
The AirTAC AirTAC GFC400-15 Combination Unit (GFC40015AC1W) 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).
GFC40015AC1W is an AirTAC G-series two-unit air-preparation set for a 1/2 in PT line: a 400-size filter regulator paired with a matching lubricator, so one set removes water and particulate, holds a set working pressure and meters oil mist into the air stream. The A code sets an automatic drain on the polycarbonate filter bowl, the W code specifies the finer 5 um element instead of the standard 40 um, and C1 specifies the external round pressure gauge with an MPa scale. Regulating range with automatic drain is 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the set operates from -5 to 70 C.
This is a genuine AirTAC part. The G series is offered in 200, 300, 400 and 600 sizes, with differential-pressure, automatic or manual draining, 40 um standard or 5 um (W) filtration, MPa, psi or bar gauge scales, and PT as the standard thread with G (BSPP) and NPT as order options. AirTAC publishes flow for this series as curves rather than a single rating, so we confirm the datasheet figures and sizing on request.
| Model | AirTAC GFC400-15 Combination Unit (GFC40015AC1W) |
|---|---|
| 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 | 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 — round, MPa 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 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 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 |
Prep for the tool-change and clamp circuits of a CNC machining center: the 5 um element keeps fine contamination out of the machine's solenoid valves while the lubricator feeds the air cylinders.
Air supply for air-driven diaphragm pumps and spray equipment in a paint booth, where the 5 um grade is specified for cleaner air and the regulator sets the working pressure for atomizing.
Feeds the gripper and pusher cylinders of a case palletizer with filtered, regulated, lubricated air; the automatic drain keeps condensate out of the circuit without operator attention.
This 400 size carries a 1/2 in port: step to 200 or 300 for smaller ports or to 600 for larger mains, matched to the flow curve your demand needs. Draining is automatic (A); manual and differential-pressure drains are alternatives, and a manual drain widens the regulating range to 0.05-0.9 MPa (7-130 psi) from 0.15-0.9 MPa (20-130 psi). Here the W code selects the 5 um element instead of the 40 um standard - choose 5 um where finer protection of valves and equipment matters. Gauge scales are MPa, psi or bar, with the embedded square gauge as an alternative to this external round gauge. Thread is PT as standard, with G (BSPP) and NPT to order. Flow is published as curves, not one rated figure, so ask us to confirm sizing 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 G-series performance as flow curves rather than a single rated figure, so no one number is quoted here. Tell us your line pressure and air demand and we will confirm the flow and datasheet figures for this 1/2 in two-unit set on request.
The standard element is 40 um, suited to general plant air. Adding W to the model code specifies the finer 5 um element, chosen where precision valves or coating equipment need cleaner air. Both grades are available in this 400-size two-unit set.
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.