The AirTAC GFR40015ALJC2WGK AirTAC Filter Regulator G1/2 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 GFR40015ALJC2WGK is an AirTAC GFR400 filter regulator: filtration and pressure regulation combined in a single body. It removes water and particulate from compressed air through a 5 um element (the fine grade, code W, versus the 40 um standard) and regulates downstream pressure in a low-pressure configuration. This unit is built with a G1/2 port, an automatic drain that expels collected condensate without manual attention, a reverse/check valve fitted, and an external round gauge reading in psi. The polycarbonate bowl suits this 400 size, and the unit is supplied without a mounting bracket.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600, with port options from 1/8 to 1 inch, G (BSPP), NPT or PT threads, differential-pressure, automatic or manual drains, 40 um or 5 um filter grades, standard or low-pressure regulator types, gauge and bracket options, and an optional reverse/check valve. Flow is published as curves rather than a single rating, so we confirm the datasheet and sizing figures on request.
| Model | GFR40015ALJC2WGK AirTAC Filter Regulator G1/2 |
|---|---|
| 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 | 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. |
| 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 | GFR400 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
On an assembly fixture where workpieces must be held at a gentle, steady pressure, this filter regulator cleans the supply with its 5 um element and holds the low regulated setting the clamping cylinders need, with the psi gauge giving the operator a direct reading.
A carton-forming or wrapping machine running long shifts benefits from the automatic drain, which removes condensate from the filter bowl without an operator stopping by, protecting downstream valves and actuators from water carryover.
Looms and spinning frames use low-pressure air jets and pneumatic guides; this unit filters fine particulate from the mill air line and regulates the supply at the low pressures these machines are set up around.
Choose the size and port step against the air demand of the circuit: this unit is size 400 with a 1/2 inch G-thread port, one step up from the 300 series. The 5 um element (code W) suits applications needing finer particulate removal than the 40 um standard; the automatic drain suits unattended installations where regular manual draining is impractical. The low-pressure regulator type is the right choice where the working pressure sits below the range a standard regulator handles comfortably; the exact regulation range for the low-pressure type is not published, so confirm it with us. The round psi gauge is fitted as specified; embedded square gauges with MPa, psi or bar scales are the alternatives. G (BSPP) is the thread on this code, with PT standard and NPT available as order options, and the J code means no bracket is included where one would otherwise be optional.
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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR family as curves rather than a single rated figure, so no single flow number can be quoted here. Tell us your application and air demand and we will confirm the sizing against the datasheet curves on request before you order.
Both are decoded from the model code. The A position selects the automatic drain, which expels collected condensate on its own instead of relying on manual draining or a differential-pressure mechanism - useful where the unit is not checked daily. The W position selects the 5 um filter grade, the finer option versus the 40 um standard element.
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.