
The AirTAC AirTAC GFC300-08 Combination Unit (GFC30008AC3K) 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 PT1/4" ports, a 40 µm element, a automatic drain and regulation over 0.15 - 0.9 MPa (20 - 130 psi).
The AirTAC GFC set is a two-piece combination: a filter regulator plus a lubricator, covering filtration, regulation and lubrication of compressed air without buying three separate units. This GFC30008AC3K is the 300 size with PT1/4 ports, the standard 40 um filter element, an automatic drain, a check (reverse) valve in the regulator section, and a round gauge reading in bar. With a standard-grade element it is the economical choice where general air cleanliness is enough and the check valve protects the downstream setting.
This is a genuine AirTAC part from the G series range of 200, 300, 400 and 600 sizes, with options for filter grade, drain type, gauge scale and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi), operating temperature is -5 to 70 C, and the automatic drain version regulates across 0.15 to 0.9 MPa (20 to 130 psi). Flow is published only as curves, so we confirm datasheet figures on request.
| Model | AirTAC GFC300-08 Combination Unit (GFC30008AC3K) |
|---|---|
| Series | GFC300 two-unit set |
| Composition | Filter regulator + lubricator (2 units) |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 40 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, bar 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. 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. |
|---|---|
| 08 | Port size PT1/4". 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 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 set. Constituent units, orderable separately as spares: GFR300-08 filter regulator and GL300-08 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 · PT1/4" · 40 µm |
|---|---|
| One size down | GFC200 |
| One size up | GFC400 |
| Three-unit equivalent | GC300-08 |
| Build order | Filter regulator first, lubricator last |
Feeds the divert and stopper cylinders on a distribution-centre conveyor, where the check valve holds the set pressure through supply dips and the automatic drain copes with condensate on long running hours.
Provides treated air to the auxiliary pneumatics on an injection moulding machine - ejector and core-pull cylinders - with lubrication for cylinder life and a bar gauge matching European-style panel instruments.
Conditions the supply to pneumatic quarter-turn valve actuators on a process skid, keeping general-purpose air clean to 40 um and the actuator pressure steady behind the check valve.
This 300-size, 1/4-inch PT configuration suits general machine air; go to 400 or 600 for higher demand or 200 for tight panels. The 40 um element here is the standard grade, adequate for most cylinder and valve supply, while the 5 um W-code element is the finer choice. The check valve (K code) holds downstream pressure against upstream loss; the automatic drain means no manual bowl attention, and bar-scale, MPa or psi gauges with G or NPT threads are all orderable. Since catalogue flow is curves rather than a rating, ask us to confirm sizing from the datasheet before you order.
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 GFR300-08 filter regulator on its own.
Flow for the G series is published as characteristic curves, not a single rated number, so we do not quote one figure. Send your line pressure and air consumption and we will confirm the datasheet flow figures for the GFC30008AC3K on request.
K means a reverse (check) valve is fitted in the regulator section, so downstream pressure is retained if the upstream supply fails or drops. The rest of this configuration is the 300 size, PT1/4 ports, 40 um standard element, automatic drain and a bar-scale round gauge.
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.