The AirTAC GFR400C10AF2WG AirTAC Filter Regulator G3/8 5um 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 GFR400C10AF2WG is a GFR400-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure in a single body. This configuration has a G3/8 (BSPP) port, a 5 um filter element, an automatic drain, and an embedded square gauge reading in psi. The standard regulator adjusts from 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C (non-freezing). The bowl on this size-400 unit is polycarbonate (PC), a mounting bracket is included, and no reverse/check valve is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options across the range include manual and differential-pressure drains, a 40 um standard element, square or round gauges with MPa, psi or bar scales, PT, G or NPT threads, and bracket choices. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR400C10AF2WG AirTAC Filter Regulator G3/8 5um 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) |
Point-of-use air prep ahead of a CNC machine's solenoid valves: the 5 um element and automatic drain keep water and dirt out of the valves while the regulator holds a steady set pressure for clamping and actuation, with the psi gauge making the set-point easy to verify.
Feed spray guns on a finishing line: filtered and regulated air supports consistent atomisation, and the automatic drain handles condensate through shift changes without an operator bleeding the bowl between runs.
Supply diverters, stoppers and pusher cylinders on a packaging conveyor: the regulator keeps cylinder action predictable, the 5 um grade protects small pilot valves, and the automatic drain keeps condensate off the line without scheduled manual draining.
Choose the size by port and required flow: this size-400 unit takes a G3/8 port, and larger sizes in the family move more air. Drain type is a real choice - automatic (this unit, code A) ejects condensate by float without attention, manual needs an operator action, and the differential-pressure default drains on pressure drop. Filter grade: 40 um is standard; the W code fits a 5 um element, as here, for finer downstream protection. Gauges can be the embedded square type (fitted here, psi scale) or an external round gauge, with MPa, psi or bar scales. Thread is G (BSPP) on this unit; PT is the standard and G/NPT are order options. A bracket is included unless the J code omits it. Because flow is published as curves, not a single rating, 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.
AirTAC publishes flow for the GFR400 as curves, not a single rated figure, so we do not quote a number here. Tell us your line pressure and the air demand of your equipment, and we will confirm the sizing from the datasheet on request before you order.
The W code fits a 5 um element in place of the 40 um standard, giving finer protection for downstream valves and tools. The A code fits an automatic drain, so condensate is ejected by float without manual bleeding; manual and differential-pressure drains remain available elsewhere in the GFR family.
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.