The AirTAC GC400C15AC2GK AirTAC F.R.L. Combination G1/2 Auto Drain is a genuine G-series three-unit F.R.L. combination: a separate filter, a separate regulator and a separate lubricator assembled as one air-preparation station. It has See datasheet ports, a 40 µm element, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi).
The GC400C15AC2GK is a three-piece AirTAC GC-series F.R.L. combination: a separate air filter, pressure regulator and oil-mist lubricator assembled as one filtered, regulated and lubricated air supply point. This unit is built for 1/2 in ports with G (BSPP) threads, carries the standard 40 um filter element, and the filter bowl drains automatically, so collected condensate is ejected without manual intervention. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), an external round gauge with a psi scale is fitted for setting and monitoring downstream pressure, and a reverse/check valve is fitted to hold the circuit against backflow. A mounting bracket is included for panel or frame installation.
This is a genuine AirTAC part. The GC series is offered in sizes 200, 300, 400 and 600 with matching port sizes, a choice of differential-pressure, automatic or manual bowl drains, a 5 um (code W) filter element option, gauge scale choices of MPa, psi or bar, and PT, G or NPT threads. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing). Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GC400C15AC2GK AirTAC F.R.L. Combination G1/2 Auto Drain |
|---|---|
| Series | GC400 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). The combination has no separate bracket code — the three units couple together with their own mounting hardware. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GC400 | G-series F.R.L. combination, 400 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
Field order is size, port, drain, type, gauge, shape, scale, grade, thread, reflux — there is no bracket position on a combination. Constituent units, orderable separately as spares: GF400-C1 filter, GR400-C1 regulator and GL400-C1 lubricator.
A GC is three separate units, so the filter and the regulator can each be serviced or replaced on their own. A GFC is the two-unit set, where filtering and regulating share one body — shorter, but the two functions come as one part. Both filter, regulate and lubricate.
| This model | GC400 · See datasheet · 40 µm |
|---|---|
| One size down | GC300 |
| One size up | GC600 |
| Two-unit equivalent | GFC400-C1 |
| Build order | Filter → regulator → lubricator |
Feeding clean, regulated and lubricated air to the tool-clamp and pallet-change cylinders on a CNC machining centre, with the round psi gauge letting setters verify clamp pressure at the machine.
Conditioning the air feeding gripper and divertor cylinders on a carton packaging conveyor, where the automatic drain handles condensate on a line that runs unattended across shifts.
Installed as the point-of-use F.R.L. on a 1/2 in distribution drop in a factory air ring main, filtering water and particulate, holding a set pressure and metering oil mist to downstream valves and cylinders.
Start with the size and port step: GC units come in sizes 200, 300, 400 and 600, and the port grows with the size, so pick the size whose port and flow capacity match the line - this unit is the size 400 with a 1/2 in G-threaded port. Then choose the drain: differential-pressure (default), automatic, or manual; this configuration uses an automatic drain, which suits unattended or hard-to-reach installations. Choose the filter grade - 40 um is standard, 5 um (code W) protects finer downstream components. Select the gauge and its scale (MPa, psi or bar), the thread (PT is standard; G and NPT are order options), and whether a mounting bracket is needed. One honest note on sizing: flow is published as curves, not a single rated number, so send us your application details and we will confirm the right size against the datasheet before you order.
Quick checklist
The PC bowls must not be cleaned with solvents — wipe them with a dry cloth. The lubricator adds an oil mist downstream of the regulator. If any branch of the line must stay oil-free, take that branch off before the lubricator, or use a GR400-C1 regulator with a GF400-C1 filter on that branch.
AirTAC publishes flow for the GC series as curves, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Send us your line pressure, downstream demand and application details, and we will confirm the flow figures and correct sizing from the datasheet on request.
The A in the code specifies an automatic drain on the filter bowl, which ejects collected condensate without anyone having to open the drain - useful for unattended or hard-to-access installations. The GC series is also available with a differential-pressure drain (the default) or a manual drain (code M) if you prefer to control draining yourself.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.