The AirTAC GFR40010C2G AirTAC Filter Regulator, G3/8, 40 um 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 differential-pressure 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 GFR40010C2G is a size 400 filter regulator: it removes water and particulate from compressed air and sets downstream pressure in one compact body. This configuration carries a G3/8 (BSPP) port, the standard 40 um filter element, a differential-pressure drain that bleeds condensate automatically whenever the pressure drop across the element rises, and a fitted round gauge reading in psi so the set pressure is visible at the point of use. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and maximum inlet pressure is 1.0 MPa (145 psi). The polycarbonate bowl suits the non-freezing -5 to 70 C operating range, and the mounting bracket is included.
This is a genuine AirTAC part from the GFR400 series. The GFR line is available in sizes 200, 300, 400 and 600 with a choice of ports, PT, G or NPT threads, manual, automatic or differential-pressure drains, a 5 um (code W) element option, gauge scale choices and low-pressure variants - and the 600 size uses an aluminium alloy bowl. Flow for this series is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet and sizing figures for your application on request.
| Model | GFR40010C2G AirTAC Filter Regulator, G3/8, 40 um |
|---|---|
| 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 | Differential-pressure 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". |
| (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) | 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 CNC machining centre's pneumatic tool-change and clamping circuits, it strips water and swarf-laden particulate from the shop air and holds a steady set pressure so clamps and tool changers repeat consistently shift after shift.
Installed on the supply line to a packaging conveyor's stopper and pusher cylinders, it keeps moisture and debris out of the valves while the psi gauge lets line technicians read and lock the operating pressure the actuators were set up for.
Fitted ahead of the manifold serving handheld impact drivers and nutrunners on an assembly line, it conditions the plant air to protect the tools' internal seals and gives supervisors a visible, adjustable pressure point for the tool station.
Start with the port and size: the 400 frame with its 3/8 in connection sits mid-range in the GFR line, so step up to 600 or down to 300 depending on the air demand of the circuit - and because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering. Then pick the drain: differential-pressure (this model) drains only when the element loads up, automatic drains on a cycle, and manual requires an operator - the drain choice also affects the regulator adjustment range, with manual-drain versions reaching down to 0.05 MPa. Choose the 40 um standard element for general plant air or the 5 um W option for finer protection, select the gauge scale (MPa, psi or bar) and round or square style, and specify PT, G or NPT thread when ordering; a bracket is included on this unit.
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 GFR series as curves, not as a single rated figure, so we do not quote a number here - quoting one would be a guess. Send us your application details and we will confirm the datasheet and flow-curve figures for this 3/8 in unit on request, so you can size it against your actual air demand before ordering.
The blank drain position in the code means the differential-pressure drain: condensate is expelled automatically whenever the pressure drop across the 40 um element builds up, with no operator involvement. If you prefer a drain that operates on a cycle or one you bleed by hand, GFR400 units are also available with automatic (code A) or manual (code M) drains - and note the manual-drain versions offer a wider regulator adjustment range down to 0.05 MPa.
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.