The AirTAC GFR30015ALJC2 AirTAC Filter Regulator PT1/2 Auto Drain 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 GFR30015ALJC2 is an AirTAC GFR300-series filter regulator: water and particulate removal plus pressure regulation combined in a single 300-size body with 1/2 inch PT ports. This configuration carries the standard 40 um filter element and an automatic drain, so collected condensate is expelled from the PC bowl without anyone having to open the drain by hand - useful on lines that run unattended. The regulator is the low-pressure type, and the unit is fitted with an external round gauge reading in psi so the downstream setting can be watched directly at the machine.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of automatic, manual or differential-pressure drains, a 5 um element option (code W), square or round gauges with MPa, psi or bar scales, and G or NPT thread variants. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR30015ALJC2 AirTAC Filter Regulator PT1/2 Auto Drain |
|---|---|
| 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 | 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. |
| 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. |
| (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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeds filtered, regulated air to the sealing-jaw cylinders on a carton or blister line, where the low-pressure regulator type holds a gentle, repeatable clamp pressure and the automatic drain keeps condensate out of the valves between shifts.
Serves as the conditioning point ahead of pneumatically actuated process valves on a plant floor, delivering clean 1/2 inch line air at a controlled low setting with the psi gauge visible for routine checks.
Conditions the air feeding clamp and hold-down cylinders on a CNC fixture circuit, removing water and swarf-laden particulate before the cylinders while the regulator keeps holding force consistent part after part.
Size 300 with PT1/2 ports is the right step when your line runs 1/2 inch air piping and the flow demand sits in the middle of the GFR range - step up to size 400 or 600 for larger volumes, or down to size 200 for compact circuits. Because flow is published as curves and not a single rating, send us your consumption figures and we will confirm the correct size against the datasheet before you order. The automatic drain on this unit suits installations that are not visited daily; choose manual drain where you want positive control over bowl emptying, or the differential-pressure default where draining should follow the pressure drop. The 40 um element is the standard grade for general machine air; specify the W code for the 5 um element where downstream equipment needs finer filtration. This unit is the low-pressure regulator type, so confirm its regulation span against your set point with us first. The fitted round gauge reads in psi; square embedded gauges and MPa or bar scales are alternatives in the family. PT thread is standard on this code, with G (BSPP) and NPT available as order options, and brackets can be added if the code you choose does not include one.
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 series as curves, not as a single rated number, so we do not quote a l/min, m3/h or SCFM figure. Send us your application's consumption and line pressure and we will confirm the sizing against the datasheet on request before you order.
The A in the code GFR30015ALJC2 selects the automatic drain: condensate collected in the PC bowl is expelled on its own as it accumulates, so the unit suits lines that run unattended. Manual drain (code M) and the differential-pressure default are the alternatives if you prefer hands-on or drop-triggered draining.
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.