The AirTAC GFR30010ALJF2W AirTAC Filter Regulator PT3/8 5um 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 PT3/8" 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 GFR30010ALJF2W is an AirTAC GFR300 filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate from compressed air at the 5 um grade (code W) and regulates downstream pressure with the low-pressure regulator type. This configuration is PT3/8 ported, has an automatic drain that expels collected condensate without manual attention, a fitted embedded square gauge reading in psi, and no mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). The bowl on this 300 size is polycarbonate (PC).
This is a genuine AirTAC part. The GFR range is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, drain choices (differential-pressure, automatic or manual), 40 um standard or 5 um fine filtration, gauge and scale options, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR30010ALJF2W AirTAC Filter Regulator PT3/8 5um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (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 — 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.
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 08 = PT1/4", 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. |
| (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 | GFR300 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeding film-seal cylinders and grippers on a packaging line, where filtered, dry air at a reduced set pressure protects seals and gives repeatable cylinder cycling.
Conditioning shop air for benches, test rigs and pilot panels where fine 5 um filtration and a low set pressure are needed for sensitive instruments and pilot valves.
Supplying tableted or bottled-line actuators and air jets, with automatic drain keeping condensate off the product zone and the psi gauge giving operators a visible setpoint.
Size and port step up together: 200 through 600 covers 1/8 to 1 inch, so pick the size whose flow curve meets your demand at the working pressure - we will check the curve against your application on request. This unit is already fixed at 300 / PT3/8 with 5 um filtration, automatic drain, low-pressure regulator type, square psi gauge and no bracket. If you need a coarser 40 um element, a manual or differential-pressure drain, a different gauge scale (MPa, psi or bar), a mounting bracket, or a G (BSPP) or NPT thread instead of PT, those are catalogue options on adjacent codes. The low-pressure regulator type is intended for circuits set below standard ranges; the exact adjustment range for this variant is not published, so confirm it with us 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 the GFR300 series as curves rather than a single rated figure, so we do not quote a l/min or SCFM number. Send us your working pressure and air demand and we will confirm the sizing from the datasheet curve before you order.
The W code in GFR30010ALJF2W selects the 5 um filter grade instead of the 40 um standard element, for finer particulate removal ahead of sensitive valves and cylinders. The A code selects the automatic drain, which discharges collected condensate by itself - useful where bowls are mounted in awkward spots or the unit runs unattended. A 40 um grade or manual / differential-pressure drain are available on other codes in the family.
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.