The AirTAC GFR40015ALJC2WK AirTAC Filter Regulator PT1/2 Low-Pressure 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 GFR40015ALJC2WK is an AirTAC GFR400 series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is sized for PT1/2 ports, carries the 5 um filter element (code W) for finer filtration than the 40 um standard, and drains condensate automatically, so the bowl does not depend on a manual or differential-pressure drain cycle. It is the low-pressure regulator type, fitted with an external round gauge scaled in psi, and includes a reverse (check) valve. The polycarbonate bowl suits non-freezing service from -5 to 70 C, and maximum inlet pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR filter-regulator family is available in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, with a choice of drain type, 40 um or 5 um filtration, gauge style and scale, thread (PT standard, G or NPT as order options), bracket and reverse valve. Flow is published in the catalogue as curves rather than a single rated figure, so we confirm the datasheet and sizing figures for your application on request.
| Model | GFR40015ALJC2WK AirTAC Filter Regulator PT1/2 Low-Pressure |
|---|---|
| Series | GFR400 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 — 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.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 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. |
| 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. |
| 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 | GFR400 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeding tool-clamp and pallet-change circuits on a machining center, where the 5 um element protects precision valves and the low-pressure regulator holds a gentle setting for sensitive actuation.
Regulating and conditioning air to conveyor stopper and pusher cylinders on a packaging line, with the automatic drain keeping condensate off the cylinders during continuous shifts.
Supplying clean, low-pressure regulated air to lab process equipment and test rigs, where the 5 um grade and psi-scaled round gauge support careful, repeatable settings at the bench.
Choose the GFR400 size step when your line runs at 1/2 inch porting and the flow demand sits above what a GFR300 can pass; flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering. This unit already fixes several choices: the 5 um element (finer than the 40 um standard) for cleaner air at sensitive components, the automatic drain for unattended condensate removal, the low-pressure regulator type, and a round psi gauge. If you need MPa or bar scale, a square embedded gauge, G or NPT thread instead of PT, or a mounting bracket, those are available as alternative order codes in the same series.
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 GFR series as curves rather than a single rated figure, so we do not quote one number. Send us your inlet pressure, downstream setting and demand, and we will confirm the flow and sizing figures from the datasheet on request.
The A in the code selects the automatic drain, which expels collected condensate without manual attention or reliance on a differential-pressure cycle - useful on lines that run unattended. The W selects the 5 um element, one grade finer than the 40 um standard, for applications where cleaner air protects downstream components.
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.