The AirTAC GFR40015MLJF2WG AirTAC Filter Regulator G1/2 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 PT1/2" 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.
This GFR400 filter regulator combines water and particulate removal with pressure regulation in a single body. This configuration is built with G1/2 (BSPP) ports, the finer 5 um filter element, a manual drain, the low-pressure regulator type and an embedded square gauge reading in psi. The polycarbonate bowl lets you see collected condensate at a glance, and the manual drain is emptied by hand - a practical choice where the unit is tended regularly. No mounting bracket is fitted.
It is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, plus options for automatic or differential-pressure drains, the standard 40 um element, alternative gauge scales and G or NPT threads in place of the PT standard. Max inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Because flow is published as curves rather than a single rating, we confirm the datasheet figures for your application on request.
| Model | GFR40015MLJF2WG AirTAC Filter Regulator G1/2 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (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 — 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. |
|---|---|
| 15 | Port size PT1/2". 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. |
| 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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeding pneumatic clamps and hold-downs on a machining fixture that need filtered air regulated down to a low set pressure, with a psi gauge for direct setting.
Conditioning the air to carton-sealing and case-packing cylinders: the 5 um element keeps fines out of directional valves while the regulator holds a steady working pressure.
Supplying clean, low-pressure regulated air to lab apparatus and pilot rigs, with manual drain-off at the start of each shift.
Size and port: the 400 body takes 1/2 inch ports; step up to 600 or down to 300 according to the air your line needs - we can check the published flow curves against your demand before you order. Drain: this unit is manual; automatic and differential-pressure drains are available in the same family if you cannot rely on regular blow-downs. Filtration: the 5 um element (code W) is the finer choice; the 40 um standard grade suits coarse protection only. Gauge: the embedded square gauge here reads psi; MPa and bar scales and an external round gauge are options. Thread: G (BSPP) as decoded; PT is the catalogue standard and NPT is orderable. Bracket: not fitted (code J); a bracket can be specified. Regulation: this is the low-pressure type; its exact range is not published in our data, so ask us to confirm it against your set pressure.
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, not as a single rated figure, so we do not quote a number here. Send us your line pressure, set pressure and air demand and we will confirm the sizing from the datasheet before you order.
This unit carries code M: condensate is drained by hand rather than automatically. Choose it where the unit is checked daily or mounted where an auto-drain is impractical; automatic and differential-pressure drains are available in the same family.
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.