The AirTAC GFR400C10AF2G AirTAC Filter Regulator G3/8 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 GFR400C10AF2G is a size 400 filter regulator: water and particulate filtration plus downstream pressure regulation combined in one body. This configuration is ordered with a G3/8 (BSPP) port, an automatic drain that bleeds collected condensate from the bowl without manual attention, a 40 um standard filter element, and an embedded square gauge reading in psi. The regulator is the standard type with a 0.15-0.9 MPa (20-130 psi) adjustment range, a bracket is included for mounting, and no reverse/check valve is fitted. 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 is polycarbonate (PC).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with port options from 1/8 to 1 inch, a choice of automatic, manual or differential-pressure drain, a 5 um (code W) element option, gauge scale choices, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR400C10AF2G AirTAC Filter Regulator G3/8 |
|---|---|
| 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 on a CNC machining cell: the 40 um element strips water and chips of particulate from the shop air before it reaches solenoid valves and actuators, while the regulator holds a steady set pressure for clamping and tool-change circuits. The automatic drain keeps the bowl clear through unattended shifts.
Mounted at the drop to a packaging conveyor's pneumatic cylinders and diverters, this unit filters incoming plant air and regulates it to the pressure the cylinder sizing was designed around. The included bracket fixes it to the machine frame beside the drop, and the psi gauge lets technicians set and verify the line pressure at a glance.
On a robotic welding cell, the G3/8 port feeds grippers and weld-gun clamping actuators through one conditioned takeoff: filtered to 40 um against welding-shop moisture and scale, and regulated to a stable pressure so grip force stays repeatable cycle after cycle. The automatic drain suits a cell that runs without an operator stationed alongside.
Start with the size and port: GFR comes in 200, 300, 400 and 600, stepping up in port and flow capacity, so match the 3/8 G-port of this size 400 unit against your line size and air demand. Then pick the drain: automatic (this unit) suits points that are left unattended, manual suits periodically serviced stations, and differential-pressure drain is the catalogue default. Choose the 40 um standard element for general plant air, or the 5 um W option where finer particulate removal matters. Gauge scale (MPa, psi or bar - this unit reads psi) and thread (PT is the standard; G and NPT are order options) are also decodable choices, and a bracket can be included or omitted.
One honest note before you order: AirTAC publishes G-series flow as curves, not as a single rated number, so we cannot quote a rated flow here. Send us your application details and we will confirm the sizing from the datasheet before you commit.
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 capacity as curves in the catalogue rather than as a single rated figure, so there is no one rated flow number we can honestly quote. Send us your application - line size, downstream consumption and required pressure - and we will confirm the sizing from the datasheet on request before you order.
The A in the code GFR400C10AF2G selects the automatic drain, which discharges collected condensate from the bowl on its own - useful where the unit is mounted in a hard-to-reach spot or runs unattended. The catalogue alternatives are manual drain (you bleed the bowl yourself at service intervals) and the differential-pressure drain, which is the default when no drain letter is coded.
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.