The AirTAC GFR40010MLJC2WG AirTAC Filter Regulator G3/8, 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 GFR400 series combines filtration and pressure regulation in a single body: compressed air is first stripped of water and particulate, then passed through the integrated regulator, so one unit and one panel space do the work of a separate filter and regulator. This GFR40010MLJC2WG is built for a G3/8 port with G (BSPP) thread, carries a 5 um filter element for finer particle capture than the 40 um standard, and uses a manual drain, so the bowl is emptied by hand as part of routine servicing. The regulator is the low-pressure type, and the fitted round gauge reads in psi so the set pressure can be checked at a glance. The polycarbonate bowl suits this size, and no mounting bracket is included with this code.
This is a genuine AirTAC part from the G-series air-treatment line, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and options including automatic, manual or differential-pressure drains, 40 um or 5 um elements, gauge styles and scales, and PT, G or NPT threads. Flow figures for this series are published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR40010MLJC2WG AirTAC Filter Regulator G3/8, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (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 — round, 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). |
| C | Gauge shape: Round. 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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Feeding clamps or hold-down cylinders on a fixture that work at reduced pressure: the 5 um element protects the valves, the low-pressure regulator holds the gentle setpoint, and the psi gauge lets the setter verify it.
Conditioning shop compressed air before it reaches bench-top test rigs or lab apparatus: fine 5 um filtration plus stable reduced pressure, with the round psi gauge for repeatable setup between runs.
Supplying air to diverters, pushers and stop cylinders on a packaging or conveyor line, where the manual-drain bowl is emptied during scheduled line cleaning and the regulator sets the actuator pressure.
Choose the size step (200/300/400/600) and port to match the air demand of the line downstream - the 400 size with its 3/8 in port sits in the middle of the range for machines with moderate-to-high consumption. This code fixes several real choices: manual drain (simple and low-cost, but the bowl must be drained by hand - pick an automatic or differential-pressure drain code if nobody will do that regularly), a 5 um element where finer filtration is needed, the low-pressure regulator type, a round psi gauge, G (BSPP) thread, and no bracket. If the exact regulation span for the low-pressure type matters to your setpoint, confirm it with us before ordering. Flow for this series is published as curves, not a single rating, so send us your application details and we will confirm sizing against the datasheet.
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 series as curves rather than a single rated figure, so we do not quote a number here. Tell us your application - inlet pressure, set pressure and the air demand downstream - and we will confirm the sizing against the datasheet before you order.
The M in the code selects the manual drain: the polycarbonate bowl is emptied by hand, which suits lines with scheduled maintenance but not unattended installations - automatic or differential-pressure drain codes are available if preferred. The W selects the 5 um element instead of the 40 um standard, for finer removal of particles and entrained water. The L selects the low-pressure regulator type, and the C2 fits the round gauge reading in psi.
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.