The AirTAC GC400-10ALF2GK AirTAC F.R.L. Combination, G3/8 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 AirTAC GC400-10ALF2GK is a three-piece F.R.L. combination: a separate air filter, a pressure regulator and an oil-mist lubricator, assembled as one size-400 unit with a G3/8 (3/8 in) port. In this configuration the filter carries the standard 40 um element with an automatic drain that ejects collected condensate without manual attention, the regulator is the low-pressure type for circuits set to reduced pressures, and the lubricator feeds oil mist downstream to pneumatic tools and cylinders. A square pressure gauge reading in psi is fitted, a reverse/check valve is included, and the polycarbonate bowls suit the -5 to 70 C (non-freezing) operating range with a maximum inlet pressure of 1.0 MPa (145 psi).
This is a genuine AirTAC part from the GC series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, thread options PT (standard), G and NPT, drain choices, 40 um or 5 um (W) filtration, gauge scales in MPa, psi or bar, and reverse/check valve options. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GC400-10ALF2GK AirTAC F.R.L. Combination, G3/8 |
|---|---|
| Series | GC400 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT3/8" (G (BSPP) thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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)). |
| L | Low-pressure 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. |
| G | G (BSPP) 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 |
Feeds filtered, regulated and lubricated air to pneumatic clamps and tool-changer actuators on a machining centre, with the check valve holding the clamp setting if shop air drops.
Supplies the cylinders and grippers on a carton-forming and palletizing conveyor, keeping moisture and scale out of the valves while the lubricator conditions the actuators.
A wall-mounted service point for impact wrenches and nutrunners on an assembly line, combining water removal, low-pressure regulation and oil-mist lubrication for the tools.
Size 400 with a G3/8 port sits in the middle of the GC range; step up to size 600 or down to 300/200 depending on the flow your line needs - we will confirm the flow curves against your demand on request. Drain type is a real choice: this unit has the automatic drain (code A), while manual (M) and differential-pressure (blank) variants exist if you prefer operator-controlled or supply-dependent draining. Filtration is the standard 40 um grade here; choose code W for 5 um where finer particle removal matters. The fitted square gauge reads in psi (scale 2); MPa and bar scales are available, and an external round gauge is optional. Thread: G is fitted on this code, with PT as the standard and NPT as an order option. The reverse/check valve (K) holds downstream pressure if the supply is interrupted. Because flow is published as curves, not a single rating, ask us to confirm sizing against your application before ordering.
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 characteristic curves rather than a single rated number, so we do not quote a rated flow, Cv or SCFM figure. Tell us your working pressure and air demand and we will confirm the flow from the datasheet curves for this exact model before you order.
The code GC40010ALF2GK decodes with A (automatic drain), so the filter bowl ejects condensate on its own instead of relying on manual draining or a differential-pressure trigger, which suits unattended lines. The K code means a reverse/check valve is fitted, holding downstream pressure if the upstream supply is interrupted. Manual-drain and no-valve variants are available if you prefer a different configuration.
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.