The AirTAC GFR30010ALJC2WTK AirTAC Filter Regulator NPT3/8 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 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 GFR30010ALJC2WTK is an AirTAC GFR300 filter regulator: a single body that removes water and particulate from compressed air and regulates downstream pressure. This configuration carries a 5 um filter element (code W), an automatic drain on the polycarbonate bowl, a low-pressure regulator type, and a round pressure gauge reading in psi. Ports are 3/8 in NPT thread, the K-coded reverse/check valve is fitted, and the unit is supplied without a mounting bracket.
This is a genuine AirTAC part. The GFR300 size takes a maximum inlet pressure of 1.0 MPa (145 psi) and operates from -5 to 70 C (non-freezing); the polycarbonate bowl suits sizes 200-400, with aluminium alloy reserved for size 600. AirTAC publishes flow for this series as curves rather than a single rated figure, so ask us to confirm flow and datasheet figures for your application before ordering.
| Model | GFR30010ALJC2WTK AirTAC Filter Regulator NPT3/8 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT 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.
| 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). |
| 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. |
| T | NPT 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 | GFR300 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Filtered, regulated air for the clamp and gripper cylinders on a carton-forming machine; the 5 um element protects the directional valves and the automatic drain clears bowl condensate between shifts.
A low-pressure regulator feeding pneumatic control valves on a laboratory or pilot-plant skid, where modest supply pressures and a psi-reading gauge keep settings easy to manage day to day.
Regulated air to the stopper and gate cylinders along a bottling conveyor; the unit carries the K-coded reverse/check valve, and the polycarbonate bowl with automatic drain keeps water out of the gate circuit.
Within the GFR series the real choices are the size/port step, the drain type, the filter grade, the gauge, the thread and the bracket. This model is the size-300 unit with 3/8 in NPT ports; if your line needs a different capacity, step up to GFR400 or down to GFR200 and match the port code (06 through 25). The automatic drain here clears condensate without daily manual bleeding; manual and differential-pressure drains are the other catalogue options. The 5 um element (W) is the finer of the two grades - 40 um is standard - so choose W where downstream components are sensitive. The round gauge reads psi; MPa and bar scales are alternatives. G and NPT threads are order options alongside the PT standard, and the bracket can be included or omitted (this code omits it). Flow for the series is published as curves, not a single rating, so 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 series as curves rather than a single rated figure, so we do not quote one number. Tell us your line pressure and expected air demand and we will confirm the sizing from the datasheet on request.
The L code makes this a low-pressure regulator variant of the GFR300. The exact setting range for the low-pressure type is not published in our data, so confirm the range with us on request. The unit otherwise carries the standard 1.0 MPa (145 psi) maximum inlet pressure and -5 to 70 C operating range.
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.