The AirTAC GFR400C10AC3WT AirTAC Filter Regulator 3/8 in NPT 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 GFR400C10AC3WT is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your setpoint in a single body. This size 400 unit is threaded 3/8 in NPT, carries a 5 um filter element (code W), an automatic drain that bleeds condensate from the PC bowl without manual attention, and a round pressure gauge reading in bar. The standard regulator covers 0.15-0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the unit operates from -5 to 70 C in non-freezing conditions.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, drain and filter-grade options, gauge styles and scales, and PT, G or NPT threads. A mounting bracket is included with this configuration. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR400C10AC3WT AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| 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) |
A conditioning point ahead of the directional control valves on a bottling or cartoning conveyor, where filtered, regulated air keeps cylinders and grippers cycling cleanly through every shift.
Point-of-cell supply for pneumatic clamps, tool changers and weld-gun actuation; the automatic drain handles bowl condensate in a cell that runs unattended, and the 5 um element protects fine pilot valves.
Regulating shop air to a machine tool's pneumatic circuit for tool clamping, chip doors and part ejection, with the bar gauge giving the operator a clear setpoint check at the panel.
Pick the size by port and demand: larger GFR sizes carry larger ports and more flow, and this size 400 unit steps up to a 3/8 in NPT thread. Filter grade is a real choice: 40 um is standard, while the 5 um element fitted here (code W) suits circuits that need finer particulate removal ahead of sensitive valves. Drain type matters too: the automatic drain on this unit vents condensate by itself, while manual and differential-pressure drain versions of the same frame are available. Gauge scales are offered in MPa, psi or bar - this unit reads bar - and threads can be ordered in PT (standard), G (BSPP) or NPT. A mounting bracket is included. Because flow is published as curves rather than a single rating, send us your flow and pressure requirements and we will confirm the right size 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 GFR400 flow as curves rather than a single rated figure, so we do not quote a number here. Send us your flow and working pressure and we will confirm the sizing from the datasheet on request.
The automatic drain (code A) vents accumulated condensate from the bowl on its own, which suits installations that are not checked daily. Manual and differential-pressure drain versions of the same GFR400 frame are available if you prefer to control draining yourself.
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.