The AirTAC GFR400C10AF2WGK 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 GFR400C10AF2WGK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your setpoint in one compact body. This size 400 unit is threaded G3/8 (3/8 in) and is ordered with the 5 um filter element instead of the standard 40 um grade, an automatic drain that ejects collected condensate without manual attention, an embedded square gauge reading in psi, and a reverse (check) valve. A mounting bracket is included, the bowl on size 400 is polycarbonate (PC), the maximum inlet pressure is 1.0 MPa (145 psi), the regulating range on this automatic-drain configuration is 0.15-0.9 MPa (20-130 psi), and the service temperature is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and each size can be ordered with manual, automatic or differential-pressure draining, a 40 um or 5 um element, an embedded square gauge or an optional external round gauge with MPa, psi or bar scale, with or without a reverse/check valve, and in PT (standard), G or NPT thread. Flow is published as capacity curves rather than a single rating, so ask us to confirm figures from the datasheet for your application.
| Model | GFR400C10AF2WGK 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) |
Point-of-use conditioning for a CNC cell: the 5 um element protects solenoid valves and cylinders from water and particulate while the regulator holds a steady setpoint to the clamping and tool-change circuits, with the psi gauge giving a visible setting at the machine.
Conditioning the supply to case sealers, baggers and stopper cylinders on a packaging conveyor: clean, regulated air keeps valve spools and cylinder seals working, and the automatic drain handles condensate through long unattended shifts.
A filter regulator at each workbench drop in an assembly plant: operators get filtered air at a stable pressure for air screwdrivers, riveters and pneumatic clamps, with the square gauge showing the station setpoint at a glance.
The real choices on this family: step through sizes 200/300/400/600 so the port (G3/8 here) matches the air demand of your line - the catalogue publishes flow as curves, not a single rating, so send us your demand and we will confirm the sizing before you order. Choose the drain: automatic (this unit) for unattended condensate removal, manual for periodic draining, or differential-pressure as the default. Choose the element: 40 um standard or 5 um (code W) where finer filtration is needed - this unit carries the 5 um grade. Gauge options are the embedded square gauge in MPa, psi or bar scale (psi here) or an optional external round gauge; the reverse/check valve (code K) can be included or omitted; a bracket is included on GFR; PT is the standard thread with G and NPT as order options.
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 capacity for the GFR400 as flow curves rather than a single rated figure, so we do not quote a number here. Tell us your line pressure and air demand and we will confirm the sizing from the datasheet on request.
The W code orders the 5 um element instead of the standard 40 um grade, for finer protection of downstream valves and tools, and the A code orders the automatic drain, which expels collected condensate without manual attention. If you prefer the standard 40 um grade, or a manual or differential-pressure drain, the same size 400 body is available in those configurations.
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.