AirTAC GC300-08 FRL Unit (GC30008MLC1WK)
The AirTAC AirTAC GC300-08 FRL Unit (GC30008MLC1WK) 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 PT1/4" ports, a 5 µm element, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi).
- TypeF.R.L. combination (3 units)
- Port sizePT1/4"
- Regulating range0.05 - 0.9 MPa (7 - 130 psi)
- Filtering grade5 µm
- DrainManual drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
About the AirTAC GC300-08 FRL Unit (GC30008MLC1WK)
GC30008MLC1WK is an AirTAC G-series three-unit F.R.L. combination: a separate air filter, pressure regulator and lubricator built into one 300-size set. The W selects the finer 5 um filter element, and the K means a reverse (check) valve is fitted in this configuration. This 1/4 in PT-threaded unit is the low-pressure (L) type, has a manual drain on the filter bowl, and carries an external round pressure gauge scaled in MPa. On this 300 size the bowl is polycarbonate (PC). Medium is compressed air, with a maximum working pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The G series runs from size 200 through 600 with a choice of ports, drain types, filter grades, gauge styles and scales, and G (BSPP) or NPT thread options; the check valve is an optional extra selected with the K code. The standard manual-drain regulator adjusts 0.05-0.9 MPa (7-130 psi); as the low-pressure (L) variant this set is intended for lower setting pressures, so confirm the exact range with us. Flow is published as curves rather than a single rating, so ask us to confirm datasheet figures for your application.
AirTAC GC300-08 FRL Unit (GC30008MLC1WK) Technical Specifications
| Model | AirTAC GC300-08 FRL Unit (GC30008MLC1WK) |
|---|---|
| Series | GC300 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT1/4" (PT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Low-pressure 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 — round, 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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 GC300-08 FRL Unit (GC30008MLC1WK)
| GC300 | G-series F.R.L. combination, 300 body — sets the port range. |
|---|---|
| 08 | Port size PT1/4". 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)). |
| L | Low-pressure 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. |
| 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. Constituent units, orderable separately as spares: GF300-08 filter, GR300-08 regulator and GL300-08 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 · PT1/4" · 5 µm |
|---|---|
| One size down | GC200 |
| One size up | GC400 |
| Two-unit equivalent | GFC300-08 |
| Build order | Filter → regulator → lubricator |
Where the AirTAC GC300-08 FRL Unit (GC30008MLC1WK) Is Used
Pneumatic circuit with check function
Serves a control circuit where a check valve is wanted in the air-prep line itself, combining 5 um filtration, low-pressure regulation and lubrication in one 1/4 in set.
Textile machine air supply
Prepares air for the cylinder and jet circuits of a textile weaving machine, with the manual-drain bowl serviced during shift changeovers.
Maintenance workshop bench outlet
Feeds a maintenance bench drop for air tools and test rigs, with the lubricator keeping tool motors oiled and the round MPa gauge letting technicians set pressure quickly.
Is the AirTAC GC300-08 FRL Unit (GC30008MLC1WK) the Right Station?
Match size and port to the job: the 300 series on a 1/4 in PT port serves lighter-duty circuits, while 200, 400 and 600 sizes step the port and flow capacity down or up. This is the low-pressure (L) type for lower setting pressures - confirm the adjustment range with us before ordering. The W code brings the 5 um filter element in place of the standard 40 um grade, and the K code adds a reverse (check) valve for circuits where you want the check function built into the set; confirm its behaviour in your circuit with us. The drain is manual (M), so the bowl is emptied by hand, with differential-pressure or automatic (A) draining available instead. Gauge is this external round type (C) in MPa scale, with square (F) and psi or bar scales as options, and G (BSPP) or NPT threads orderable in place of PT. Flow is published as curves, not a single rating, so let us confirm sizing before you order.
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
- ✓ 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 0.05 - 0.9 MPa (7 - 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 GR300-08 regulator with a GF300-08 filter on that branch.
AirTAC GC300-08 FRL Unit (GC30008MLC1WK) FAQ
AirTAC publishes G-series flow as performance curves, not as a single rated number, so we do not quote one here. Give us your working pressure and air demand and we will confirm the flow from the datasheet before you order.
K indicates that a reverse (check) valve is fitted in this configuration; the same set without K has no check valve. If you need to know exactly how the check function behaves in your circuit, ask us and we will confirm it from the AirTAC documentation.
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