
The AirTAC GFC Combination Unit GFC300C10AF1K 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 See datasheet ports, a 40 µm element, a differential-pressure drain and regulation over 0.15 - 0.9 MPa (20 - 130 psi).
GFC300C10AF1K is a two-piece AirTAC G-series station - filter regulator plus lubricator for filtration, pressure regulation and oil-mist lubrication - with the K suffix adding a fitted reverse (check) valve. This configuration is size 300 with 3/8 in PT ports, the standard 40 um filter element, automatic drain, and the embedded square pressure gauge scaled in MPa. The standard-pressure regulator adjusts from 0.15 to 0.9 MPa (20-130 psi) with automatic drain, maximum inlet pressure is 1.0 MPa (145 psi), and the PC (polycarbonate) bowl on the filter-regulator suits compressed air at -5 to 70 C.
This is a genuine AirTAC part. The GFC two-unit concept runs across sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, all three drain types, 40 um or 5 um filtration, square or round gauges on MPa, psi or bar scales, G (BSPP) or NPT thread options, and the K check-valve option shown here. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures on request.
| Model | Airtac GFC Combination Unit GFC300C10AF1K |
|---|---|
| Series | GFC300 two-unit set |
| Composition | Filter regulator + lubricator (2 units) |
| Port size | See datasheet (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 — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
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.
| GFC300 | G-series two-unit set, 300 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. 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). |
| (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. |
| (blank) | No reverse-flow valve (the default). |
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-C1 filter regulator and GL300-C1 lubricator.
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 · See datasheet · 40 µm |
|---|---|
| One size down | GFC200 |
| One size up | GFC400 |
| Three-unit equivalent | GC300-C1 |
| Build order | Filter regulator first, lubricator last |
Pilot-air take-offs feeding process valve positioners on a plant line stay pressurised in one direction - the fitted check valve supports that while the set delivers clean, regulated, lubricated pilot air.
Air-powered dock levelers and restraint actuators at a loading bay run from a conditioned branch feed; this 3/8 in set filters to 40 um, regulates the working pressure and oils the actuators.
Pneumatic diverters along a parcel sortation conveyor cycle constantly; the automatic drain and standard element handle general-duty air while the regulator and square MPa gauge hold the station setting.
Choose the K variant when you want reverse flow blocked at the regulator; otherwise the decode matches the plain AF1: size 300, 3/8 in PT ports, standard 40 um element, automatic drain and embedded square MPa gauge. The 40 um grade serves general cylinder and valve circuits; the W option gives 5 um where finer filtration is wanted. Match the port step (200/300/400/600) to the branch line and verify demand against the published flow curves. Drain choices are automatic (as here), manual or differential-pressure. PT thread is standard with G (BSPP) and NPT as catalogue options, and a bracket can be added. Since flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering.
Quick checklist
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-C1 filter regulator on its own.
We do not quote a single rated-flow number because AirTAC publishes flow for the GFC series as curves. Share your line pressure and air consumption and we will confirm the sizing from the datasheet on request.
The K version has a reverse (check) valve fitted, blocking reverse flow back toward the regulator - useful on shared or pilot circuits where backflow is unwanted. Otherwise the two are identical: 40 um element, automatic drain, square MPa gauge and 3/8 in PT ports.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.