The AirTAC GFR40010MLC2WG AirTAC Filter Regulator G3/8, 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR40010MLC2WG is a size-400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body, so one unit and one connection do both jobs. This configuration is built with a G3/8 (BSPP) port, a manual drain bowl in polycarbonate, a 5 um filter element (the finer of the two published grades), and a fitted external round gauge reading in psi. It is the low-pressure type, intended for circuits that need regulation below the standard adjustment band, and it includes a mounting bracket.
This is a genuine AirTAC part from the GFR400 series, one of four sizes (200/300/400/600) with port options from 1/8 to 1 inch and thread options in PT (standard), G and NPT. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR40010MLC2WG AirTAC Filter Regulator G3/8, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (G (BSPP) thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 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. |
| 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) |
Feeding cylinders and valves on a stamping or forming press cell, where the point-of-use air must be filtered and held at a low regulated setting; the manual drain is emptied during shift checks and the psi gauge gives the operator a direct reading.
Supplying test benches and pilot rigs that need clean, moisture-reduced air at gentle regulated pressures; the 5 um element protects sensitive instruments and the low-pressure type suits circuits that run well below standard line settings.
Air preparation for diverters, lifters and clamp actuators on a packaging or bottling conveyor, where one combined unit filters the air, drops it to the pressure the actuators were designed for, and shows the setting on the round psi gauge.
Choose the size and port step against the air your circuit actually consumes: the GFR400 with its G3/8 port is the mid-large step in the range, and oversizing or undersizing shows up in the flow curves rather than in any single rating - so send us your demand and we will confirm the fit. Because flow is published as curves and not a single rated number, ask us to check sizing against the application before ordering. This unit is already specified with the choices that matter: manual drain (simple, operator-emptied, and it widens the regulator adjustment band versus the differential-pressure default), the 5 um W-grade element for finer particulate and water removal than the 40 um standard, the low-pressure regulator type for setpoints below the standard band, a round psi gauge, G (BSPP) thread instead of the PT standard, and the included bracket. If you would rather have the 40 um element, an automatic or differential-pressure drain, an embedded square gauge, MPa or bar scale, NPT thread, or a reverse/check valve, those are catalogue options on this family - tell us and we will quote the matching code.
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 filter-regulator performance as flow curves, not as a single rated flow figure, so we do not quote a number here - and we will not estimate one. Send us your application's air demand and operating pressure and we will confirm the sizing against the datasheet curves on request before you order.
Both are decoded from the model code. The M gives a manual drain, which you or the operator empty at the bowl - it is the simplest arrangement and, on this family, the manual-drain version carries the wider regulator adjustment band. The W gives the 5 um filter element, the finer of the two published grades (40 um is the standard), which suits downstream equipment that needs cleaner air. If you prefer an automatic or differential-pressure drain or the 40 um element, those are catalogue options we can quote.
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.