The AirTAC GFR30015ALC2WG AirTAC Filter Regulator G1/2, 5 um, Auto 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 GFR30015ALC2WG is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single 300-size body with a G1/2 (BSPP) port. This configuration carries the 5 um filter element (code W) for finer filtration than the standard 40 um grade, an automatic drain that expels collected condensate from the PC bowl without manual attention, and the low-pressure regulator type for applications that run at reduced downstream pressures. It is fitted with an external round gauge reading in psi, includes a mounting bracket, and is rated for a maximum inlet pressure of 1.0 MPa (145 psi) at -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 inch to 1 inch, and is offered with a choice of drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um optional), gauge style and scale, thread form (PT standard; G and NPT as order options) and bracket. Flow is published as curves rather than a single rating, so ask us to confirm sizing and the low-pressure adjustment range against your application before ordering.
| Model | GFR30015ALC2WG AirTAC Filter Regulator G1/2, 5 um, Auto |
|---|---|
| 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 | Low-pressure 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 — round, psi 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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. |
| (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 | GFR300 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
On a CNC fixture line, workpiece clamps often need a gentler, steady holding pressure than the main shop air delivers. This low-pressure-type filter regulator sits at the clamp circuit drop, cleans the air to 5 um and lets the setter dial in the clamp force on the psi gauge.
Carton sealers and bag-closing heads use short-stroke cylinders that run best at reduced pressure to avoid crushing product. Fed from a 1/2 inch drop, this unit filters the supply, drains condensate automatically between shifts, and holds the sealing cylinders at the set pressure.
Bench-top test rigs and lab pneumatic circuits need clean, dry air at a stable reduced pressure. Mounted at the bench drop, the 5 um element protects sensitive instruments and the psi round gauge gives operators a direct readout, with the automatic drain keeping the PC bowl clear.
Size and port set the air capacity: this unit is size 300 with a 1/2 inch port, one step up from 1/4 inch, so step up or down according to the flow your line needs - we confirm the flow curves for each size on request. The 5 um element (W) suits points of use that see finer contamination than the standard 40 um grade handles; choose 40 um for general upstream protection. Drain choice matters: the automatic drain here discharges condensate on its own, while differential-pressure (the default) and manual drains suit installations where periodic attention is acceptable. The round psi gauge (C2) gives a local pressure readout in imperial units; embedded square gauges with MPa, psi or bar scales are also available. Thread is G (BSPP) here; PT is the standard offering and NPT is an order option, so match the thread to your piping. A mounting bracket is included. Because flow is published as curves rather than a single rated figure, 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 figure, so we do not quote a number here. Tell us your application and we will confirm the flow curve and correct size from the datasheet on request.
The code A in GFR30015ALC2WG selects the automatic drain, which ejects collected condensate from the PC bowl without manual intervention - useful on machines that run unattended. The W selects the 5 um filter element, one grade finer than the 40 um standard, for points of use that need cleaner air. Both are factory options you can specify differently on other GFR300 models.
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.