The AirTAC GFR30010AC2G AirTAC Filter Regulator G3/8, Auto Drain is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" ports, a automatic drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR30010AC2G is a 300-size filter regulator that removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration has a G3/8 (BSPP) port, an automatic drain that expels collected condensate without manual attention, a 40 um standard filter element, and a round pressure gauge reading in psi. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator adjusts from 0.15-0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl suits the 300 size, and the mounting bracket is included.
This is a genuine AirTAC part. The GFR filter-regulator line is available in 200, 300, 400 and 600 sizes with port options from 1/8 to 1 inch, PT as standard and G or NPT as order options, plus automatic, manual or differential-pressure drains, a 5 um element (code W), and MPa, psi or bar gauge scales. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR30010AC2G AirTAC Filter Regulator G3/8, Auto Drain |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (G (BSPP) thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, psi 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). Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic 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) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR300 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Clean, regulated air feeding the cylinders of a bench-mounted pneumatic press, with the automatic drain handling condensate during continuous shift running.
Air preparation for the diverters, stoppers and pusher cylinders along a packaging conveyor, where the 40 um element protects valves from water and debris.
A filtered, regulated supply point at a machine drop leg in a factory air ring main, with the psi gauge giving operators a local setpoint readout.
Size and port set the capacity: the 300 size with its G3/8 port is the middle step of the GFR range (200/300/400/600), so step up or down according to the air demand of the circuit rather than the pipe alone. Drain choice matters in use: the automatic drain on this unit suits unattended or hard-to-reach installations, while manual and differential-pressure drains are the other catalogue options. The 40 um element is standard; specify the 5 um W option where finer particulate removal is needed. The round psi gauge is fitted here; embedded square gauges and MPa or bar scales are alternatives. G (BSPP) is this unit's thread; PT is standard and NPT is an order option, and a bracket is included.
Flow for GFR units is published as curves, not a single rated number, so we do not quote a rated flow figure. Send us your application's air demand and we will confirm sizing against the datasheet before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for GFR filter regulators as curves, not as a single rated figure, so we do not state a rated l/min or SCFM number. Tell us your application's air demand and port size and we will confirm the flow figures from the datasheet on request before you order.
The A in the code GFR30010AC2G specifies an automatic drain, which expels collected condensate from the polycarbonate bowl without operator attention - useful for unattended or hard-to-access installations. Manual (M) and differential-pressure (blank) drains are catalogue alternatives on the same GFR300 series if you prefer a different drain type.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 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.