The AirTAC GFR400C10AJC2T 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 GFR400C10AJC2T is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This 400-size unit is threaded NPT3/8 (3/8 in). It carries a 40 um standard filter element, an automatic drain that empties collected condensate from the polycarbonate bowl without manual attention, and a fitted round pressure gauge reading in psi. The standard regulator adjusts outlet pressure across 0.15-0.9 MPa (20-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi) and a working temperature range of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR series is offered in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and with choices of drain type, filter grade (40 um standard, 5 um optional), gauge style and scale, thread (PT standard; G and NPT as order options) and bracket. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet for your application.
| Model | GFR400C10AJC2T 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) |
Point-of-use conditioning on a machining centre's compressed-air drop: the 40 um element strips water and chips of scale before they reach solenoid valves, while the regulator holds a steady setting for clamps and tool changers. The automatic drain suits a cabinet-mounted bowl that is not checked every shift.
Feeding cylinders and grippers on a bottling or carton-packing conveyor. Clean, regulated air keeps cylinder stroke timing consistent from start-up to end of shift, and the psi gauge lets line staff verify the setting at a glance during changeover.
A 3/8 in branch off the main header serving impact wrenches, air motors and blow guns at a workshop bench. The filter-regulator in one body saves panel space, and the automatic drain copes with condensate carried over from the main line.
Size and port set the capacity: the 400 size with its 3/8 in NPT port suits lines above the 300 class, but always match the step to the flow your circuit needs. This unit pairs an automatic drain - useful where the bowl is hard to reach or the line runs unattended - with the 40 um standard element; choose the 5 um W-grade option if finer particulate capture matters. The fitted round gauge reads psi; square embedded gauges and MPa or bar scales are also available. PT is the standard thread, with G (BSPP) and NPT as order options; this code specifies NPT. No mounting bracket is included on this configuration (code J).
Sizing against flow is the one step we recommend confirming with us: the catalogue publishes flow as curves, not a single rating, so send us your application details and we will confirm the datasheet figures 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 GFR400 series as curves, not as a single rated figure, so we do not quote a number that could mislead your sizing. Tell us your application and required flow, and we will confirm the datasheet curve figures for this exact 3/8 in NPT configuration on request before you order.
The A in the code specifies an automatic drain: condensate collected in the polycarbonate bowl is discharged without anyone opening a valve, which suits bowls mounted in awkward or unattended positions. The alternatives in the series are manual drain (code M) and the differential-pressure default; the automatic drain version also carries the 0.15-0.9 MPa (20-130 psi) regulation range.
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.