The AirTAC GFR30015ALF2G AirTAC Filter Regulator G1/2 Low-Pressure is a genuine G-series filter regulator: water separation, 40 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 GFR30015ALF2G is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and then regulates the downstream pressure. This configuration has a G1/2 port, an automatic drain that expels collected condensate without operator attention, a 40 um standard filter element, the low-pressure regulator type for reduced set-pressure duties, an embedded square gauge scaled in psi, and a mounting bracket included. The polycarbonate bowl suits non-freezing compressed air from -5 to 70 C, with a maximum inlet pressure of 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR300 series is one of four sizes (200/300/400/600) with port options from 1/8 to 1 inch, and choices of drain type, 40 um or 5 um (code W) filtration, gauge and scale, thread (PT is the standard offering; G and NPT are catalogue options) and bracket. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR30015ALF2G AirTAC Filter Regulator G1/2 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (G (BSPP) thread) |
| Filtering grade | 40 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. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Supplying filtered, regulated air to low-pressure clamping cylinders on CNC machining fixtures, where a reduced set pressure holds parts securely without over-clamping.
Feeding clean, regulated air to carton-sealing and case-erector cylinders along a packaging conveyor, with the automatic drain handling condensate through multi-shift running.
Conditioning the air supply to looms and winding heads on a textile line, where machines run at reduced pressures and need water and particulate stripped out first.
Size and port set the capacity: the GFR300 carries a 1/2 inch port, and stepping up to GFR400 or GFR600 gives larger ports and more flow - we can check the published curves against your demand. Drain choice matters: automatic (this model) clears condensate by itself, manual needs an operator, and differential-pressure drains on a pressure drop. Filtration here is the 40 um standard element; specify W for 5 um where finer particulate matters. The embedded square gauge is scaled in psi; MPa or bar scales and an external round gauge are options. Thread is G (BSPP) on this model; PT is the standard offering and NPT is an order option. Bracket included. Because flow is published as curves, not a single rating, 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 GFR300 as curves rather than a single rated figure, so we do not quote a number here. Send us your required flow and working pressure and we will confirm the datasheet figures for this exact model before you order.
The A in GFR30015ALF2G specifies an automatic drain, which expels collected condensate without an operator, ideal for unattended lines. Manual and differential-pressure drains are available in the same GFR300 series if your maintenance routine prefers them.
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.