The AirTAC GFR40010AJC2WG AirTAC Filter Regulator 3/8 in, 5 um is a genuine G-series filter regulator: water separation, 5 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 GFR40010AJC2WG is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a G3/8 (3/8 in) G-thread port, a 5 um filter element (the finer W grade, versus the 40 um standard), an automatic drain that ejects collected condensate without manual attention, a standard-type regulator with a 0.15-0.9 MPa (20-130 psi) adjustment range, and an external round gauge reading in psi. The polycarbonate bowl suits the non-freezing -5 to 70 C operating range, and maximum inlet pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, drain types (differential-pressure, automatic, manual), filter grades (40 um standard, 5 um optional), gauge styles and scales, and G/NPT thread variants. Flow is published as curves rather than a single rated figure, so we confirm flow and datasheet figures on request before you order.
| Model | GFR40010AJC2WG AirTAC Filter Regulator 3/8 in, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (G (BSPP) thread) |
| Filtering grade | 5 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. |
| J | Supplied without bracket. |
| (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. |
| W | Filtering grade 5 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" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Feeds clean, regulated air to the tool-change and clamping circuits of a machining centre, with the 5 um element guarding fine spool valves and the automatic drain keeping condensate out of the bowl between shifts.
Sits at the drop point feeding pneumatic cylinders and diverters on a carton packing conveyor, holding a steady set pressure while the automatic drain handles moisture carried in from the compressor room.
Conditions the air feeding sample-handling actuators and purge jets on an automated analytical bench, where the 5 um grade and a psi-reading round gauge support repeatable, monitored supply pressure.
Choose the size 400 / 3/8 in step when your line's porting and expected flow sit above the 300 size; the G-series steps up through 200, 300, 400 and 600 so port and capacity grow together. This unit's automatic drain suits unattended duty - pick manual drain if you prefer a hands-on check, or the differential-pressure default where scheduled blowdown fits the maintenance routine. The 5 um element here is the finer option; the 40 um standard grade is available if your downstream components tolerate coarser filtration. The round psi gauge is the external style (an embedded square gauge is the catalogue standard), with MPa or bar scales orderable. Thread is G (BSPP) here; PT is the catalogue standard and NPT is an order option. No mounting bracket is included with this code.
Because flow is published as curves and not a single rating, 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 GFR series as curves, not as a single rated figure, so we do not quote a number here. Tell us your line pressure, set pressure and expected air demand, and we will confirm the flow from the datasheet curves on request before you order.
The A in the code specifies an automatic drain, which ejects collected condensate by itself - useful on lines that run unattended. The GFR series is also available with a manual drain or the differential-pressure default, so you can order a different drain type if your maintenance routine prefers it.
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.