The AirTAC GFR400C10ALJF2T 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 See datasheet 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 GFR400C10ALJF2T is an AirTAC GFR-series filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This size 400 configuration has a 3/8 in NPT port, an automatic drain that ejects collected condensate without manual attention, a standard 40 um filter element and a metal bowl, plus the embedded square gauge scaled in psi. It is the low-pressure type, chosen for circuits that call for lower regulated pressures, and no mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and is configurable with manual, automatic or differential-pressure drains, 40 um or 5 um (code W) filter elements, MPa/psi/bar gauge scales, G or NPT thread options and an optional bracket. AirTAC publishes flow as curves rather than a single rated figure, so we confirm sizing and any datasheet figure on request.
| Model | GFR400C10ALJF2T AirTAC Filter Regulator NPT3/8 Low-Pressure |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 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. |
|---|---|
| C1 | Port size See datasheet. 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Filtered, regulated air for air knives that dry bottles before labelling. The automatic drain keeps condensate out of the blow-off air, the 40 um element protects the nozzles, and the low-pressure type suits gentle drying set-points.
Supplies filtered, pressure-regulated air to atomizing nozzles on a finishing line. The 40 um element guards the nozzle circuit against water and particulate while pressure is held at low set-points, with a direct psi readout on the square gauge.
Feeds light-duty cylinders and low-pressure actuators on a packaging line that runs below standard regulated pressures. The embedded square psi gauge gives operators a local pressure check at the machine.
Size and port step up together: sizes 200, 300, 400 and 600 cover ports from 1/8 in to 1 in, so choose the size whose flow curve covers your air consumption. Drain choice matters: automatic (this model) clears condensate without attention, manual needs periodic draining, and differential-pressure drains as the element loads up. Filter grade is 40 um standard; specify code W for the 5 um element where finer particulate protection is needed. Gauge scale (MPa, psi or bar) and thread (PT standard, with G or NPT as order options - this model is NPT) are decodable choices, and a bracket is optional on GFR. Because AirTAC publishes flow as curves rather than a single rated figure, 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. 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 rather than a single rated figure, so we do not quote a number here. Send us your operating pressure and air consumption and we will confirm sizing against the datasheet curves on request.
This unit is the low-pressure variant of the GFR400 filter regulator, selected for circuits that require lower regulated pressures than the standard type. The exact adjustment range for the low-pressure type is not published in the catalogue, so we confirm it on request. Everything else decodes normally: NPT3/8 port, automatic drain, 40 um element and the embedded square gauge scaled in psi.
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.