The AirTAC GFR30015ALJC2GK 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 AirTAC GFR30015ALJC2GK is a GFR300-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built around a G1/2 (BSPP) port in the 300 size, with an automatic drain that expels collected condensate without manual attention, a 40 um standard filter element, and the low-pressure regulator type for circuits set below the standard range. A round external gauge scaled in psi is fitted, and the built-in reverse (check) valve holds downstream settings when upstream supply is lost. The polycarbonate bowl suits the 300 frame, and this unit is ordered without a mounting bracket.
This is a genuine AirTAC part in the GFR family, which spans the 200, 300, 400 and 600 sizes with port options from 1/8 to 1 inch, a choice of automatic, manual or differential-pressure drains, 40 um or 5 um (W) filtration, gauge styles and scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so we confirm the datasheet and sizing figures for your application on request.
| Model | GFR30015ALJC2GK 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 — 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. |
| J | Supplied without bracket. |
| (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. |
| 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Clean, regulated air for the cylinder banks that drive carton forming, sealing and case-packing stations, with the automatic drain handling condensate on a line that runs unattended across shifts.
Filtered and regulated supply for workholding clamps and fixture actuators on CNC cells, where the check valve holds clamp pressure if the main supply dips mid-cycle.
Point-of-use preparation for loom and spinning-frame actuation circuits, with the low-pressure regulator type matching processes that run at settings below the standard range and the psi gauge giving operators a familiar readout.
Start with the port step: the 300 size carries 1/2 inch ports here, and the right size is the one whose flow curve covers your demand with margin - ask us to check it before ordering. Drain choice matters in duty terms: automatic drain (this unit) suits unattended lines, manual drain suits supervised points, and the differential-pressure default drains on a pressure drop. The 40 um element is the standard grade; specify W for 5 um where finer particulate capture is needed. Gauge options are the embedded square gauge or an external round gauge (fitted here) with MPa, psi or bar scales - this one reads psi. Thread is G (BSPP) on this code; PT is the standard and G/NPT are order options. Brackets are optional - this unit omits one. Flow is published as curves, not a single rating, so confirm sizing against your application with us before ordering.
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 G-series flow as curves rather than a single rated figure, so we do not quote a number that is not in our validated data. Send us your operating pressure and air demand and we will confirm the flow from the datasheet and check the 300 size against your application before you order.
The A in the code sets the automatic drain, which ejects collected condensate on its own instead of waiting for a manual or differential-pressure cycle - useful on lines that run without an operator at the bowl. C2 sets the external round gauge scaled in psi; the embedded square gauge is the standard fitting and MPa or bar scales are alternative 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.