
The AirTAC AirTAC GFC400-15 Combination Unit (GFC40015ALNW) is a genuine G-series two-unit air-preparation set: a filter regulator that filters and regulates in one body, coupled to a lubricator. Two bodies do the work of three, with PT1/2" ports, a 5 µm element, a automatic drain and regulation over 0.15 - 0.9 MPa (20 - 130 psi).
The AirTAC GFC series is a two-unit air-treatment set: a filter-regulator paired with a lubricator, so one assembly removes water and particulate, holds a set downstream pressure and meters oil mist into the air line. This unit is size 400 with a PT1/2 port (PT thread is the standard; G and NPT are catalogue options), an automatic drain on the filter bowl so condensate is discharged without operator attention, the optional 5 um filter element (code W) in place of the 40 um standard, and no gauge fitted (code N). It is the low-pressure (L) type, intended for reduced outlet settings; confirm its exact low-pressure adjustment range with us on request.
This is a genuine AirTAC part. Maximum working pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing); the size 400 filter bowl is PC (polycarbonate). Across the G series you can step size and port from 200 to 600, choose differential-pressure, automatic or manual drains, order the 40 um standard element or the 5 um (W) option, add gauge and bracket options and select PT, G (BSPP) or NPT threads. Flow for this size is published as curves rather than a single rated figure, so we confirm datasheet and sizing values on request.
| Model | AirTAC GFC400-15 Combination Unit (GFC40015ALNW) |
|---|---|
| Series | GFC400 two-unit set |
| Composition | Filter regulator + lubricator (2 units) |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 5 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 | Not fitted |
| 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. The set has no separate bracket code — the two 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.
| GFC400 | G-series two-unit set, 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. |
| N | No pressure gauge (N). |
| (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. |
| W | Filtering grade 5 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 set. Constituent units, orderable separately as spares: GFR400-15 filter regulator and GL400-15 lubricator.
A GFC is two units because filtering and regulating share one body. A GC is three separate units — filter, regulator and lubricator. Both filter, regulate and lubricate; the GFC is the shorter assembly, the GC keeps the filter and regulator serviceable as separate bodies.
| This model | GFC400 · PT1/2" · 5 µm |
|---|---|
| One size down | GFC300 |
| One size up | GFC600 |
| Three-unit equivalent | GC400-15 |
| Build order | Filter regulator first, lubricator last |
Treating air to the pneumatic actuators of an automated pipetting and plate-handling station, where the 5 um element cuts finer particles than the 40 um standard ahead of the lab's small control valves.
Regulating and lubricating air to swing clamps on a machining-centre fixture table; the 5 um element suits the compact clamping valves and the low-pressure type keeps clamp pressure settings gentle.
Feeding the valve manifold of a carton-erecting machine on a packaging line; filtered, regulated air at a low set pressure drives the folding cylinders, with the 5 um element protecting the machine's control valves.
Real choices in this family: step the size and port (200/300/400/600; here 400 with a PT1/2 port) against the flow your line needs; pick the drain - automatic on this unit, with differential-pressure (default) and manual also available; the W here has already selected the finer 5 um element over the 40 um standard; thread is PT as the standard with G (BSPP) and NPT orderable; and a gauge can be specified since none is fitted. The low-pressure (L) type suits reduced outlet settings - confirm its range with us. Flow is published as curves, not one rating, so 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, so if any branch must stay oil-free, take that branch off before the lubricator or use a GFR400-15 filter regulator on its own.
AirTAC publishes flow for the G series as curves rather than a single rated figure, so no one number is quoted here. Give us your line pressure, set pressure and demand and we will confirm the sizing from the datasheet on request.
The W in GFC40015ALNW selects the optional 5 um element instead of the 40 um standard. Choose 5 um where downstream valves, cylinders or processes are more particle-sensitive; the standard 40 um element suits general plant air duty.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.