The AirTAC GFR400C10AJC2GK AirTAC Filter Regulator G3/8 Auto Drain 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 GFR400C10AJC2GK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, in one body. This unit is built on the GFR400 size with a G3/8 (3/8 in) port, a 40 um filter element, and an automatic drain that discharges collected condensate from the polycarbonate bowl without operator attention. Regulation is the standard type with an adjust 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). A round gauge on a psi scale is fitted, a reverse/check valve is included, and no mounting bracket is supplied.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and options across the family include manual or differential-pressure drains, a 5 um element (code W), embedded square or external round gauges on MPa, psi or bar scales, G or NPT threads, and a mounting bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and flow figures for your application on request.
| Model | GFR400C10AJC2GK AirTAC Filter Regulator G3/8 Auto Drain |
|---|---|
| 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 clean, moisture-free and pressure-stable air to the pick-and-place and carton-forming cylinders on a packaging conveyor, so the sequence holds its setting through a full shift.
Conditioning the air that actuates workpiece clamps and tool-change cylinders on a machining cell, where water in the line or drifting pressure would loosen fixtures mid-cycle.
Installed at an air drop on an assembly floor to filter and regulate supply to hand-held pneumatic tools and small actuators, with the automatic drain handling condensate at an unattended station.
Choose the size and port step against the air your application consumes: GFR200 through GFR600 step up in port from 1/8 to 1 in, and this GFR400 unit sits at 3/8 in with a G (BSPP) thread - PT is the standard thread, while G and NPT are order options. Drain type is a real choice: automatic (this unit) suits unattended installations, manual (code M) suits periodic checks, and differential-pressure (blank) drains the bowl only when the pressure drop across the element calls for it. Filter grade is 40 um standard or 5 um with code W; the gauge scale can be MPa, psi or bar; and a bracket can be specified where the code carries one. 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.
Flow for the GFR400 series is published in the AirTAC catalogue as curves rather than a single rated number, so we do not quote a flow figure here. Send us your air consumption and working pressure and we will confirm from the datasheet whether this 3/8 in unit is correctly sized for the job - on request.
The A in the code sets an automatic drain: condensate collected in the bowl is discharged without operator attention. Manual (code M) and differential-pressure (blank) drains are available across the GFR family if your maintenance routine calls for a different approach.
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.