The AirTAC GFR40010LC2WG 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 differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR40010LC2WG is an AirTAC GFR400 filter regulator: a single body that removes water and particulate from compressed air and then regulates downstream pressure. This configuration is built on the size 400 frame with a G3/8 (BSPP) port, carries the fine 5 um filter element (code W), and is the low-pressure regulator type. The differential-pressure drain bleeds collected condensate automatically whenever the pressure differential across the element is high enough, so no manual draining routine is needed. An external round gauge with a psi scale is fitted so operators can read and set downstream pressure directly, and a mounting bracket is included for secure panel or frame installation.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, drain choices (differential-pressure, automatic or manual), 40 um standard or 5 um fine filtration, gauge options with MPa, psi or bar scales, and G, NPT or PT threads. Flow is published as curves rather than a single rating, so ask us to confirm the flow and datasheet figures for your application before ordering.
| Model | GFR40010LC2WG AirTAC Filter Regulator G3/8, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (G (BSPP) thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure 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". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (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 clean, finely regulated low-pressure air to laboratory analysers and sample-handling panels, where the 5 um element protects sensitive pneumatic components and the psi gauge gives operators a direct setpoint readout.
Supplying filtered and pressure-controlled air to small pneumatic grippers and clamp cylinders on an assembly bench, with the differential-pressure drain keeping the bowl clear without a daily draining routine.
Conditioning the air feeding a cartoning or wrapping machine's low-pressure actuation circuit, where the low-pressure regulator type, 5 um filtration and included bracket suit a compact machine-mounted installation.
Start with the port step: this unit is size 400 with a G3/8 port, one step above the 1/4 in class, so size up if your line sits between frame sizes. Filtration here is the 5 um fine element (code W) rather than the 40 um standard - choose 5 um when downstream valves, cylinders or instruments are sensitive to fine particulate. The drain is differential-pressure, the default: it self-bleeds condensate with no operator action; if you prefer a fixed automatic or a manual drain, those are separate order codes. The fitted round gauge reads in psi; MPa and bar scales are available as options.
This is the low-pressure regulator type (code L), intended where downstream pressure must sit well below the standard range; the exact adjustment range for the low-pressure type is not published in the sheet we work from, so confirm it with us. Thread is G (BSPP); PT is the catalogue standard and NPT can be ordered. A bracket is included. Because flow is published as curves and not a single rating, send us your application flow and pressure targets 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. 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 GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your required flow, inlet pressure and downstream setpoint and we will confirm the sizing from the datasheet on request.
L marks the low-pressure regulator type, intended for circuits that run at lower downstream pressures than the standard version. The exact adjustment range for the low-pressure type is not published in our data sheet, so confirm the range with us before ordering. Everything else in the code decodes normally: 5 um filtration, differential-pressure drain, round psi gauge and G3/8 thread.
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.