AirTAC GC300-08 FRL Unit (GC30008NK)
The AirTAC AirTAC GC300-08 FRL Unit (GC30008NK) 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 40 µm element, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi).
- TypeF.R.L. combination (3 units)
- Port sizePT1/4"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Bowl materialPC
- Pressure gaugeNot fitted
- 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 GC300-08 FRL Unit (GC30008NK)
GC30008NK is a genuine AirTAC G-series three-unit F.R.L. combination: a separate air filter, a pressure regulator and an oil-mist lubricator, sized 300 with a 1/4 inch PT (standard) port. The K suffix means a reverse (check) valve is fitted. The filter element is the standard 40 um grade with a differential-pressure drain, the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), and the max working pressure is 1.0 MPa (145 psi). No gauge is fitted, and the polycarbonate bowls suit -5 to 70 C (non-freezing) compressed air.
This is a genuine AirTAC part from the G series, which spans sizes 200, 300, 400 and 600 with PT, G (BSPP) or NPT thread options, gauge scales in MPa, psi or bar, and manual or automatic drain variants. Published flow data appears as curves rather than a single rated figure, so we confirm sizing and full datasheet figures on request before you order.
AirTAC GC300-08 FRL Unit (GC30008NK) Technical Specifications
| Model | AirTAC GC300-08 FRL Unit (GC30008NK) |
|---|---|
| Series | GC300 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Not fitted |
| 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 GC300-08 FRL Unit (GC30008NK)
| 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". |
| (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. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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: GF300-08 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" · 40 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 (GC30008NK) Is Used
Air-operated valve actuation skids
On a skid of pneumatically actuated process valves, this set with its built-in check valve conditions the pilot air supply, keeping filtration, regulated pressure and lubrication in one assembly.
Pneumatic press stations
At a small pneumatic press station, the F.R.L. set delivers clean, regulated, oiled air to the cylinder circuit, with the check valve built in as the code specifies.
Conveyor gate and stopper cylinders
Along a sorting conveyor, gate and stopper cylinders fed from this set get filtered, regulated and lubricated air, protecting seals from water and debris.
Is the AirTAC GC300-08 FRL Unit (GC30008NK) the Right Station?
Choose GC30008NK over the plain GC30008N when your specification calls for the built-in reverse (check) valve in the regulator section; otherwise the decode is identical - size 300, 1/4 inch PT port, 40 um element, differential-pressure drain, no gauge. If your flow demand is higher, step to size 400 (1/2 inch port).
Thread is PT as standard, with G (BSPP) and NPT as catalogue options; a bracket is included and a gauge with MPa, psi or bar scale can be ordered. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your air consumption 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
- ✓ 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 GR300-08 regulator with a GF300-08 filter on that branch.
AirTAC GC300-08 FRL Unit (GC30008NK) FAQ
AirTAC publishes flow for the GC series as performance curves, not as a single rated figure, so we do not quote one number. Send us your line pressure and air consumption and we will confirm the sizing and full datasheet figures on request before you order.
K indicates that a reverse (check) valve is fitted in this configuration. It is the only difference from the plain GC30008N - the size, port, drain, filter grade and regulator function are otherwise the same.
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Related AirTAC Air-Preparation Units
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