The AirTAC GFR400C10AJF2 AirTAC Filter Regulator PT3/8, Auto Drain 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 GFR400C10AJF2 is an AirTAC GFR-series filter regulator: a single body that removes water and particulate from compressed air and then holds the downstream pressure at your setpoint. This size 400 unit carries a PT3/8 (3/8 in) port, the automatic drain (code A), the standard 40 um filter element and a square pressure gauge reading in psi. The standard regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C, non-freezing. The bowl on this size is polycarbonate (PC), no mounting bracket is fitted (code J) and no reverse/check valve is included.
This is a genuine AirTAC part. The GFR family runs from size 200 to 600 with larger ports and more flow capability at each step, and the catalogue offers drain choices, a 5 um element (code W), gauge scales in MPa, psi or bar, and G or NPT threads as order options. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your operating conditions before ordering.
| Model | GFR400C10AJF2 AirTAC Filter Regulator PT3/8, Auto Drain |
|---|---|
| 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) |
Filtered, regulated air to the pneumatic clamps on a machining centre fixture, holding a steady clamp pressure while the square psi gauge gives the operator a local reading at the machine.
Supplying diverter and stopper cylinders on a packaging conveyor, where the automatic drain clears condensate collected in the line before it can carry over into the directional valves.
Point-of-use air preparation for laboratory automation skids and sample-handling actuators, keeping a stable pressure setpoint for repeatable pneumatic movements.
Size and port are the first decision: 200, 300, 400 and 600 step up in port and flow capacity, so match the 3/8 in PT port here against your line size and air demand - and because AirTAC publishes flow as curves rather than one rated number, ask us to check the curve against your application before ordering. Drain type is decodable: this unit has the automatic drain (A); the family default is differential-pressure and a manual drain is also available, which widens the regulator adjustment range to 0.05-0.9 MPa (7-130 psi) versus 0.15-0.9 MPa (20-130 psi) on this unit. The 40 um element is standard; specify W for the 5 um grade if downstream equipment needs finer filtration. The square gauge is fitted reading psi (code F2); MPa or bar scales and an external round gauge are options. PT thread is the standard; G (BSPP) and NPT are order options, and the J code means no mounting bracket is fitted.
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 GFR flow as performance curves rather than a single rated figure, so we do not quote a number here. Tell us your working pressure and required flow and we will confirm the sizing against the datasheet curves before you order.
The A in the code fits the automatic drain, which discharges collected condensate without anyone opening the bowl. The GFR family also comes with the differential-pressure drain (the default) or a manual drain; note the regulator adjustment range is 0.15-0.9 MPa (20-130 psi) with the automatic or differential drain and 0.05-0.9 MPa (7-130 psi) with the manual drain.
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.