The AirTAC GFR30015ALC2K AirTAC Filter Regulator PT1/2 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 GFR30015ALC2K is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This unit is built for a 1/2 in PT port and is the low-pressure (L) type of the GFR300 series. It carries an automatic drain that discharges collected condensate from the PC (polycarbonate) bowl without operator attention, a 40 um filter element (5 um is available as code W), a round pressure gauge reading in psi, and a fitted reverse/check valve (code K). A mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and catalogue options for thread (PT standard; G and NPT to order), drain type, filter grade, gauge style and scale. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR30015ALC2K AirTAC Filter Regulator PT1/2 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (PT 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 — round, 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. 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. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding filtered, regulated air to the clamp and gripper cylinders on a bottling line's 1/2 in ring main, with the automatic drain clearing condensate from humid compressor air without a technician visiting the station.
Supplying the pallet-clamp and tool-change actuators on a CNC machining centre, where the 40 um element protects directional valve spools and the fitted check valve suits circuits that must stay charged when upstream supply is isolated.
Regulating air to the diverter, stopper and pusher cylinders along a distribution conveyor, with the 1/2 in PT connection matching the header drop and the round psi gauge giving operators a local setpoint reading.
Size and port: GFR300 is the 300 frame with a 1/2 in PT port; step up to GFR400 or down to GFR200 if your line calls for a different port and flow band. Drain: this unit has an automatic drain, so condensate leaves the PC bowl on its own; manual and differential-pressure drains are the other catalogue choices. The filter grade is the standard 40 um element; specify code W for 5 um where finer filtration is needed. The round gauge reads psi (MPa and bar scales are the alternatives), and the reverse/check valve (code K) fitted here can be omitted on other codes. Thread is PT as standard, with G (BSPP) and NPT as order options, and the mounting bracket is included.
Regulation: this is the low-pressure (L) type of the GFR300, and its exact adjustment range is not published in the material we hold, so ask us to confirm it against your set pressure before ordering. Flow is published as curves rather than a single rated figure, so send us your application details and we will confirm sizing from the datasheet.
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 here. Send us your required flow and working pressure and we will confirm from the datasheet whether this 1/2 in low-pressure filter regulator suits your application.
The A in the code GFR30015ALC2K specifies an automatic drain, which discharges collected condensate from the PC bowl without operator attention - useful for unattended or hard-to-reach installations. Manual-drain and differential-pressure versions are available under other GFR300 codes, along with the 5 um (W) filter grade, alternative gauge scales, and G or NPT threads as order options.
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.