The AirTAC GFR400C15AJC2WTK AirTAC Filter Regulator NPT1/2 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 GFR400C15AJC2WTK is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built around a 1/2 in NPT port, a 5 um filter element (the tighter of the two catalogue grades), and an automatic drain that bleeds collected condensate from the polycarbonate bowl without manual attention. Regulation is the standard type with a 0.15-0.9 MPa (20-130 psi) adjustment range, a maximum inlet pressure of 1.0 MPa (145 psi), and an operating temperature of -5 to 70 C (non-freezing). A round gauge scaled in psi is fitted so set pressure can be read directly, and the built-in reverse (check) valve holds downstream pressure if the upstream supply is lost. No mounting bracket is included in this version.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and offers a choice of drain type (differential-pressure, automatic or manual), 40 um or 5 um filtration, gauge style and scale, and PT, G or NPT thread. Flow for this series is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures for your application on request.
| Model | GFR400C15AJC2WTK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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 the pneumatic clamps on a machining centre fixture: the 5 um element keeps spool valves clean while the regulator holds a steady clamp pressure, and the check valve keeps the fixtures clamped if shop air drops.
Supplies the air cylinders that kick cartons between conveyor lanes on a packaging line, with the automatic drain handling condensate during long unattended shifts and the psi gauge letting line staff verify set pressure at a glance.
Regulates supply to the gripper cylinders on a laboratory sample-handling robot, where the 5 um grade protects fine control valves and the check valve prevents the arm from sagging during an air-supply interruption.
Start with the port and size step: this unit is size 400 with a 1/2 in NPT port, one step up from the 3/8 in size 300, so move up a size if your line may need more air later. On drainage, the automatic drain fitted here suits unattended duty; a manual drain suits supervised cells, and the differential-pressure default is the catalogue standard. The 5 um element (code W) is the tighter option versus the 40 um standard - choose it when downstream valves or instruments need cleaner air. The round psi gauge fitted here is the external option; an embedded square gauge scaled in MPa, psi or bar is also available. Thread is NPT on this unit, with PT (standard) and G as order options, and this version omits the mounting bracket. Because flow for the GFR series 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, not as a single rated number, so we do not quote a figure here. Send us your application details and we will confirm the flow curve and datasheet figures for this 1/2 in size 400 unit on request.
The A in the code specifies an automatic drain, which discharges condensate from the bowl without operator attention. The catalogue also offers manual drain and the differential-pressure default, and the drain choice affects the regulator adjustment range: 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.