AirTAC GC300-15 FRL Unit (GC30015F1K)
The AirTAC AirTAC GC300-15 FRL Unit (GC30015F1K) is a genuine G-series three-unit F.R.L. combination: a separate filter, a separate regulator and a separate lubricator assembled as one air-preparation station. It has PT1/2" ports, a 40 µm element, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi).
- TypeF.R.L. combination (3 units)
- Port sizePT1/2"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
About the AirTAC GC300-15 FRL Unit (GC30015F1K)
The GC30015F1K is an AirTAC G-series three-unit F.R.L. combination - separate filter, regulator and lubricator as one 3-piece set - with a reverse (check) valve fitted in the regulator section, as denoted by the K in the code. The check valve holds the downstream circuit against backflow. This configuration is size 300 with PT1/2 ports, standard 40 um filter element, differential-pressure drain on the filter bowl, and embedded square gauge reading in MPa; with differential-pressure draining the regulator range is 0.15-0.9 MPa (20-130 psi).
This is a genuine AirTAC part. The G-series combination comes in sizes 200, 300, 400 and 600 with PT, G (BSPP) or NPT threads, drain, filter-grade (40 um standard, 5 um optional), gauge-scale and check-valve options; maximum working pressure is 1.0 MPa (145 psi) and temperature range is -5 to 70 C, non-freezing. Flow is published as curves, not a single rating, so we confirm datasheet and flow figures on request.
AirTAC GC300-15 FRL Unit (GC30015F1K) Technical Specifications
| Model | AirTAC GC300-15 FRL Unit (GC30015F1K) |
|---|---|
| Series | GC300 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT1/2" (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 | Differential-pressure 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 combination has no separate bracket code — the three 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 GC300-15 FRL Unit (GC30015F1K)
| GC300 | G-series F.R.L. combination, 300 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure 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. |
| (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. Constituent units, orderable separately as spares: GF300-15 filter, GR300-15 regulator and GL300-15 lubricator.
Size Class & How It Differs From GFC
- GC200PT1/8" - PT1/4"
- GC300PT1/4" - PT1/2"
- GC400PT3/8" - PT1/2"
- GC600PT3/4" - PT1"
A GC is three separate units, so the filter and the regulator can each be serviced or replaced on their own. A GFC is the two-unit set, where filtering and regulating share one body — shorter, but the two functions come as one part. Both filter, regulate and lubricate.
| This model | GC300 · PT1/2" · 40 µm |
|---|---|
| One size down | GC200 |
| One size up | GC400 |
| Two-unit equivalent | GFC300-15 |
| Build order | Filter → regulator → lubricator |
Where the AirTAC GC300-15 FRL Unit (GC30015F1K) Is Used
Pneumatic press holding circuits
Supplying a pneumatic press where the fitted check valve helps hold downstream pressure in the clamping circuit if upstream supply is interrupted mid-cycle.
Textile machine actuator banks
Conditioning air for the many small cylinders on textile machinery, where the 40 um element, stable regulation and oil-mist lubrication keep high-cycle actuators running.
Workshop air-tool ring feed
Feeding a workshop air-tool circuit from a compressor ring main, filtering, regulating and lubricating the supply with a check valve between the set and the upstream shut-off.
Is the AirTAC GC300-15 FRL Unit (GC30015F1K) the Right Station?
Choose the K variant of this size 300, PT1/2 set when the downstream circuit must be held against supply-side pressure loss or backflow - for example on circuits that must not dump when the main is shut off. Otherwise the decode matches GC30015F1: standard 40 um element (add W for 5 um), differential-pressure drain as default with manual (M) and automatic (A) codes available, and the embedded square MPa gauge with psi and bar scale alternatives. Thread is PT as standard; G (BSPP) and NPT versions and the mounting bracket are orderable catalogue options. Step to size 200 or 400/600 if the flow curve for size 300 sits above or below your demand.
Because flow appears only as curves in the catalogue, ask us to confirm sizing for your application 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
- ✓ Three-unit (GC) or two-unit (GFC) layout
- ✓ Oil mist acceptable downstream
Installation & Maintenance Notes
- check Install with the airflow arrow: filter 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 station 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 of the regulator. If any branch of the line must stay oil-free, take that branch off before the lubricator, or use a GR300-15 regulator with a GF300-15 filter on that branch.
AirTAC GC300-15 FRL Unit (GC30015F1K) FAQ
Flow for the G-series is published by AirTAC as curves rather than a single rated figure, so no rated number is stated here. Share your working pressure and air demand and we will confirm the flow figures from the datasheet for this size 300, PT1/2 set with check valve.
K denotes a reverse (check) valve fitted in the regulator section, allowing downstream flow to be held against backflow - useful on circuits that must retain pressure if the upstream supply drops. The non-K code GC30015F1 is the same size 300, PT1/2, 40 um, square MPa-gauge set without the valve.
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