges and leak checks are read.
There is no single published rated-flow figure for this regulator family, and we will not estimate one. Tell us your port size and duty and we will confirm the flow and sizing details straight from the AirTAC datasheet on request.
PT is the standard thread on this 1/2 in regulator. G (BSPP) and NPT versions of the same body are available to order, so you can match imperial or parallel-piped plant pipework - just specify the thread suffix when you enquire.