The AirTAC GFR400C15AJC2WK AirTAC Filter Regulator PT1/2, 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 GFR400C15AJC2WK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, in a single 400-size body. This configuration is built around a 1/2 in PT port, the finer 5 um filter element, an automatic drain that empties the polycarbonate bowl without manual attention, and a round pressure gauge reading in psi. A reverse/check valve is fitted to block backflow, and the unit is supplied without a mounting bracket.
This is a genuine AirTAC part from the GFR range, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in and PT, G (BSPP) or NPT threads. Max inlet pressure is 1.0 MPa (145 psi), the standard regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), and working temperature is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application.
| Model | GFR400C15AJC2WK AirTAC Filter Regulator PT1/2, 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) |
Conditioning the air feed to spray guns in a finishing booth: the 5 um element takes out water and fine particles that would spoil the finish, while the regulator holds a steady gun pressure read on the psi gauge.
Feeding cylinders and valves on a carton-forming or wrapping line: the regulator keeps a constant setting through repeated machine cycles, and the automatic drain clears condensate on a line that runs unattended.
Supplying a pneumatic actuator on a water-treatment or process skid: regulated pressure gives repeatable valve strokes, the check valve blocks backflow through the unit, and the automatic drain protects the actuator from collected water.
Size and port set the capacity: the 400 body with a 1/2 in PT port sits in the upper-middle of the GFR range (200/300/400/600), so step up or down a size if your line needs more or less air. Drain type matters: this unit has an automatic drain, which suits unattended duty; manual-drain versions widen the regulation range down to 0.05 MPa (7-130 psi) and differential-pressure drain is the catalogue default. The 5 um element (code W) is the finer option against the 40 um standard - choose it where downstream equipment is sensitive to fine particulate. Gauge style and scale, thread (PT standard; G and NPT are order options) and bracket choices are specified on related codes.
Because AirTAC publishes flow only as curves, not a single rated figure, send us your flow and pressure requirements and we will confirm the right size from the datasheet 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 GFR400 as curves rather than a single rated figure, so we do not quote a number here. Send us your required flow and working pressure and we will confirm sizing from the datasheet on request.
The W code selects the finer 5 um element against the 40 um catalogue standard, and the A code selects the automatic drain, which ejects collected condensate without manual attention - useful on plant that is not watched daily. On this auto-drain version the regulation range is 0.15-0.9 MPa (20-130 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.