AirTAC GFC300-08 Combination Unit (GFC30008AF1WK)
The AirTAC AirTAC GFC300-08 Combination Unit (GFC30008AF1WK) 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 5 µm element, a automatic drain and regulation over 0.15 - 0.9 MPa (20 - 130 psi).
- TypeTwo-unit set (F.R. + L.)
- Port sizePT1/4"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- DrainAutomatic drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC GFC300-08 Combination Unit (GFC30008AF1WK)
The AirTAC GFC30008AF1WK is a two-unit air-treatment set for compressed air: a filter regulator plus a separate lubricator, covering filtration, pressure regulation and oil-mist lubrication at one station. Two options are built into this code: W for the finer 5 um filter element in place of the 40 um standard, and K for a reverse (check) valve that holds downstream pressure if the upstream supply is interrupted. It is size 300 with a 1/4 inch PT port, an automatic bowl drain and the embedded square gauge scaled in MPa; the 300-size bowls are polycarbonate (PC).
This is a genuine AirTAC part from the G series, which runs from size 200 to 600 with ports of 1/8 to 1 inch and PT, G (BSPP) or NPT threads. Maximum working pressure is 1.0 MPa (145 psi), the regulator adjusts 0.15-0.9 MPa (20-130 psi) on this automatic-drain version, and operating temperature is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so we confirm the datasheet figures for your circuit on request.
AirTAC GFC300-08 Combination Unit (GFC30008AF1WK) Technical Specifications
| Model | AirTAC GFC300-08 Combination Unit (GFC30008AF1WK) |
|---|---|
| Series | GFC300 two-unit set |
| Composition | Filter regulator + lubricator (2 units) |
| Port size | PT1/4" (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, MPa 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.
Model Code: AirTAC GFC300-08 Combination Unit (GFC30008AF1WK)
| 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). |
| F | Gauge shape: Square. 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. |
| 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.
Size Class & How It Differs From GC
- GFC200PT1/8" - PT1/4"
- GFC300PT1/4" - PT1/2"
- GFC400PT3/8" - PT1/2"
- GFC600PT3/4" - PT1"
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" · 5 µm |
|---|---|
| One size down | GFC200 |
| One size up | GFC400 |
| Three-unit equivalent | GC300-08 |
| Build order | Filter regulator first, lubricator last |
Where the AirTAC GFC300-08 Combination Unit (GFC30008AF1WK) Is Used
Air-spring and bag handling station
Conditions the air to an inflatable-bag handling or positioning station: the 5 um element protects the bag valves, the regulator sets inflation pressure, the lubricator serves the lift cylinders, and the check valve holds the setup through upstream air dips.
Maintenance-shop tool drops
Feeds the tool outlets of a maintenance workshop: filtered, regulated, lubricated air for grinders and drills, with the finer 5 um element for the air tools that need it and the reverse valve keeping receiver-backed circuits pressurized while the main supply is isolated.
Trailer brake-test rig supply
Conditions shop air feeding a trailer air-brake test bench, where the check valve holds test-circuit pressure between applied steps and the regulator sets the test pressures called out by the procedure.
Is the AirTAC GFC300-08 Combination Unit (GFC30008AF1WK) the Right Set?
This code bundles the two most common order-time options on the 300-size two-unit set: the W 5 um element for finer filtration than the standard 40 um, and the K reverse (check) valve to hold downstream pressure through upstream shutdowns. The rest decodes as size 300, 1/4 inch PT port, automatic drain and the embedded square gauge in MPa, with a round external gauge in psi or bar scale available instead. Manual- and differential-drain variants share the same 0.15-0.9 MPa regulation range. PT is the standard thread, with G and NPT as catalogue options. Flow is published as curves, not a single rated figure, so ask us to confirm sizing against your application before ordering.
Quick checklist
- ✓ Body size for your peak flow (PT1/4" here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Two-unit (GFC) or three-unit (GC) layout
- ✓ Oil mist acceptable downstream
Installation & Maintenance Notes
- check Install with the airflow arrow: filter regulator first, lubricator last.
- check Mount vertically, bowls down.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills; check the oil level.
- check Keep the set above freezing (-5 to +70 °C, unfreeze).
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.
AirTAC GFC300-08 Combination Unit (GFC30008AF1WK) FAQ
There is no single rated flow figure to quote: AirTAC publishes the flow data for the G series as performance curves. We will happily confirm the sizing from the datasheet on request if you send us your working pressure and the air demand of the tools or actuators downstream, before you commit to an order.
Functionally it covers the same three jobs, filtration, regulation and lubrication, but in two pieces: a filter regulator in one body plus a separate lubricator, which shortens the assembly compared with the three-piece GC set of individual filter, regulator and lubricator. If your layout needs the units spaced apart or serviced independently, the three-unit GC combination is the alternative; if footprint matters, this GFC two-unit set is the compact choice.
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