The AirTAC GFR400C10ALJF3T AirTAC Filter Regulator NPT3/8 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 AirTAC GFR400C10ALJF3T is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 400-size unit is tapped 3/8 in NPT, carries the standard 40 um filter element, and discharges condensate automatically so the bowl does not rely on manual draining. The regulator is the low-pressure type, and an embedded square gauge scaled in bar is fitted; no reverse/check valve and no mounting bracket are included in this configuration. Maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -5 to 70 C (non-freezing), and the bowl on this 400 size is polycarbonate.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, a choice of automatic, manual or differential-pressure drains, a 5 um element option (code W), gauge scales in MPa, psi or bar, G (BSPP) or NPT thread options alongside the PT standard, and optional mounting brackets. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR400C10ALJF3T AirTAC Filter Regulator NPT3/8 |
|---|---|
| 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) |
Feeding filtered, regulated air to the cylinder and gripper circuits of a carton-forming and sealing machine, with the automatic drain clearing condensate between cycles.
Supplying low-pressure regulated air to bottle-rinsing and label-blowing jets on a filling line, where the low-pressure regulator type and 40 um filtration keep the nozzles working on clean air.
Running the air cylinders that divert cartons between lanes on a distribution conveyor, with the square bar gauge letting operators check line pressure at a glance.
Size and port step up with demand: this unit is size 400 with a 3/8 in NPT port, and smaller 200/300 or larger 600 sizes are available when the line calls for a different port. Drain choice matters: the automatic drain fitted here suits unattended duty, while manual and differential-pressure drain variants cover attended or series-default installations. The 40 um element is standard; specify the W code for the 5 um grade where finer filtration is needed. The gauge here is the embedded square type scaled in bar, with MPa and psi scales optional, and G (BSPP) or NPT threads can be ordered in place of the PT standard; brackets are optional and not fitted on this configuration. Flow is published as curves, not a single rating, so 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 application details and we will confirm the flow and the full datasheet figures for this 3/8 in NPT filter regulator on request.
This configuration carries the A drain code, so condensate collected in the polycarbonate bowl is discharged automatically instead of waiting for someone to open a manual drain. If your installation prefers manual or differential-pressure draining, those variants are available in the same GFR400 size.
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.