The AirTAC GFR400C10AC2WGK AirTAC Filter Regulator G3/8, 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 AirTAC GFR400C10AC2WGK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, in one body. This configuration sits on the size 400 housing with a G3/8 (BSPP) port, a 5 um filter element for finer filtration than the standard 40 um grade, and an automatic drain that clears condensate from the polycarbonate bowl without manual attention. A round pressure gauge reading in psi is fitted, and a reverse (check) valve is built in.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port options from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, and PT, G or NPT threads. Rated inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating; ask us and we will confirm the datasheet figures for your application.
| Model | GFR400C10AC2WGK AirTAC Filter Regulator G3/8, 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) |
Filtered, regulated air at the machine feed keeps tool-changer cylinders and pneumatic clamps on a CNC machining centre working off a clean, steady supply; the 5 um element and check valve suit a dedicated drop off the shop main.
On a packaging line running sealing heads and pick-and-place cylinders, the GFR400 holds a set working pressure downstream while the automatic drain clears condensate from the bowl without a daily walk-round.
For lab benches and analytical instruments that need particulate-free air at a fixed pressure, the 5 um grade and psi gauge give a clean, readable supply point at a 3/8 inch connection.
Start with the port step: within the GFR range, size 400 carries 3/8 inch ports, and moving up or down a size changes both the connection and the airflow path, so match the size to the flow your line needs. From there the real choices are: drain type (this unit has an automatic drain, which suits unattended installations; manual and differential-pressure drains are available), filter grade (5 um here versus the standard 40 um), gauge type and scale (this one has a round psi gauge fitted; embedded square gauges in MPa, psi or bar are the standard alternative), thread (PT is the standard; G and NPT are order options), and bracket. Because AirTAC publishes flow only as curves, not a single rated figure, send us your application details 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 GFR400 as performance curves rather than a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow figures from the datasheet on request.
The A in the code means the bowl drains condensate automatically, which suits installations that are not checked daily. Manual and differential-pressure drains are catalogue options across the GFR range - tell us which you prefer when ordering.
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.