
The AirTAC AirTAC GFC300-15 Combination Unit (GFC30015AF3W) 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 GFC30015AF3W is an AirTAC G-series two-unit air preparation set: a 300-size filter regulator paired with a separate lubricator, so filtration, pressure regulation and oil-mist lubrication are covered in two pieces. This configuration is drilled for 1/2 inch ports on standard PT thread, has an automatic drain that expels condensate from the filter bowl without operator attention, a 5 um element for finer filtration than the standard 40 um, and a square gauge reading in bar.
It is a genuine AirTAC part, rated for a maximum working pressure of 1.0 MPa (145 psi) and -5 to 70 C non-freezing operation; on the 300 size both the filter-regulator and lubricator bowls are polycarbonate. The G series runs from size 200 to 600 with a choice of drain types, 40 um or 5 um filtration, gauge styles and scales, and PT, G or NPT threads. Because flow is published as curves rather than a single rating, we confirm flow and datasheet figures for your application on request.
| Model | AirTAC GFC300-15 Combination Unit (GFC30015AF3W) |
|---|---|
| Series | GFC300 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 — square, bar 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.
| GFC300 | G-series two-unit set, 300 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 08 = PT1/4", 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. |
| 3 | Gauge scale: bar. 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: GFR300-15 filter regulator and GL300-15 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 | GFC300 · PT1/2" · 5 µm |
|---|---|
| One size down | GFC200 |
| One size up | GFC400 |
| Three-unit equivalent | GC300-15 |
| Build order | Filter regulator first, lubricator last |
Feeds dry, regulated, lubricated air to the tool-changer clamps, chip augers and spindle air-seal circuit of a machining center, with the 5 um element protecting fine pilot valves from condensate carryover.
Prepares plant air for pick-and-place grippers, pneumatic screwdrivers and clamping fixtures in a robot assembly cell, keeping the regulator set point visible on the bar dial at the cell panel.
Supplies capping heads, pusher cylinders and diverters on a bottling line, where the automatic drain handles condensate from humid compressor air without a maintenance walk-round.
At 1/2 inch PT this 300-size set suits lines whose demand has outgrown 1/4-inch or 3/8-inch units; step down to size 200 with a smaller port if consumption is modest. With the automatic drain, the regulator adjusting range is 0.15-0.9 MPa (20-130 psi); a manual-drain variant would widen the low end to 0.05-0.9 MPa (7-130 psi). The trailing W selects 5 um filtration instead of the standard 40 um, and F3 specifies the square gauge in bar; round external gauges and MPa or psi scales are also orderable. Thread stays PT unless you order the G (BSPP) or NPT option. Flow is published as curves, not a single 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 GFR300-15 filter regulator on its own.
AirTAC publishes G-series performance as flow curves, not as a single rated number, so we do not quote a rated flow. Send us your working pressure and air consumption and we will confirm the right size from the datasheet curve before you order.
W selects the 5 um filter element instead of the standard 40 um. The bowl and automatic drain work the same either way; choose 5 um when finer pilot valves or instruments sit downstream. We can confirm element details from the datasheet on request.
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.