The AirTAC GFR40010LC2G AirTAC Filter Regulator G3/8 Low-Pressure is a genuine G-series filter regulator: water separation, 40 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 GFR40010LC2G is an AirTAC GFR-series filter regulator: water and particulate removal plus downstream pressure regulation combined in a single body. This size 400 unit is built around a G3/8 (3/8 in) port with G (BSPP) thread, carries the standard 40 um filter element, and drains condensate by differential pressure, so the bowl empties itself as the pressure drop across the element builds. The L in the code selects the low-pressure regulator type, and the C2 code adds an external round pressure gauge reading in psi. The polycarbonate bowl suits the -5 to 70 C (non-freezing) operating window, and the mounting bracket is included.
This is a genuine AirTAC part with a 1.0 MPa (145 psi) maximum working pressure. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, plus choices of differential-pressure, automatic or manual drain, 40 um or 5 um (W) filtration, MPa, psi or bar gauge scales, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR40010LC2G AirTAC Filter Regulator G3/8 Low-Pressure |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (G (BSPP) thread) |
| Filtering grade | 40 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. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Filtered, regulated air held at a fixed low pressure keeps swing clamps and work supports on a machining centre fixture consistent from cycle to cycle, with the 40 um element stopping water and particulate from reaching the fixture valves.
A G3/8 filter regulator set to a stable low pressure feeds the air cylinders that divert, stop and push containers between conveyor lanes, while the differential-pressure drain keeps the bowl clear without stopping the line.
Benches that charge parts with air for leak testing need a clean supply and a repeatable set pressure; the external round gauge reading in psi lets the operator verify the test pressure directly on the unit's own scale.
Choose GFR when one body must both clean the air and hold a set pressure. Step through sizes 200/300/400/600 and ports 1/8 in to 1 in to match the line's demand - this unit is size 400 at G3/8. Pick the drain: differential-pressure (as here) empties the bowl on its own as the element loads, automatic suits continuous duty, and manual is for bowls you empty by hand. Filtration is 40 um standard; specify W for the 5 um grade where finer capture matters. The embedded square gauge is standard, while this unit carries the optional external round gauge on the psi scale (MPa and bar scales are also available). PT is the standard thread; G and NPT are order options. The bracket is included here (code J deletes it). Note that the L code selects the low-pressure regulator type, whose exact adjustment range is not published in the catalogue - confirm it with us. Flow is published as curves, not a single rating, so ask us to verify sizing against your application before ordering.
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 G-series flow as performance curves rather than a single rated figure, so we do not quote a number. Send us your application's flow and pressure requirements and we will confirm the datasheet and check the sizing with you before you order.
L marks the low-pressure regulator type. The standard GFR regulator has a catalogue adjustment range of 0.15-0.9 MPa with differential-pressure drain, but the exact range for the low-pressure type is not published, so confirm it with us. The rest of the code decodes as: size 400, G3/8 port, G thread, 40 um element, differential-pressure drain, round psi gauge, no reverse valve, bracket included.
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.