The AirTAC GFR40010MLJF2WK AirTAC Filter Regulator, PT3/8, 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 GFR40010MLJF2WK is a size-400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is a 3/8 in PT-threaded unit with a fine 5 um filter element (code W), a manual drain bowl in polycarbonate, a low-pressure regulator type, an embedded square gauge reading in psi, and a reverse/check valve fitted. It is ordered without a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
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 in and options including drain type, 40 um or 5 um filtration, gauge scale, thread form and bracket. 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 | GFR40010MLJF2WK AirTAC Filter Regulator, PT3/8, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (PT 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 — square, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
| 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. |
| K | Reverse-flow (reflux) valve fitted. |
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) |
Filtered, regulated air feeding directional control valves and small actuators on a cartoning or wrapping line, with the 5 um element protecting valve internals and the psi gauge giving operators a local setpoint check.
Supply air to gate and divert cylinders along a conveyor system, where the regulator holds a steady low-pressure setting and the manual drain lets maintenance clear accumulated water during scheduled rounds.
Air supply to clamps and test fixtures on a lab or pilot-line bench, where fine 5 um filtration, a low-pressure regulator type and a reverse/check valve help hold a stable, clean supply to sensitive tooling.
Choose the size and port step against the air demand of the circuit: this unit is size 400 with a 3/8 in PT port; larger sizes carry larger ports and more flow. Drain type is a real choice - manual (this unit, suited to attended maintenance rounds), automatic, or the differential-pressure default. Filter grade is 40 um standard or 5 um fine (code W, fitted here) where finer particulate protection is needed. The gauge is the embedded square type; scale options are MPa, psi (fitted here) or bar, with an external round gauge available. Thread is PT as standard with G (BSPP) and NPT as order options, and a bracket is optional (omitted on this unit). 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. The reflux valve permits reverse flow 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 number. Tell us your application and we will confirm the flow data from the datasheet and check the sizing for you before you order.
The M in the code specifies a manual drain bowl, which is emptied by hand during maintenance. The GFR series is also available with automatic drain (code A) or the differential-pressure drain default; the 5 um element, psi gauge scale, low-pressure type and reverse/check valve on this unit are all separately decodable options.
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.