Airtac BC Series Air Treatment Combination (Filter Regulator Lubricator) BC4000A1
Genuine AirTAC three-unit frl, order code BC4000A1 from the AC-BC range. The options this code selects are decoded below; series data follow the official AirTAC catalog.
- Model and portBC4000 · PT1/2
- Drain · typeAuto drain (A) · Standard, max 0.9 MPa
- Gauge · element · threadGauge in MPa · 40 µm element · PT thread
- ModelsAC1500, AC2000, BC2000, BC3000, BC4000
- PortAC1500: PT1/8, AC2000: PT1/4, BC2000: PT1/4, BC3000: PT3/8, BC4000: PT1/2
- ThreadPT (standard), G, NPT (T)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac BC Series Air Treatment Combination (Filter Regulator Lubricator) BC4000A1
The BC4000A1 is the largest three-unit preparation set in AirTAC's B-line, combining the BF4000C filter, BR4000C regulator and BL4000C lubricator on PT1/2 ports. The A in the code enables the automatic drain on the filter bowl, which holds 60 cc of condensate, while the trailing 1 selects the factory-fitted GS40 gauge scaled in MPa. Regulating range is 0.15 - 0.9 MPa (20 - 130 psi) with a maximum operating pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi).
This code keeps the standard 40 um filter element and PT thread, so it suits plants that size air lines by 1/2 ports and prefer reading pressure directly in MPa on AirTAC's home market convention. The lubricator carries 90 cc of ISO VG32 turbine oil, and the whole set operates from -5 to 70 C with no freezing.
Airtac BC Series Air Treatment Combination (Filter Regulator Lubricator) BC4000A1 Technical Specifications
| Order code | BC4000A1 |
|---|---|
| Product | Three-Unit FRL |
| Model and port | BC4000 · PT1/2 |
| Drain · type | Auto drain (A) · Standard, max 0.9 MPa |
| Gauge · element · thread | Gauge in MPa · 40 µm element · PT thread |
| Models | AC1500, AC2000, BC2000, BC3000, BC4000 |
|---|---|
| Port | AC1500: PT1/8, AC2000: PT1/4, BC2000: PT1/4, BC3000: PT3/8, BC4000: PT1/2 |
| Thread | PT (standard), G, NPT (T) |
| Filter element | 40 µm (standard), 5 µm (W) |
| Drain bowl capacity | A1500/A2000: 15 cc · B2000/B3000: 40 cc · B4000: 60 cc |
| Lubricator capacity | A1500/A2000: 25 cc · B2000/B3000: 60 cc · B4000: 90 cc |
| Components | AF1500C filter + AR1500C regulator + AL1500C lubricator; AF2000C filter + AR2000C regulator + AL2000C lubricator; BF2000C filter + BR2000C regulator + BL2000C lubricator; BF3000C filter + BR3000C regulator + BL3000C lubricator; BF4000C filter + BR4000C regulator + BL4000C lubricator |
| Fluid | Air |
| Regulating range | 0.15 – 0.9 MPa (20 – 130 psi) |
| Low-pressure (L) version | up to 0.4 MPa (58 psi) |
| Maximum pressure | 1.0 MPa (145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -5 to +70 °C (no freezing) |
| Recommended oil | ISO VG32 turbine oil |
| Gauge | GS40 on gauge versions |
Source: AirTAC AC/BC series datasheet (p.274, 2025-11 edition, airtac.com), ordering code and specifications.
How to choose
Choose BC4000A1 when you need the 1/2-size B-line body, want condensate removed automatically (codes without A use differential plus manual draining), and prefer the MPa-scale gauge. Pick BC4000A1W if the 40 um element is too coarse for your downstream valves, BC4000A3WG for G threads with a bar gauge, or BC4000A1N to order the same unit without the gauge. For smaller flows, BC3000 on PT3/8 ports is the next B-line size down.
Applications
Main air supply for 1/2 lines
Filtering, regulating and oiling the plant air header on PT1/2 pipework, with the automatic drain clearing the 60 cc bowl without operator rounds.
Heavy pneumatic circuits
Feeding large cylinders and actuators where the MPa-scale gauge lets technicians set working pressure directly against a 0.15 - 0.9 MPa spec.
Unattended compressor rooms
Installation near the receiver where manual drain access is awkward; the A option removes condensate automatically within the -5 to 70 C envelope.
FAQ
What are the key figures of the BC4000A1?
PT1/2 ports, BF4000C filter + BR4000C regulator + BL4000C lubricator, automatic drain, 60 cc drain bowl, 90 cc lubricator capacity, 40 um element, MPa-scale GS40 gauge, regulating range 0.15 - 0.9 MPa (20 - 130 psi), max pressure 1.0 MPa (145 psi), proof pressure 1.5 MPa (215 psi), -5 to 70 C.
Why does the gauge read in MPa on this code?
The trailing digit 1 in the ordering code selects the MPa gauge scale (2 is psi, 3 is bar, 4 is kgf/cm2 and psi). On PT-threaded units, catalog guidance is to use scale 1 or 4, so the A1 code pairs the MPa gauge with the standard PT thread.