The AirTAC GFR400C10AJF1T 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 GFR400C10AJF1T is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, in one body. This size 400 unit is threaded NPT3/8 (3/8 in), carries the standard 40 um filter element, and drains condensate automatically, so the bowl empties itself as liquid collects. The standard regulator covers 0.15-0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the fitted embedded square gauge reads in MPa. The polycarbonate bowl suits non-freezing compressed air from -5 to 70 C, no mounting bracket is included with this code, and no reverse/check valve is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options across the series include manual or differential-pressure drains, a 5 um filter element (code W), psi or bar gauge scales, G (BSPP) or NPT threads, an external round gauge, and a reverse/check valve. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR400C10AJF1T 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) |
Placed on the air line feeding a small stamping or riveting press, it strips water and swarf from shop air and holds the regulator setting steady so the press cylinder strokes consistently through the shift.
On a carton-sealing or bagging line, the unit conditions air to the sealing-jaw and clamp cylinders: the 40 um element keeps grit out of valve seats while the automatic drain keeps condensate out of the actuators.
Mounted at the drop feeding a robot gripper circuit, it regulates supply pressure to the gripper valves and drains accumulated water automatically, protecting the gripper hardware between cycles.
Choose the size by the flow your line needs: 200 through 600 step up in port and capacity, and this 400 unit sits at the 3/8 in (NPT) level. Decide the drain first - automatic drain suits unmanned or hard-to-reach installations, manual drain suits attended points, and the differential-pressure default drains on a pressure drop. The filter grade here is the 40 um standard; specify code W for 5 um where finer particulate matters. Gauge scale (MPa, psi or bar) and thread (PT as the standard, G or NPT to order) are decodable choices, as is the bracket. Because flow is published as curves rather than a single rating, send us your application conditions 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 number, so we do not quote a figure here. Tell us your line pressure and the flow your equipment needs and we will confirm the sizing against the datasheet on request.
This code carries an automatic drain, so condensate collected in the polycarbonate bowl is discharged without anyone opening it - useful where the unit sits in an awkward spot or the line runs unattended. Manual-drain and differential-pressure versions are available in the same size if you prefer a different arrangement.
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.