The AirTAC GFR400C10AC3T 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 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 GFR400C10AC3T is a GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your setpoint in one body. This size 400 unit comes with 3/8 in NPT ports, a 40 um standard filter element, an automatic drain that ejects collected condensate without manual attention, a round pressure gauge reading in bar, and a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C, non-freezing. The size 400 bowl is polycarbonate.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and options including manual or differential-pressure drains, a 5 um element (code W), embedded square or external round gauges with MPa, psi or bar scales, and G (BSPP) or NPT threads alongside the PT standard. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR400C10AC3T AirTAC Filter Regulator NPT 3/8 in |
|---|---|
| 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) |
Feeding filtered, regulated air to the tool-change clamps and pneumatic actuators on a CNC machining centre, with the automatic drain clearing condensate from a humid compressor room without a trip to the bowl.
Holding steady supply pressure to the pick-and-place cylinders and sealing jaws on a packaging line, with 40 um filtration protecting the directional valves and fittings upstream of the actuators.
Point-of-use pressure control for clamping fixtures and air-driven assembly tools at an automotive cell, keeping setpoint pressure stable as stations cycle on and off the same drop.
Size 400 with 3/8 in NPT ports sits in the middle of the GFR range; step up or down through sizes 200, 300, 400 and 600 as your port and flow demand requires. This configuration is ordered with an automatic drain; manual and differential-pressure drain versions are available, and note that the regulator range is 0.15-0.9 MPa (20-130 psi) on automatic and differential-pressure units versus 0.05-0.9 MPa (7-130 psi) on manual-drain units. Filtration is the 40 um standard element, with a 5 um element (code W) available where finer protection is needed. The gauge on this code is a round gauge with a bar scale; embedded square gauges and MPa or psi scales are alternatives. Thread is NPT here, ordered as a catalogue option - PT is the standard and G (BSPP) is also available - and the mounting bracket is included. Flow is published as curves, not a single rating, so 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 rather than a single rated figure, so we do not quote a rated flow number here. Send us your application details and we will confirm the datasheet and check the published curve against your required flow before you order.
This unit is ordered with an automatic drain, which ejects collected condensate without attention - useful where the bowl is mounted out of easy reach. Manual and differential-pressure drain versions are available in the same GFR400 series. Note the regulator range differs by drain type: automatic and differential-pressure units adjust 0.15-0.9 MPa (20-130 psi), while manual-drain units adjust 0.05-0.9 MPa (7-130 psi).
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.