The AirTAC GFR30015AF2WK AirTAC Filter Regulator PT1/2 5 um Auto Drain 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 AirTAC GFR30015AF2WK is a 300-size filter regulator that cleans compressed air and holds downstream pressure in one body. This configuration carries a 5 um filter element for finer water and particulate removal than the standard 40 um grade, an automatic drain that expels collected condensate without manual attention, an embedded square gauge reading in psi, and a reverse/check valve that holds the downstream setting if upstream supply is interrupted. It connects via PT1/2 ports and handles a maximum inlet pressure of 1.0 MPa (145 psi), with a regulation range of 0.15-0.9 MPa (20-130 psi). Operating temperature is -5 to 70 C, non-freezing. The polycarbonate bowl suits this size; only the 600 size uses an aluminium alloy bowl.
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, in PT standard thread plus G and NPT options, with manual, automatic or differential-pressure drains, 40 um or 5 um elements, and gauge or no-gauge builds. Flow for this series is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR30015AF2WK AirTAC Filter Regulator PT1/2 5 um Auto Drain |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (PT 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.
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 08 = PT1/4", 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. |
| (blank) | Mounting bracket included. |
| (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. |
| (blank) | PT 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 | GFR300 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding clean, regulated air to a machining centre's pneumatic tool-changer and clamping circuits, where the 5 um element protects close-tolerance valves from fine particulate and the check valve holds clamp pressure through supply dips.
Supplying the cylinders and air jets on a packaging conveyor, with the automatic drain clearing condensate on a line that runs unattended across shifts and the psi gauge letting operators verify set pressure at a glance.
Conditioning the air drop ahead of spray guns in a finishing booth, where the 5 um grade keeps moisture and fine dirt out of the finish and the regulator holds a steady gun pressure through the day.
Step up or down through the 200/300/400/600 sizes to match the port and flow band your line needs; this unit sits at the 300 size with PT1/2 ports. Choose the drain to suit attendance: automatic (as here) where nobody will visit the unit daily, manual where a technician drains on schedule, or differential-pressure for the catalogue default behaviour. Pick the 5 um element (code W, as fitted here) when downstream valves or instruments want finer air than the standard 40 um. Gauge scale can be MPa, psi or bar - this build reads psi - and the reverse/check valve (code K) is worth specifying wherever a supply dip must not dump the set pressure. PT is the standard thread; G and NPT are order options. Flow is published as curves, not a single rating, so send us your application and we will confirm sizing against the datasheet before you order.
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 GFR300 series as curves, not as a single rated figure, so we do not quote a number that could mislead your sizing. Send us your application details and we will confirm the datasheet flow curves and help you check the 300 size against your demand before you order.
The standard GFR300 uses a 40 um element and a differential-pressure drain; the W in the code selects the finer 5 um element, and the A selects the automatic drain that ejects condensate on its own. The F2 adds the square gauge reading in psi and the K adds a reverse/check valve. If you would rather drain on a maintenance schedule, the manual-drain version of the same 300-size unit is available.
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.