The AirTAC GFR40015AJF2WTK AirTAC Filter Regulator NPT1/2 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/2" ports, a automatic 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 GFR40015AJF2WTK is an AirTAC GFR400 filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single body. This configuration is built for a 1/2 in NPT port, carries a 5 um filter element for finer air cleaning than the standard 40 um grade, and drains condensate automatically, so the bowl does not depend on someone opening a manual drain. It regulates from 0.15-0.9 MPa (20-130 psi), tolerates a maximum inlet pressure of 1.0 MPa (145 psi), and operates from -5 to 70 C in non-freezing conditions. The embedded square gauge reads in psi, a reverse/check valve is fitted to hold the downstream setting, and the unit is ordered without a mounting bracket. The polycarbonate bowl suits the 400 size; only the 600 size uses an aluminium alloy bowl.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and each size can be ordered with your choice of drain type, filter grade, gauge style and scale, thread (PT standard, G and NPT as options), bracket and reverse valve. Published flow data for these units is given as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR40015AJF2WTK AirTAC Filter Regulator NPT1/2 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
|---|---|
| 15 | Port size PT1/2". This body offers 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeds clean, regulated air to the tool-clamp, chip-blast and actuator circuits of a CNC machining centre, with the 5 um element protecting fine pneumatic components from water and particulate carryover.
Conditions the air feeding spray guns on a paint line, where the 5 um grade and a steady regulated pressure help keep finish quality consistent across a shift.
Sits at the drop of a packaging or palletising conveyor to regulate the supply to cylinders and grippers, with the automatic drain handling condensate on a line that runs unattended.
Start with the port and size step: this unit is a size 400 with a 1/2 in NPT port, the right choice when your line size and expected air demand sit above the 3/8 in (size 300) step. Because flow for G-series units is published as curves and not as a single rated number, send us your application details and we will confirm the sizing against the datasheet before you order. The choices that remain are genuinely yours to make: drain type (this unit has the automatic drain; differential-pressure and manual are the alternatives), filter grade (this one carries the 5 um W element instead of the 40 um standard), gauge style and scale (this unit has the embedded square gauge scaled in psi; MPa, bar and an external round gauge are available), thread (PT is the standard, G and NPT are order options), and bracket (this configuration is ordered without one).
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as performance curves rather than a single rated figure, so there is no one rated flow number we can honestly quote. Tell us your line pressure, downstream demand and acceptable pressure drop, and we will confirm the datasheet curve figures for this exact unit on request before you order.
The code spells it out: W selects the 5 um filter element where the standard grade is 40 um, and A selects the automatic drain in place of the default differential-pressure drain. The 5 um element suits applications that need finer cleaning, and the automatic drain ejects collected condensate without manual attention. Both choices can be reordered in the alternative configuration if your application changes.
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.