The AirTAC GFR400C10C2WK AirTAC Filter Regulator 3/8 in PT, 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 AirTAC GFR400C10C2WK is a filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure at your set point. This 400-size unit has a PT3/8 port, the finer 5 um filter element (W code), a differential-pressure drain, a standard regulator with an adjustment range of 0.15-0.9 MPa (20-130 psi), an external round gauge reading in psi, and a reverse (check) valve (K code). The bowl is PC (polycarbonate), a mounting bracket is included, maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drains, 40 um standard or 5 um (W) filtration, embedded square or external round gauges in MPa, psi or bar scales, G (BSPP) and NPT thread options, and a check-valve variant. Rated flow is published as curves rather than a single figure, so ask us to confirm sizing and datasheet figures for your application.
| Model | GFR400C10C2WK AirTAC Filter Regulator 3/8 in PT, 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) |
Point-of-use filter regulator ahead of a machine tool's pneumatic valves and clamping fixtures, cleaning water and swarf-laden shop air out of the supply and holding a steady set pressure for repeatable clamping.
Conditioning the air feeding carton-sealer and case-erector cylinders on a packaging line, keeping condensate and particles out of the cylinders and holding the pressure the seal and fold mechanisms were set up for.
Supplying clean, regulated air to test-bench fixtures and instrument actuation in a lab, where the 5 um element and a visible psi gauge let technicians keep the bench at its calibrated set point.
Within GFR400 the connection is 3/8 in PT; step to size 200, 300 or 600 if your line needs a different port. Drain choices are differential-pressure (this unit), automatic (A) or manual (M); filtration is 40 um standard or 5 um with the W code, as fitted here. Gauges are either the embedded square type or an external round gauge in MPa, psi or bar scales - this unit carries a round psi gauge. Thread is PT as standard, with G (BSPP) and NPT as order options, and the bracket can be deleted with a J code. Because rated flow is published as curves rather than a single number, 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 G-series flow as curves, not as a single rated figure, so we do not quote a number here. Send us your application conditions and we will confirm the flow curve and sizing from the datasheet on request.
K means a reverse (check) valve is fitted on this unit. The same model ordered without the K code does not carry one, so include K if your circuit needs it.
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.