The AirTAC GFR400C10C3T AirTAC Filter Regulator NPT3/8, 40 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 GFR400C10C3T is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has a 3/8 in NPT port, a 40 um standard filter element, a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough, and a fitted round pressure gauge reading in bar. The standard regulator covers 0.15-0.9 MPa (20-130 psi) of adjustment, and maximum inlet pressure is 1.0 MPa (145 psi). Operating temperature is -5 to 70 C (non-freezing), and the polycarbonate bowl suits the 400 frame.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, optional 5 um (code W) elements, automatic or manual drains, square or round gauges with MPa, psi or bar scales, and G (BSPP) or NPT threads in place of the PT standard. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR400C10C3T AirTAC Filter Regulator NPT3/8, 40 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 ahead of the press counterbalance and clamping cylinders: the 40 um element keeps scale and condensed water out of the valve stack while the regulator holds a steady set pressure for consistent die clamping.
Mounted at the drop feeding stopper cylinders and pusher actuators on a carton packaging conveyor, giving the line a single body that cleans the air and holds the pressure the diverters were set up with.
Installed on the service drop feeding a CNC machining centre's air blast and tool-change circuit, where the differential-pressure drain handles condensate continuously and the bar gauge lets the setter verify set pressure at a glance.
Size 400 with a 3/8 in port sits in the middle of the GFR range; step up to 600 or down to 300/200 depending on the flow your line needs, and confirm the step against the published flow curves before ordering. Drain choice is real: differential-pressure (this code) needs no attention during operation, automatic drains on a cycle, and manual drains (0.05-0.9 MPa adjustment range) suit intermittent duty. The 40 um element is standard; specify the W code for 5 um where finer particulate removal matters. This unit carries a round gauge reading in bar; square gauges and MPa or psi scales are catalogue options. Thread here is NPT; PT is the standard and G (BSPP) is also orderable as a specification option. A mounting bracket is included.
Flow is published as curves, not a single rating, so 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 filter-regulator flow as curves rather than a single rated figure, so we do not quote a rated flow number for this unit. Send us your inlet pressure, set pressure and required flow, and we will confirm the sizing against the datasheet curves on request before you order.
Yes. Gauge scale is a decodable option in the GFR range: scale 1 reads MPa, scale 2 reads psi and scale 3 reads bar, so this C3 code carries the round gauge with the bar scale. Square embedded gauges and the other scales are catalogue specification options you can order instead.
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.