The AirTAC GFR400C10AJC2WT AirTAC Filter Regulator NPT3/8 5 um 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 GFR400C10AJC2WT is an AirTAC GFR400 filter regulator: a single body that removes water and particulate from compressed air and then regulates downstream pressure, in that order. This configuration is sized for a 3/8 in NPT port, carries the fine 5 um filter element (the W grade, one step finer than the standard 40 um), drains condensate automatically, and is fitted with an external round gauge reading in psi. The standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl suits the 400 size, and no mounting bracket is included in this variant.
This is a genuine AirTAC part. The GFR family is published in four sizes (200, 300, 400, 600) with port options from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, gauge style and scale options, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR400C10AJC2WT AirTAC Filter Regulator NPT3/8 5 um |
|---|---|
| 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 cleaned, regulated air to the cylinders of a clamping or light-press station, where the 5 um element protects directional valves and the psi gauge lets setters dial in the clamp pressure.
Air preparation for conveyor-mounted carton sealers and labeling heads that run unattended shifts, using the automatic drain to clear condensate without a daily bowl check.
Supplying regulated air to bench-top test rigs and analytical equipment that need finer-than-standard filtration and a stable, locally adjustable pressure setpoint.
Size and port are the first decision: the 400 body with its 3/8 in NPT port suits lines drawing more air than a 300 unit, but the right step depends on the flow your circuit actually needs - ask us to check the published flow curve against your consumption before ordering. The 5 um element (code W) is the right choice where downstream valves, cylinders or instruments are sensitive to finer particles; the standard 40 um element remains available if coarse protection is enough. The automatic drain expels collected condensate without operator attention, which suits unmanned or hard-to-reach installations; manual and differential-pressure drain versions exist for other setups. The round psi gauge is fitted here; square embedded gauges and MPa or bar scales are alternatives. NPT is the thread on this unit, with PT and G available as order options, and a bracket can be added if this J-coded, bracket-less variant needs panel fixing.
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 rather than a single rated number, so we do not quote a figure that could mislead your sizing. Tell us your working pressure and air consumption and we will confirm the flow from the datasheet for this exact model on request.
The A in the code means condensate collected in the bowl is discharged automatically as it accumulates, so the unit does not depend on an operator opening the drain. That suits enclosed cabinets, rooftop or remote installations, and multi-shift lines. Manual-drain and differential-pressure-drain versions of the same GFR400 body are available if your maintenance routine prefers them.
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.