The AirTAC GFR30015ALF2W AirTAC Filter Regulator PT1/2, 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 AirTAC GFR30015ALF2W is a 300-size filter regulator that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 1/2 in PT port, a 5 um filter element (the finer of the two published grades), an automatic drain that expels collected condensate without manual attention, and an embedded square gauge reading in psi. It is the low-pressure type, intended for circuits set well below standard working pressure; its exact adjustment range is not published, so confirm it with us against your setpoint.
This is a genuine AirTAC part. The GFR line is offered in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, square or round gauges with MPa, psi or bar scales, G or NPT thread options, and bracket or no-bracket mounting. Flow is published as curves rather than a single rating, so we confirm datasheet figures on request.
| Model | GFR30015ALF2W AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| 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 | 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 — square, 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). |
| 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. |
| (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) |
Filtered, regulated air to clamp and fixture cylinders on a CNC machining cell, with the 5 um element protecting the clamping valve and the square psi gauge giving the setter a direct readout at the machine.
Supplying a cartoning or wrapping machine's low-pressure actuation circuit, where the automatic drain handles condensate on a line that runs unattended through shifts.
A single filter-regulator drop feeding solenoid valves and pilot devices on an OEM panel, combining water and particulate removal with pressure setting in one body to save manifold space.
Start with the size and port: 300 sits mid-range in the GFR line (200/300/400/600), and the 1/2 in PT port suits mains-fed drops and larger actuator circuits; step up or down a size if your flow demand differs. Choose the drain to match attendance: automatic (as here) suits unattended duty, manual suits periodic checks, differential-pressure is the default. Pick 5 um (this unit) where downstream valves and instruments need finer air than the 40 um standard. Gauges are square (embedded) or optional round, scaled in MPa, psi or bar; thread is PT standard with G and NPT orderable; a mounting bracket is included.
Because flow is published only as curves and not as a single rated figure, ask us to confirm sizing from the datasheet against your application before ordering - and confirm the low-pressure adjustment range if your setpoint is critical.
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 G-series flow as curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM for this unit. Ask us and we will confirm the datasheet flow curve for the GFR300 at your conditions so you can size it against your application before ordering.
The A in the code sets the automatic drain, which ejects collected condensate without anyone opening the bowl - useful on unattended lines. The W sets the 5 um element, one grade finer than the 40 um standard, for downstream valves and instruments that need cleaner air. Both are order choices across the GFR range.
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.