The AirTAC GFR40015ALJC2 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 GFR40015ALJC2 is an AirTAC GFR400 filter regulator: filtration and pressure regulation combined in a single body. It removes water and particulate from compressed air with a 40 um element, then regulates downstream pressure, and it is the low-pressure type for circuits that run below standard regulator settings. This configuration is 1/2 in PT thread, has an automatic drain that ejects collected condensate without manual attention, and is fitted with an external round gauge scaled in psi. The polycarbonate bowl suits the 400 size, and maximum inlet pressure is 1.0 MPa (145 psi) with an operating temperature of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, drain choices (differential-pressure, automatic or manual), an optional 5 um element (code W), gauge styles and MPa/psi/bar scales, and G or NPT thread options to order. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR40015ALJC2 AirTAC Filter Regulator PT1/2 Auto Drain |
|---|---|
| Series | GFR400 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.
| 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. |
| (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 | GFR400 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeding clean, regulated air at reduced pressure to the sealing, forming and actuation circuits of a packaging line, with the automatic drain keeping condensate out of the valves between shifts.
Supplying a fixture or clamping station that holds workpieces at a deliberately low pressure, where the low-pressure type regulator gives finer control in the lower part of the band.
Conditioning shop air for a test bench or laboratory apparatus that needs particulate- and water-free air regulated to a set point, read directly off the fitted psi gauge.
Step up or down through the GFR sizes (200/300/400/600) so the port and body match the flow your line needs, then choose the thread: PT is the standard on this code, with G (BSPP) and NPT available as order options. The 40 um element is the standard grade; specify the W code if the application needs 5 um filtration. The automatic drain on this unit suits unattended or hard-to-reach installations; manual and differential-pressure drains are the alternatives in the family. The round psi gauge is fitted here, and square embedded gauges with MPa/psi/bar scales are the other choice; brackets are optional on GFR. The low-pressure type is the right pick when the working band sits below a standard regulator's range - its exact adjustment range is not published, so confirm it with us. Because flow is published as curves rather than a single rated figure, 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 GFR performance as flow curves, not as a single rated number, so we do not quote a l/min or SCFM figure. Tell us your application and we will confirm the flow and sizing from the datasheet on request before you order.
The automatic drain ejects collected condensate by itself, which suits units mounted in awkward or unattended spots; manual and differential-pressure drains are the alternatives in the family. The L in the code marks the low-pressure regulator type, intended for circuits running below standard settings - its exact adjustment range is not published, so confirm it with us on request.
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.