The AirTAC GFR40010MF2G AirTAC Filter Regulator 3/8in G, Manual Drain is a genuine G-series filter regulator: water separation, 40 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 GFR40010MF2G is a size-400 filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your set point in one body. This configuration has G3/8 (BSPP) ports, a manual drain bowl in PC (polycarbonate), a 40 um standard filter element, a fitted embedded square gauge scaled in psi, and includes a mounting bracket. With manual drainage, the bowl is emptied by hand as part of routine maintenance, and the regulator adjusts from 0.05 to 0.9 MPa (7-130 psi).
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, plus options including automatic or differential-pressure drains, a 5 um (W) filter element, round external gauges, MPa/psi/bar scales, G or NPT threads, and low-pressure or reverse-valve variants. Flow is published as curves rather than a single rating, so we confirm the datasheet figures for your application on request.
| Model | GFR40010MF2G AirTAC Filter Regulator 3/8in G, Manual Drain |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (G (BSPP) thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual 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 0.05 - 0.9 MPa (7 - 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 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. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Feeding filtered, regulated air to a workshop press or clamping fixture, where the operator sets working pressure at the gauge and drains the bowl during scheduled checks.
Conditioning the air supply to cylinders and diverters on a packaging or labelling conveyor, keeping water and debris out of the valves while holding a stable set pressure.
Mounted on a machine tool's air preparation panel, filtering the shop supply and regulating pressure to the machine's pneumatic circuits, with the bracket fixing the unit beside the gauge.
Step up or down through the GFR sizes (200/300/400/600) so the port and flow capacity match your line - this size-400 unit carries 3/8 inch ports. Choose the drain to suit access: manual (this model) for supervised maintenance, automatic for unattended condensate removal, or differential-pressure. Pick the 40 um standard element or the 5 um (W) option for finer filtration, and set the gauge scale to MPa, psi or bar - this unit ships with a square psi gauge. PT is the standard thread; G (this model) and NPT are order options, and a bracket is included. Flow is published as curves, not a single rating, so 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 rather than a single rated figure, so we do not quote one number. Tell us your application and we will confirm the relevant flow and datasheet figures on request before you order.
The M in the code specifies a manual drain: condensate collected in the PC bowl is released by hand during maintenance rounds instead of automatically. If the unit will run unattended, ask about the automatic or differential-pressure drain variants of the same GFR400 size.
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.