The AirTAC GFR40010ALJC1T AirTAC Filter Regulator NPT3/8 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 automatic 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 AirTAC GFR40010ALJC1T is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This size 400 unit is ordered with NPT3/8 (3/8 in) ports, an automatic drain that ejects collected condensate without manual attention, the standard 40 um filter element, and the low-pressure regulator type for circuits that run at reduced set pressures. An external round gauge with an MPa scale is fitted so the outlet pressure is visible at a glance, and no mounting bracket is included in this configuration.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with a choice of PT, G or NPT thread, differential-pressure, automatic or manual drain, 40 um or 5 um (W) filtration, standard or low-pressure regulation, gauge style and scale, and bracket options. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR40010ALJC1T AirTAC Filter Regulator NPT3/8 Low-Pressure |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (NPT 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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, MPa 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". |
| A | Drain: Automatic 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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) |
Feeds and regulates the air to clamping cylinders on a CNC fixture line, where the low-pressure regulator type holds a reduced set pressure for delicate workholding and the 40 um element keeps water and swarf-contaminated condensate out of the clamp circuit.
Conditions the supply to bench-top pneumatic test apparatus that operates at reduced pressure, with the round MPa gauge giving a clear outlet reading and the automatic drain keeping the bowl clear of condensate during long unattended test runs.
Filters and regulates air to the cylinders and air tables that index cartons along a packaging conveyor, where the automatic drain copes with condensate from a long air line and the low-pressure type matches the gentle set pressure the actuators need.
Start with the port size: this unit steps up to 3/8 in in the size 400 body, so check that the step from your supply line matches the flow your circuit needs - we can confirm curve figures against your demand before you order. Drain choice matters in service: automatic drain (as here) suits unattended duty, manual drain suits supervised installations, and the differential-pressure default is the catalogue standard. Filtration is 40 um as ordered; specify W for the 5 um element where downstream equipment needs finer protection. The round MPa gauge fitted here is the optional external style - the embedded square gauge is standard, and psi or bar scales can be ordered. Thread is NPT as ordered; PT is the catalogue standard and G is also available. Brackets are optional - this configuration omits one. The low-pressure regulator type is intended for circuits running below standard set pressures; its exact adjustment range is not published, so confirm it with us. Note that flow is published as curves, not a single rating - ask us to confirm sizing against the 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 flow for this series as curves, not as a single rated figure, so there is no one flow number we can honestly quote. Send us your line size and air demand and we will confirm the curve figures and check the sizing against your application on request.
The A in the code orders the automatic drain, which ejects collected condensate from the bowl without anyone opening it - useful for unattended or hard-to-reach installations. The catalogue alternatives are manual drain (code M) and the differential-pressure drain, which is the default when no drain code is given. The adjustment range of the low-pressure regulator type in this unit is not published, so confirm it with us before ordering.
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.