The AirTAC GFR40010MLF3T AirTAC Filter Regulator 3/8 in NPT 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 GFR40010MLF3T is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and then regulates the downstream pressure. This configuration is size 400 with a 3/8 in NPT port, carries the standard 40 um filter element, and has a manual-drain bowl in polycarbonate. The regulator is the low-pressure type, and a square gauge scaled in bar is fitted so the set pressure can be read directly; a mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The G-series filter regulator line spans sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, PT, G or NPT threads, manual, automatic or differential-pressure drains, and a 5 um element where finer filtration is needed. Because flow is published as curves rather than a single rating, we confirm the datasheet and sizing figures for your application on request.
| Model | GFR40010MLF3T AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 40 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 — square, bar 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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, low-pressure regulated air to the cylinder-driven pick-and-place heads that lift and transfer bottles between rinsing, filling and capping stations.
Supplying clean, pressure-controlled air to the pneumatic diverters and pusher gates that route cartons between lanes on a warehouse distribution conveyor.
Providing filtered, manually adjustable low-pressure air to instrumented test rigs where components are cycled and leak-checked at controlled set pressures.
Choose the size by the flow your line needs: 200, 300, 400 and 600 step up in port and capacity, and this unit sits at size 400 with a 3/8 in NPT port. Drain type is a real decision - the manual drain fitted here needs an operator to bleed the bowl, while automatic and differential-pressure drains discharge condensate without attention. The 40 um element is the standard grade; specify code W for 5 um where finer filtration is required. Gauge scale (MPa, psi or bar), PT versus G/NPT thread and the low-pressure versus standard regulator type are all selected at order time, and the bracket is included on this code. Flow is published as curves, not a single rated figure, so send us your application conditions and we will confirm sizing and the datasheet before you order.
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 rather than a single rated figure, so we do not quote one number. Send us your line pressure and air demand and we will confirm the datasheet curve and sizing for your application on request.
The L in the code makes this a low-pressure regulator rather than the standard type. The exact adjustment range for the low-pressure version is not published in the material we hold, so tell us your set pressure and we will verify suitability on request.
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.