The AirTAC GFR40010MLJC2WGK 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 GFR40010MLJC2WGK is an AirTAC GFR400 filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate from compressed air through a 5 um element (the fine grade, code W, versus the 40 um standard), then regulates downstream pressure. This configuration has a manual drain bowl in polycarbonate, a fitted round gauge reading in psi, a reverse/check valve, and no mounting bracket. It is a low-pressure type, and the port is G3/8 with G (BSPP) thread.
This is a genuine AirTAC part in the GFR400 size family, which spans sizes 200 to 600 with port options from 1/8 to 1 inch and PT, G or NPT threads. Drain, filter grade, gauge style and scale, bracket and reverse-valve options let you match the unit to the circuit. AirTAC publishes flow as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR40010MLJC2WGK 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 | 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). |
| 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) |
A low-pressure filter regulator keeps clamp cylinders supplied with clean, moisture-reduced air at a stable setpoint, with the 5 um element protecting valve spools from fine particulate.
On a carton-forming or wrapping line, this unit filters and regulates the air feeding small actuators and ejectors, with the manual drain cleared during shift-start checks.
Where a test rig or pilot panel runs at modest pressures, the low-pressure regulator type with a psi-scaled round gauge gives operators a readable, fine-controlled air supply.
Size 400 with a G3/8 port sits mid-range in the GFR line; step up or down (200/300/400/600) to match the pipe size and flow demand of the circuit. This unit is already specified with the fine 5 um element, manual drain, round psi gauge and reverse/check valve, so the remaining real choices are thread (G here; PT is the standard, NPT an order option) and whether you need a bracket (this configuration has none). Note it is the low-pressure regulator type, so confirm its adjustment range suits your setpoint before ordering.
Because AirTAC publishes flow only as curves and not as a single rated number, send us your application details and we will confirm sizing against the datasheet before you order.
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 does not publish a single rated flow figure for this unit; flow is given only as curves. Tell us your line conditions and required flow, and we will confirm the datasheet figures for the GFR400 size on request before you order.
A manual drain means the bowl is emptied by hand, which suits supervised installations with regular checks; automatic and differential-pressure drains are available as alternative codes. The 5 um element (code W) is the fine filtration grade, one step below the 40 um standard, for circuits with sensitive downstream components.
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.