The AirTAC GFR40015ALJC2WG AirTAC Filter Regulator G1/2, 5 um 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 GFR40015ALJC2WG is an AirTAC GFR filter regulator: a 5 um filter element and a pressure regulator combined in one body, so a single G1/2 (1/2 in) connection both removes water and particulate from the compressed air and holds a set downstream pressure. This configuration is the low-pressure type, fitted with an automatic drain that ejects condensate from the PC (polycarbonate) bowl without manual attention, and it comes with a round pressure gauge scaled in psi. No mounting bracket is included and no reverse (check) valve is fitted.
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, a choice of differential-pressure, automatic or manual drain, 40 um standard or 5 um (W) filtration, and embedded square or external round gauges in MPa, psi or bar scales. 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 the datasheet figures for your application.
| Model | GFR40015ALJC2WG AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (G (BSPP) 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 | 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. |
| W | Filtering grade 5 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. |
| (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" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeds spray guns on a finishing line with air that has water and particulate stripped out at 5 um while the regulator holds the gun supply at the set pressure the finish calls for.
Conditions the air feeding carton-sealing and case-taping cylinders on a packaging conveyor, keeping the supply clean and the downstream pressure steady as the line cycles.
Prepares the air for clamp and hold-down cylinders on a machining or assembly fixture, filtering condensate and particulate and regulating the clamp pressure from one G1/2 connection.
Size and port step up with air demand: this unit is size 400 with a G1/2 port; the smaller 200 and 300 sizes suit lighter duties and size 600 covers larger ones. Drain choice matters: automatic (this unit) discharges condensate by itself, manual needs periodic bleeding, and the differential-pressure default drains only when the pressure drop across the element is high enough. Filtration here is the finer 5 um grade (code W); 40 um is the standard grade where finer filtration is not required. The round gauge is scaled in psi; an embedded square gauge and MPa or bar scales are alternatives, and PT is the standard thread with G and NPT as order options. Brackets are optional and not fitted on this model. Because flow is published as curves rather than a single rated figure, send us your application details and we will confirm sizing against the datasheet before you order.
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 G-series flow as curves, not as a single rated figure, so we do not quote one number for this unit. Send us your application details - port size, downstream demand and working pressure - and we will confirm the datasheet flow curve for this exact model before you order.
This model carries drain code A: condensate collecting in the PC bowl is discharged automatically, which suits unmanned or hard-to-reach installations. Manual-drain versions (code M) need periodic bleeding, and the differential-pressure default drains only once the pressure drop across the element is high enough. Pick the drain to match how often the unit can be attended; ask us if you are unsure which suits your line.
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.