The AirTAC GFR40010ALC2W AirTAC Filter Regulator PT3/8 5um 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 GFR40010ALC2W is an AirTAC GFR400 filter regulator: water and particulate filtration plus downstream pressure regulation in a single body. This configuration is the size 400 unit with a 3/8 inch PT port, a fine 5 um filter element (code W), an automatic drain that expels collected condensate without manual attention, the low-pressure regulator type, and a round pressure gauge reading in psi. The polycarbonate bowl lets you see the condensate level at a glance, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, drain choices (differential-pressure, automatic or manual), 40 um standard or 5 um fine filtration, gauge style and scale options, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR40010ALC2W AirTAC Filter Regulator PT3/8 5um Auto Drain |
|---|---|
| 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 | Low-pressure 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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)). |
| L | Low-pressure 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. |
| 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) |
Feeding filtered, regulated low-pressure air to the pneumatic clamps and tool-change cylinders on a machining centre, with the 5 um element keeping fine debris out of the valve stack.
Conditioning the air that actuates divert gates, pushers and sealing jaws on a packaging conveyor, where the automatic drain copes with condensate on a line that runs unattended.
Supplying clean, regulated air to lab automation, sample-handling actuators and analytical equipment that needs fine 5 um filtration and a stable low-pressure setting.
Step up or down through the GFR sizes (200/300/400/600) to match the port and flow path your line needs; this unit is size 400 with a 3/8 inch PT thread (G or NPT are order options). The 5 um element suits air that feeds sensitive components; the 40 um standard grade is enough for general protection. The automatic drain is the right choice where the unit sits out of easy reach or where someone cannot be relied on to bleed the bowl. The round psi gauge is the external style; an embedded square gauge is the catalogue standard, with MPa, psi or bar scales available. A mounting bracket is included. Because flow is published as curves and not 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 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 datasheet flow figures on request before you order.
The L code makes this the low-pressure regulator variant of the GFR400, intended for lower set-point work; its exact adjustment range is not published in the material we hold, so ask us to confirm it. The A code gives an automatic drain, so condensate is expelled from the bowl without manual bleeding - the catalogue also offers manual and differential-pressure drains on this family if you would prefer those.
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.