AirTAC GFC300-15 Combination Unit (GFC30015MF1WK)
The AirTAC AirTAC GFC300-15 Combination Unit (GFC30015MF1WK) 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 manual drain and regulation over 0.05 - 0.9 MPa (7 - 130 psi).
- TypeTwo-unit set (F.R. + L.)
- Port sizePT1/2"
- Regulating range0.05 - 0.9 MPa (7 - 130 psi)
- Filtering grade5 µm
- DrainManual 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 GFC300-15 Combination Unit (GFC30015MF1WK)
The AirTAC GFC two-unit set combines a filter regulator and a lubricator so one unit filters, regulates and lubricates the compressed air supply. This 300-size configuration is specified for a PT1/2 port, manual bowl drain, a fine 5 um element, an embedded square MPa gauge, and the K suffix adds a reverse (check) valve that holds downstream pressure if the upstream supply is interrupted or drops.
This is a genuine AirTAC part. The GFC series spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, plus options for drain type, 40 um or 5 um filtration, gauge style and scale, thread (PT standard, G and NPT available) and the check-valve K suffix. Maximum working pressure is 1.0 MPa (145 psi); temperature range -5 to 70 C, non-freezing. Flow is published as curves, not a single rating, so we confirm flow and datasheet figures on request.
AirTAC GFC300-15 Combination Unit (GFC30015MF1WK) Technical Specifications
| Model | AirTAC GFC300-15 Combination Unit (GFC30015MF1WK) |
|---|---|
| Series | GFC300 two-unit set |
| Composition | Filter regulator + lubricator (2 units) |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual 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 0.05 - 0.9 MPa (7 - 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 GFC300-15 Combination Unit (GFC30015MF1WK)
| 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 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: GFR300-15 filter regulator and GL300-15 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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFC200 |
| One size up | GFC400 |
| Three-unit equivalent | GC300-15 |
| Build order | Filter regulator first, lubricator last |
Where the AirTAC GFC300-15 Combination Unit (GFC30015MF1WK) Is Used
Pneumatic clamping on machining fixtures
Keeping clamp cylinders on a machining fixture pressurised if the main air supply dips: the check valve holds the regulated downstream side while the 5 um element protects the clamp valves.
Conveyor stop-and-gate circuits
Conditioning air for gating and diverting cylinders on a bottling conveyor, where the check valve prevents backflow-induced pressure loss and the lubricator keeps the cylinders running smoothly.
Diaphragm pump supply line
Filtering, regulating and lubricating the air feeding an air-operated double-diaphragm pump on a chemical transfer skid, with the check valve protecting the set-up from supply-side pressure collapse.
Is the AirTAC GFC300-15 Combination Unit (GFC30015MF1WK) the Right Set?
Choose the K suffix when a supply failure must not dump the regulated downstream pressure - useful on clamping circuits and process lines where losing pressure mid-cycle is costly. The 300 size with a 1/2 in PT port fits standard medium-duty plant drops; move to 400 or 600 for higher demand. Manual drain (M) suits attended areas; pick A or blank differential-pressure drain for unattended points. The W code gives 5 um filtration instead of the 40 um standard. Gauge is the embedded square type with MPa scale; round gauges with psi or bar scales are orderable.
Because flow appears only as curves in the catalogue, ask us to check this set against your air demand before ordering.
Quick checklist
- ✓ Body size for your peak flow (PT1/2" 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 0.05 - 0.9 MPa (7 - 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 GFR300-15 filter regulator on its own.
AirTAC GFC300-15 Combination Unit (GFC30015MF1WK) FAQ
AirTAC publishes flow for this set as curves against pressure and port size rather than one rated figure, so quoting a single number would be guesswork. Tell us your operating pressure and air demand and we will confirm the fit from the datasheet on request.
K specifies that a reverse (check) valve is fitted, so downstream pressure is held if the upstream supply fails or drops. The rest of the code decodes as: 300 size, 1/2 in PT port, M manual drain, F1 embedded square gauge with MPa scale, and W 5 um filter element.
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