The AirTAC GC400-10 AirTAC F.R.L. Unit, PT3/8, 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 PT3/8" ports, a 40 µm element, a automatic drain and regulates 0.15 - 0.9 MPa (20 - 130 psi).
The GC400-10 is a three-piece AirTAC F.R.L. combination: a separate filter, a pressure regulator and an oil-mist lubricator, assembled in the GC400 size with PT3/8 ports. In one installation it removes water and particulate from the compressed air down to 40 um, regulates downstream pressure within the 0.15-0.9 MPa (20-130 psi) adjustment range, and adds oil mist for the air tools and cylinders it feeds. This configuration carries an automatic drain on the filter bowl, so collected condensate is discharged without manual attention, and the regulator is fitted with an embedded square gauge scaled in psi. A reverse/check valve is also fitted, holding the set downstream pressure if the upstream supply is interrupted.
This is a genuine AirTAC part. The GC series is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, with thread options PT (standard on this unit), G or NPT, drain choices, 40 um or 5 um filtration, and gauge scale options. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). Flow figures are published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GC400-10 AirTAC F.R.L. Unit, PT3/8, Auto Drain |
|---|---|
| Series | GC400 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT3/8" (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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
|---|---|
| 10 | Port size PT3/8". This body offers 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 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. |
| K | Reverse-flow (reflux) valve fitted. |
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: GF400-10 filter, GR400-10 regulator and GL400-10 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 · PT3/8" · 40 µm |
|---|---|
| One size down | GC300 |
| One size up | GC600 |
| Two-unit equivalent | GFC400-10 |
| Build order | Filter → regulator → lubricator |
Feeding filtered, regulated and lubricated air to the tool-changer, clamps and air cylinders on a CNC machining centre, with the automatic drain handling condensate through long unattended shifts.
Supplying the pneumatic diverters, sealers and pusher cylinders on a carton packaging line, where the regulator holds a steady set pressure and the lubricator keeps the actuators running smoothly.
Installed at point-of-use drop legs in an assembly plant, conditioning the air for impact wrenches and air ratchets: 40 um filtration, regulated pressure on the psi gauge, and oil mist for tool life.
Choose the GC size by the port and flow step your line needs: this unit is size 400 with 3/8 inch PT ports; smaller and larger sizes step up or down from there. The filter grade is the 40 um standard element; if finer filtration is required, the W-coded 5 um option exists in the same series. Drain choice matters in practice: the automatic drain fitted here discharges condensate on its own, while manual and differential-pressure drain variants are available if you prefer controlled or demand-based discharge. The regulator is the standard type, adjustable 0.15-0.9 MPa (20-130 psi), with an embedded square gauge in psi; external round gauges and MPa or bar scales can be ordered instead. Thread is PT as standard, with G or NPT available as order options, and the mounting bracket is included.
Because flow is published as curves and not as a single rated figure, we do not quote a flow number here. Send us your application details and we will confirm the sizing 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 GR400-10 regulator with a GF400-10 filter on that branch.
AirTAC publishes flow for the GC series as curves rather than a single rated figure, so we do not quote a flow number for this unit. Tell us your line pressure and the air demand of the equipment it will feed, and we will confirm the sizing against the datasheet on request before you order.
The A in the code GC40010AF2K selects an automatic drain on the filter bowl, so condensate is discharged without manual draining. The K selects a reverse/check valve, which holds the regulated downstream pressure if the upstream air supply is interrupted. Both are order options in the GC series; manual-drain and no-check-valve variants are available if you prefer.
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.