The AirTAC GFR40010AC2G AirTAC Filter Regulator G3/8 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 GFR40010AC2G is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This configuration carries a G3/8 port, an automatic drain that empties collected condensate without manual attention, a 40 um standard filter element, and a round gauge reading in psi. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), and the polycarbonate bowl suits the 400 frame, with the mounting bracket included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with port options from 1/8 to 1 inch, G, NPT or PT threads, manual, automatic or differential-pressure drains, a 5 um element option, and gauge choices in MPa, psi or bar scales. Flow is published as curves rather than a single rating, so we confirm the datasheet figures for your application on request.
| Model | GFR40010AC2G AirTAC Filter Regulator G3/8 |
|---|---|
| Series | GFR400 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.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 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 | GFR400 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Mounted at the drop feeding a workshop pneumatic press, this unit cleans incoming air of water and debris and holds a steady regulated pressure so the press cylinder strokes consistently through the shift.
On a bottling or cartoning line, the filter regulator conditions the air driving conveyor stopper and pusher cylinders, with the automatic drain keeping condensate out of the valves during continuous runs.
Installed ahead of a CNC machine tool's air manifold, this unit delivers filtered, regulated air to the tool-change and clamping circuits, with the psi gauge giving operators a visible setpoint at the machine.
Size 400 with a 3/8 port sits in the middle of the GFR range: step up to 600 or down to 300/200 as your line's flow demand and piping dictate. The automatic drain on this unit suits unattended duty; choose manual drain where you prefer controlled, scheduled blowdown, or differential-pressure drain where you want the bowl to dump only when the element loads up. The 40 um element is the standard grade; specify the W option for 5 um when finer pre-filtration matters. The round psi gauge is fitted here, and square embedded gauges or MPa/bar scales are alternatives. Thread is G (BSPP); PT is the catalogue standard and NPT is orderable. Bracket is included.
Because AirTAC publishes flow as curves rather than a single rated figure, ask us to confirm sizing against your application before ordering.
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 the GFR400 series as curves, not as a single rated number, so we do not quote a figure here. Tell us your application and we will confirm the relevant flow and datasheet figures on request before you order.
The A in the code means the bowl drains collected condensate automatically, which suits installations that run unattended. The same GFR400 series is also available with a manual drain or a differential-pressure drain, and the drain choice affects the regulator's adjustment range: automatic and differential-pressure drains give 0.15-0.9 MPa (20-130 psi), while manual drain gives 0.05-0.9 MPa (7-130 psi).
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.