The AirTAC GFR40010MLJF2G AirTAC Filter Regulator G3/8 Low-Pressure 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 GFR40010MLJF2G is a GFR400-series filter regulator: filtration and pressure regulation combined in a single body. It removes water and particulate from compressed air through a 40 um element, then regulates downstream pressure with its low-pressure type regulator, so one unit handles both air preparation jobs. This configuration has a G3/8 (BSPP) port on the size 400 body, a manual drain bowl in polycarbonate (PC), an embedded square gauge reading in psi, and no mounting bracket or reverse/check valve. Maximum working (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 GFR family is published in sizes 200, 300, 400 and 600, with port options, drain choices (differential-pressure, automatic or manual), a 5 um filter element option (code W), gauge scale options and bracket options across the range. Flow figures for this series are published as curves rather than a single rated number, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR40010MLJF2G AirTAC Filter Regulator G3/8 Low-Pressure |
|---|---|
| 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 | 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, 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. |
| J | Supplied without bracket. |
| (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 the cylinders and actuators on a carton-forming or wrapping line, where the manual drain suits a shift-start maintenance routine and the psi gauge lets operators set and check line pressure at a glance.
Supplying a pneumatic clamping or holding fixture that is set up to run below standard line pressure, where the low-pressure type regulator gives finer control in the lower part of the range and the 40 um element protects the valve seats.
Conditioning the air feeding air tools, grippers and small actuators at an assembly workstation, combining water and particulate removal with regulation in one body to save panel space on the size 400 G3/8 supply drop.
Choose the size and port step against the air consumption of the equipment you are feeding: this unit is size 400 with a G3/8 port, one step up from the 300 series in both port and body size. Drain type is a real choice: this model has a manual drain, which means an operator drains the bowl; automatic or differential-pressure drain variants exist if unattended drainage is preferred. The 40 um element fitted here is the standard grade; specify the W option for a 5 um element where finer filtration is needed. The square gauge is fitted and reads in psi; MPa and bar scales are available as options. Thread is G (BSPP) here; PT is the standard thread and G/NPT are catalogue options to order. A mounting bracket can be added if the J (no bracket) specification does not suit your panel. 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 the GFR series as curves, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Send us your application details and we will confirm the flow data from the datasheet and check the sizing against your air consumption before you order.
The M in the code specifies a manual drain: condensate collected in the PC bowl is released by operating the drain by hand, which suits installations checked as part of a regular maintenance routine. The GFR400 is also available with an automatic drain or the differential-pressure drain as the default, so choose the variant that matches how often the unit can be attended.
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.