The AirTAC GFR40010MJC2WGK 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 water and particulate filtration with pressure regulation in a single body, so one unit both cleans the compressed air and holds your downstream pressure where you set it. This configuration is the 400 size with a G3/8 (BSPP) port, a 5 um filter element for finer dirt and sludge removal than the standard 40 um grade, and a manual drain you operate yourself to empty the polycarbonate bowl. The regulator is the standard type with an adjustment range of 0.05-0.9 MPa (7-130 psi), and the K code means a reverse (check) valve is fitted so downstream pressure is held if the supply is interrupted. A round pressure gauge reading in psi is included, and no mounting bracket is supplied with this code.
This is a genuine AirTAC part. The GFR family is published in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 inch, a choice of manual, automatic or differential-pressure drains, 40 um standard or 5 um (W) elements, square embedded or round external gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so send us your application and we will confirm the sizing and datasheet figures on request.
| Model | GFR40010MJC2WGK 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 | Standard 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 | 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. Standard type, regulating 0.05 - 0.9 MPa (7 - 130 psi). 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)). |
| (blank) | Standard 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. |
| 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) |
Feeds the clamp cylinders on a CNC fixture line: the 5 um element keeps swarf-laden shop air out of the clamping valves while the regulator holds a fixed clamp pressure set once at setup, and the check valve keeps the fixture clamped through a brief supply drop.
Supplies the stop-and-divert cylinders on a carton packaging line, where the regulator gives each zone its own set pressure for gentle handling and the manual drain fits a shift-maintenance routine that already walks the line.
Feeds the pusher and capping cylinders on a bottling hall line: the 5 um grade protects the directional valves from water and particulate carryover, the psi gauge lets technicians read set pressure at a glance, and the 3/8 port serves a mid-size zone supply.
Start with the port and size step: the 400 size with a 3/8 port sits mid-range in the GFR family, and the right step depends on the air demand of the line - if your consumption is near the top of a smaller unit's curve, step up rather than throttle. This code carries the 5 um (W) element; choose it when downstream valves, cylinders or instruments need finer filtration than the 40 um standard, noting the finer element is traded against a shorter service interval. The manual drain suits installations where someone walks the line regularly; pick automatic or differential-pressure drain codes for unattended duty. The round psi gauge is fitted here; square embedded gauges and MPa or bar scales are alternative codes. Thread is G (BSPP) on this unit, with PT and NPT available as order options, and the J code means you should budget a bracket separately if you panel-mount. Flow for this series is published as curves, not a single rating, so 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 GFR400 series as curves, not as a single rated number, so there is no honest one-figure rating we can quote. Send us your line pressure, set pressure and air consumption, and we will confirm the sizing from the datasheet curves on request before you order.
The M code means the polycarbonate bowl is emptied by hand: someone opens the drain at intervals to release collected water. Choose the automatic-drain code for unattended installations, or the differential-pressure (blank) code where you want the bowl to discharge on a pressure drop. All three are catalogue drain options across the GFR 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.