The AirTAC GFR400C15AJC2WG AirTAC Filter Regulator G1/2, 5 um 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 GFR400C15AJC2WG is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This 400-size unit carries a G1/2 (BSPP) port, an automatic drain that ejects collected condensate without manual attention, a 5 um filter element one grade finer than the standard 40 um, and a round pressure gauge reading in psi. Maximum inlet pressure is 1.0 MPa (145 psi); with automatic drain, the regulator adjustment range is 0.15-0.9 MPa (20-130 psi). Operating temperature is -5 to 70 C (non-freezing). The bowl on this size is polycarbonate, no mounting bracket is fitted with this code, and no reverse/check valve is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options across the range for manual or differential-pressure drains, 40 um or 5 um elements, embedded square or external round gauges in MPa, psi or bar scales, PT, G or NPT threads, brackets and a reverse/check valve. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR400C15AJC2WG AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| 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) |
Feeds clean, pressure-steady air to the tool changer, clamps and pneumatic actuators on a machining center, where water carry-over or pressure drift would upset positioning and clamping repeatability.
Supplies filtered, regulated air to diverters, pushers and gripper cylinders on a bottling or carton packing line, keeping the 5 um element between the plant ring main and the machine's directional valves.
Sits at the head of a pneumatic panel driving process control valves, removing condensate and particulate ahead of the positioners and holding a set pressure with the psi gauge in view of the operator.
Size and port set the capacity: the 400 size with its 1/2 inch port sits in the upper-middle of the GFR range, one step above 300 and below 600, so step up or down a size when the required flow demands it. Choose the drain to match maintenance practice: automatic (this unit) clears condensate on its own, manual needs a routine push, and differential-pressure drains only as the element loads up. The 5 um element (code W) suits points of use needing finer air than the 40 um standard. The gauge on this unit is the external round type reading psi; embedded square gauges and MPa or bar scales are the other catalogue choices. Thread here is G (BSPP); PT is the standard and NPT is an order option, and a bracket can be added if the code omits it. 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 rather than a single rated number, so we do not quote a figure. Send us your application details and we will confirm the flow curve and the full datasheet figures on request before you order.
Both come straight from the code. The A position sets the automatic drain, which ejects collected condensate on its own instead of waiting for a manual push or a differential-pressure cycle. The W sets the 5 um element, one grade finer than the standard 40 um, for points of use that need cleaner air. If you would rather handle drainage manually or rely on the differential-pressure default, those variants exist in the same 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.