The AirTAC GFR400C10AJC2K AirTAC Filter Regulator PT3/8 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 GFR400C10AJC2K 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 PT3/8 (3/8 in) PT-thread port, a 40 um standard filter element, an automatic drain that ejects collected condensate without manual attention, and a built-in reverse/check valve. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and the fitted external round gauge reads in psi. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl suits the size 400 frame.
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 choices (differential-pressure, automatic or manual), a 5 um element option (code W), gauge and scale options, and G or NPT thread variants. Flow is published as curves rather than a single rated figure; ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR400C10AJC2K AirTAC Filter Regulator PT3/8 |
|---|---|
| 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 air preparation for a packaging line: the 40 um element strips water and pipe scale before the air reaches cylinders and valves, while the regulator holds a steady working pressure for consistent case sealing and wrapping.
Supplying regulated air to conveyor diverters, stoppers and lifters along a production line, where the automatic drain keeps condensate out of the circuit without an operator having to bleed bowls each shift.
A maintenance drop at a workshop bench: the check valve protects the set pressure against upstream fluctuations, the psi gauge gives a direct reading for tool setup, and the 3/8 in port feeds impact tools and clamps.
Size 400 with a 3/8 in port sits in the upper-middle of the GFR range; step up to 600 or down to 300/200 depending on the flow your line needs - we will check the published flow curves against your demand before you order. Drain type is a real choice: this unit has an automatic drain, which suits unattended or hard-to-reach installations; manual and differential-pressure drains are available on other variants. The 40 um element is the standard grade; specify the W variant if you need 5 um filtration. The fitted round gauge reads psi; square embedded gauges and MPa or bar scales are alternatives. PT is the standard thread on this model, with G (BSPP) and NPT available as order options. A mounting bracket is not included with this code (J); order one separately if panel or wall mounting is needed.
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 there is no honest one-line figure we can quote. Send us your line pressure, set pressure and required air consumption, and we will confirm the sizing from the datasheet curves on request before you order.
This code carries the automatic drain (A), which discharges collected condensate from the bowl on its own - useful where the unit is mounted in a cramped or infrequently visited spot. The GFR family is also available with a manual drain (M) or the differential-pressure drain (blank), which are separate order codes on the same size 400 body.
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.