The AirTAC GFR40015ALJF2WG 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 AirTAC GFR40015ALJF2WG is a filter regulator: water and particulate removal plus pressure regulation combined in a single GFR400 body. This configuration is built around a G1/2 (BSPP) port with G thread, a 5 um filtration element for finer air than the 40 um standard, and an automatic drain that expels collected condensate from the polycarbonate bowl without manual attention. The low-pressure regulator suits circuits set below standard regulator ranges, and the fitted embedded square gauge reads in psi so the downstream setting is visible at the unit. No mounting bracket is included with this code.
This is a genuine AirTAC part in the GFR400 size family, which covers larger ports and higher flow duties than the 200 and 300 series, with automatic, manual or differential-pressure drain, 40 um or 5 um filtration, and MPa, psi or bar gauge scales available across the range. 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 | GFR40015ALJF2WG 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 — square, 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). |
| F | Gauge shape: Square. 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) |
A low-pressure regulated supply to clamping cylinders on a CNC fixture line: the 5 um element protects the clamp valves from fine particulate and condensate, the automatic drain keeps the bowl clear through long production runs, and the psi gauge lets the setter read the clamp setting directly at the unit.
Regulated, filtered air to the pick-and-place and sealing cylinders on a carton packaging conveyor. The G1/2 port serves the larger header line feeding the station, the automatic drain handles condensate from a humid compressor room, and the low-pressure regulator suits gentle product-handling actuation.
A filtered, regulated drop feeding lab analysers or sample-handling actuators that require low supply pressure. The 5 um element gives finer air than the standard grade, the square psi gauge provides a clear local reading for calibration checks, and the PC bowl allows visual inspection of collected moisture.
Start with the port step: the GFR400 size serves G1/2 lines, one step up from GFR300 (3/8 in) and one below GFR600, so match the size to the pipe and the flow your circuit needs rather than to the port alone. This code already fixes the finer 5 um element (choose 40 um where only coarse protection is needed) and the automatic drain (choose manual where you prefer operator-controlled draining, or differential-pressure as the catalogue default). The square gauge here reads in psi; MPa and bar scales are alternatives. Thread is G (BSPP) on this unit; PT is the standard catalogue thread, with G and NPT as order options, and the J code means no mounting bracket is supplied. Note this is the low-pressure type: its exact regulation range is not published in the material we hold, so confirm it with us. Because flow is published as curves and not as a single rating, 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 flow for this series as curves, not as a single rated figure, so we do not quote one. Tell us your line pressure and the flow your application needs and we will confirm the sizing against the datasheet on request before you order.
The W in the code specifies the optional 5 um filtration element rather than the 40 um standard, giving finer protection downstream, and the A specifies an automatic drain that ejects condensate from the PC bowl on its own. Both are catalogue choices: 40 um with manual or differential-pressure drain is available if you prefer, and we can confirm the right combination for your circuit.
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.