The AirTAC GFR40010C3T AirTAC Filter Regulator NPT 3/8 in 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 PT3/8" 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 GFR40010C3T is a size 400 filter regulator that removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration has a 3/8 in NPT port, the standard 40 um filter element, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and a round pressure gauge reading in bar. The polycarbonate bowl suits the 400 frame, and a mounting bracket is included for secure panel or wall fixing.
This is a genuine AirTAC part. The GFR series is offered in sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, a choice of drain types, a 5 um element (code W), gauge styles and scales, and G or NPT thread options. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures on request.
| Model | GFR40010C3T AirTAC Filter Regulator NPT 3/8 in |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (NPT 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 — round, bar 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. |
|---|---|
| 10 | Port size PT3/8". 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Mounted ahead of a pneumatic press station, the GFR40010C3T cleans water and debris from the shop air supply and holds a steady set pressure so the press cylinder strokes consistently through each shift.
On a packaging conveyor where sealing and flap-tuck cylinders run continuously, this unit filters condensate out of the supply and regulates line pressure, with the differential-pressure drain keeping the bowl clear without daily attention.
Feeding the workpiece-clamping circuit of a CNC machining centre, the unit delivers filtered air at a regulated setpoint, and the included bracket fixes it firmly beside the machine's air preparation panel.
Size 400 with a 3/8 in NPT port sits in the upper-middle of the GFR range; step up to size 600 for larger lines or down to 300/200 where flow demand is lighter. The 40 um element is the standard grade for general plant air; specify the 5 um W-code element where finer protection matters. The differential-pressure drain needs no operator attention, though automatic and manual drains are available in the series. Gauge scale and thread finish (PT standard, G or NPT to order) are decodable choices, and a bracket is included.
Because flow is published as curves rather than 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 GFR series as curves, not as a single rated number, so we do not quote a figure here. Contact us with your line pressure and demand and we will confirm the flow data from the datasheet for this size 400, 3/8 in unit before you order.
The trailing T in the code orders the NPT thread option instead of the PT standard, and C3 specifies the round external gauge with a bar scale. PT is the catalogue standard, while G and NPT are order options, and square-gauge or MPa/psi scales can be specified on other codes in the series.
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.