The AirTAC GC400-15 AirTAC F.R.L. Combination, PT1/2, Low-Pressure 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 PT1/2" ports, a 40 µm element, a automatic drain and regulates 0.15 - 0.9 MPa (20 - 130 psi).
The GC series is AirTAC's three-unit F.R.L. combination: a separate air filter, pressure regulator and oil-mist lubricator assembled as one set. This GC400-15 is the size 400 unit with PT1/2 ports. The filter carries a 40 um element with an automatic drain, so collected water is expelled without manual attention. The regulator is the low-pressure type and is fitted with an embedded square gauge scaled in psi, and a reverse/check valve is included. The bowls are polycarbonate, and a mounting bracket is supplied.
This is a genuine AirTAC part. The GC family spans sizes 200, 300, 400 and 600, with drain types, filter grades (40 um standard, 5 um with code W), gauge scales in MPa, psi or bar, and G or NPT threads available to order. Max working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing. Rated flow is published as curves rather than a single figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GC400-15 AirTAC F.R.L. Combination, PT1/2, Low-Pressure |
|---|---|
| Series | GC400 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT1/2" (PT 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. |
|---|---|
| 15 | Port size PT1/2". 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. |
| (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: GF400-15 filter, GR400-15 regulator and GL400-15 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 · PT1/2" · 40 µm |
|---|---|
| One size down | GC300 |
| One size up | GC600 |
| Two-unit equivalent | GFC400-15 |
| Build order | Filter → regulator → lubricator |
Feeding clamps and fixtures on a machining centre: the filter strips water and swarf-laden condensate from the shop air, the low-pressure regulator holds a gentle, repeatable clamp force, and the lubricator mists the cylinder seals on every cycle.
Supplying the tuck, fold and seal cylinders on a cartoning line: clean, moisture-free air keeps the small-bore actuators from sticking, the regulator holds a stable setting across the shift, and oil mist extends seal life on high-cycle motion.
Conditioning the air drops at a woodshop spray booth: the 40 um filter and automatic drain keep water out of the finish, the regulator sets a controlled gun pressure, and the lubricator is isolated for the gun air path where oil-free air is taken off upstream.
Pick the size step (200 / 300 / 400 / 600) against the port and the flow your line needs - here size 400 with PT1/2. Drain options are differential-pressure (the default), automatic (this unit) or manual; automatic suits installations where the bowl is not easily reached. Filter grade is 40 um standard or 5 um with code W. The gauge is the embedded square type, with the scale selectable as MPa, psi (this unit) or bar. Thread is PT as standard; G (BSPP) and NPT are catalogue options to order. This is the low-pressure regulator variant, so confirm the exact adjustment range with us before ordering. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before you buy.
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 GR400-15 regulator with a GF400-15 filter on that branch.
AirTAC publishes flow for the GC series as performance curves rather than a single rated figure, so we do not quote one number. Send us your line pressure and the flow your application needs and we will confirm the sizing from the datasheet on request.
In the code GC40015ALF2K, the F2 means the embedded square gauge is scaled in psi (MPa and bar scales are also available), and the L marks the low-pressure regulator type. The exact adjustment range for the low-pressure variant is not published in the catalogue, so confirm it with us before ordering if your set pressure is critical.
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.