The AirTAC GFR40010AF2W AirTAC Filter Regulator 3/8 in PT, 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 GFR40010AF2W is an AirTAC GFR400 filter regulator: filtration and pressure regulation combined in a single body, with no lubricator. It removes water and particulate from compressed air and delivers a regulated downstream pressure adjustable from 0.15-0.9 MPa (20-130 psi). This configuration is fitted with a 5 um filter element (the finer of the two grades), an automatic drain that expels collected condensate without manual attention, an embedded square gauge reading in psi, and a 3/8 in PT port as the standard connection.
This is a genuine AirTAC part in the GFR400 size, one of four sizes (200/300/400/600) spanning the G-series port range with optional G (BSPP) or NPT threads, manual or differential-pressure drains, a 40 um standard element, alternative gauge scales and a reverse/check valve. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR40010AF2W AirTAC Filter Regulator 3/8 in PT, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (PT 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. |
| (blank) | Mounting bracket included. |
| (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. |
| (blank) | PT 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) |
Clean, regulated air for spray guns and atomising lines in a finishing booth: the 5 um element catches water and particulate that would spoil finish quality, while the regulator holds a steady gun pressure and the automatic drain keeps condensate off the floor.
Feeding cylinders and diverters on a packaging conveyor, where the regulator sets a consistent operating pressure for repeatable stroke timing and the automatic drain suits a line that runs unattended through shifts.
Setting and holding clamping pressure on a pneumatic press or workholding fixture: the psi square gauge gives the operator a direct readout, and the 5 um element protects sensitive valve and cylinder internals at the point of use.
Step up or down the G-series sizes (200/300/400/600) to match the port and flow path your line needs; this unit is the 400 size with a 3/8 in PT port. Choose the drain to suit access: automatic (as fitted here) for unattended condensate removal, manual for periodic purging, or differential-pressure as the default. Choose the 5 um element (this code) when downstream equipment needs finer filtration than the 40 um standard. The embedded square gauge reads psi here; MPa and bar scales and an external round gauge are alternatives. PT is the standard thread, with G (BSPP) and NPT available as order options, and a mounting bracket is included. Because flow is published as curves rather than 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 this series as curves, not as a single rated figure, so we do not quote a number. 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 itself: collected condensate is expelled automatically, which suits installations that are not checked daily. Manual and differential-pressure drain versions are available in the same series if you prefer to purge on a schedule.
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.