The AirTAC GFR400C15AC2WK AirTAC Filter Regulator 1/2 in, 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 GFR400C15AC2WK is a size 400 filter regulator: it removes water and particulate from compressed air and holds downstream pressure, in a single body. This configuration carries a 1/2 in PT port, a 5 um filter element (the 40 um standard element is also available in the range), an automatic drain, a round pressure gauge reading in psi, a reverse/check valve, and a mounting bracket. It is a standard-type regulator with an adjustment range of 0.15-0.9 MPa (20-130 psi), a maximum inlet pressure of 1.0 MPa (145 psi), and a working temperature of -5 to 70 C, non-freezing. At size 400 the bowl is polycarbonate (PC).
This is a genuine AirTAC part from the GFR filter-regulator family, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in. Across the range you can choose drain type (differential-pressure, automatic or manual), filter grade (40 um standard or 5 um), gauge style and scale (embedded square gauge standard, external round gauge optional, MPa/psi/bar), thread (PT standard, G and NPT as order options), and bracket. Flow is published as curves rather than a single rated figure, so we confirm datasheet and sizing figures on request.
| Model | GFR400C15AC2WK AirTAC Filter Regulator 1/2 in, 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) |
Feeding filtered, regulated air to the clamps, tool-change cylinders and purge jets on a machining centre, with the 5 um element protecting downstream valves from fine particulate.
Conditioning the air that drives pick-and-place and carton-sealing cylinders on a packaging conveyor, with the automatic drain handling condensate through multi-shift running.
Serving as the point-of-use filter regulator at an assembly bench air drop, holding a steady set pressure to hand tools and small actuators while the psi gauge gives operators a local reading.
Start with the size and port: GFR400 is the 3/4-1/2 in class in the GFR range (sizes 200/300/400/600), and the port step should be chosen against the air demand of the circuit - step up a size when downstream consumption is high or the supply run is long. Then set the options this code fixes: the 5 um element (W) suits points of use that need finer particulate control than the 40 um standard; the automatic drain (A) ejects condensate without manual attention; the round psi gauge (C, scale 2) gives a local reading in psi; and the K option adds a reverse/check valve. PT is the standard thread; G and NPT are order options, and the bracket is included.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, so we do not quote a flow figure here. Ask us to confirm the flow and datasheet figures against your application before you order.
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 family as characteristic curves rather than a single rated figure, so we do not state a flow number. Tell us your application and we will confirm the flow and datasheet figures for this unit on request before you order.
The 5 um element (code W) is the finer of the two published grades - the family standard is 40 um - so it suits points of use that see finer particulate. The automatic drain (code A) discharges collected condensate on its own, which is useful where the unit cannot be drained by hand regularly. Both are catalogue options on the GFR400.
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.