The AirTAC GFR300-15AJF2WGK AirTAC Filter Regulator 1/2 in, 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 AirTAC GFR300-15AJF2WGK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit has a G1/2 (BSPP) port, a fine 5 um filter element, an automatic drain that vents collected condensate without manual attention, and an embedded square pressure gauge reading in psi. A reverse/check valve is fitted, and the standard-type regulator adjusts from 0.15 to 0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi). The polycarbonate bowl suits non-freezing compressed air from -5 to 70 C, and no mounting bracket is included with this code.
This is a genuine AirTAC part from the GFR300 series, one of four sizes (200, 300, 400, 600) spanning ports from 1/8 to 1 inch, with options including manual or differential-pressure drains, the 40 um standard element, G or NPT threads, alternative gauge scales, and bracket mounting. Rated flow is published as curves rather than a single figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR300-15AJF2WGK AirTAC Filter Regulator 1/2 in, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (G (BSPP) 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. |
| 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. |
| G | G (BSPP) 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) |
Feeds clean, pressure-controlled air to spray guns and atomising stations on a paint line, where the 5 um element helps keep water and particles out of the finish and the regulator holds a steady gun pressure.
Conditions and regulates the air feeding pneumatic pushers, stoppers and lift cylinders along a bottling or packaging conveyor, with the automatic drain handling condensate on a line that runs all shift.
Supplies regulated air to tool changers, clamps and air-blast nozzles on a CNC machining centre, where the check valve helps hold the downstream circuit and the psi gauge gives operators a local setpoint readout.
Size and port set the capacity: within the GFR line, size 300 with a 1/2 inch port sits in the mid range, while stepping up to size 400 or down to 200 changes both the port and the flow capacity, so match the size to your air demand. Drain type is a real maintenance choice: automatic (this unit) discharges condensate on its own, manual needs a periodic twist, and the differential-pressure default drains on a pressure drop. The 5 um element (code W) is the finer option against the 40 um standard - choose it where downstream valves and cylinders need cleaner air. The gauge here is the embedded square type reading psi; MPa and bar scales are available, and an external round gauge can be specified instead. Threads come as PT (standard), G or NPT to order, and a mounting bracket is optional. Because rated flow is published only as curves, not a single number, send us your flow and pressure requirements and we will confirm sizing from 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 this series as curves rather than a single rated figure, so we do not quote a number. Tell us your working pressure and required flow and we will confirm the sizing from the datasheet on request before you order.
The 5 um element (code W) is the finer option against the 40 um standard, suiting downstream valves and cylinders that need cleaner air. The automatic drain vents collected condensate without manual attention; note that with an automatic or differential-pressure drain the regulation range is 0.15-0.9 MPa (20-130 psi), while a manual-drain version widens the lower end to 0.05 MPa (7 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.