The AirTAC AirTAC GFR40010AJF2WG Filter Regulator G3/8 5 um Auto Drain 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 GFR40010AJF2WG is an AirTAC GFR400 filter regulator: it removes water and particulate from compressed air and holds downstream pressure in one compact body. This configuration is built around a G3/8 (BSPP) port, a 5 um filter element (the finer of the two catalogue grades), an automatic drain that bleeds collected condensate from the PC bowl without manual attention, and an embedded square gauge reading in psi. Regulation range is 0.15-0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the unit operates from -5 to 70 C in non-freezing conditions. No mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR series is published in four sizes (200, 300, 400 and 600) with ports from 1/8 to 1 inch, and with catalogue choices of drain type, 40 um or 5 um filtration, gauge scale, thread (PT standard; G and NPT orderable) and bracket. Rated flow is published as curves rather than a single figure, so ask us to confirm sizing and full datasheet figures for your application before ordering.
| Model | AirTAC GFR40010AJF2WG Filter Regulator G3/8 5 um Auto Drain |
|---|---|
| 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 — square, 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). |
| F | Gauge shape: Square. 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) |
Point-of-use preparation for a CNC's pneumatic tool clamps and chip-clearing cylinders: 5 um filtration protects the machine's valves from water and contaminant carryover, while the regulator holds a steady set pressure at the machine frame.
Installed ahead of the carton-forming and sealing station on a bottling line: it strips condensate and particulate from shop air and regulates the pressure driving the case packer's cylinders and grippers, with the automatic drain handling condensate unattended.
Feeding the diverter gates and stoppers along a distribution-centre conveyor run: the automatic drain keeps condensate out of the directional valves during humid shifts, and the psi gauge lets maintenance verify the set pressure at a glance.
Size and port: the GFR400 sits in the middle of the range with a 3/8 inch port; step up or down through 200/300/400/600 according to the air demand of your line - we can check the published flow curves against your requirement. Drain: this unit has an automatic drain; manual and differential-pressure drains are also catalogue choices. Filtration: 5 um here (code W) against the 40 um standard element - choose 5 um where downstream valves and cylinders need finer protection. Gauge: embedded square gauge with a psi scale; MPa and bar scales, and an external round gauge, are options. Thread: G (BSPP) as coded; PT is the standard thread and NPT is orderable. No mounting bracket is included (code J). Before ordering, ask us to confirm flow and datasheet figures - the catalogue publishes flow as curves, not a single rating.
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 GFR400 flow as performance curves rather than a single rated figure, so we do not quote a number here. Send us your inlet pressure, set pressure and expected air demand, and we will confirm the flow and full datasheet figures for this model on request.
This unit carries code A - an automatic drain that expels collected condensate from the PC bowl on its own, suiting unattended or hard-to-reach installations. Manual (M) and differential-pressure (blank) drains are catalogue alternatives if you prefer hands-on or pressure-differential draining.
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.