The AirTAC GFR30010LJC2WG AirTAC Filter Regulator G3/8 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 differential-pressure 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 GFR30010LJC2WG is a GFR-series filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This G3/8 (3/8 in) configuration is built on the 300 size, carries the 5 um filter element (code W) instead of the standard 40 um grade, drains condensate by differential pressure, and is the low-pressure type for circuits running below standard regulating pressures. It is supplied with an external round gauge scaled in psi, without a mounting bracket and without a reverse (check) valve. Maximum inlet pressure is 1.0 MPa (145 psi), the temperature range is -5 to 70 C (non-freezing), and the 300-size bowl is polycarbonate (PC).
This is a genuine AirTAC part. The GFR family spans 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, standard or low-pressure regulation, embedded square or external round gauges scaled in MPa, psi or bar, and PT, G (BSPP) or NPT threads. Rated flow for this model is published as a curve rather than a single figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR30010LJC2WG AirTAC Filter Regulator G3/8 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (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 | Differential-pressure 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.
| 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". |
| (blank) | Drain: Differential-pressure 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 | GFR300 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Filtered, regulated supply for tool changers, clamps and pilot circuits on a machining centre, where the 5 um element helps keep fine particulate out of sensitive pilot valves.
Feeding cylinders and diverters on a carton packaging line, with the low-pressure type regulator holding a stable reduced pressure for gentle, repeatable actuation and the differential-pressure drain clearing condensate automatically.
Regulating clean reduced-pressure air on a test rig, where the round psi gauge gives direct readout at the bench and the 5 um grade protects instruments and reference devices on the panel.
Choose the size by port and flow: 300 sits mid-range, with 200 for smaller lines and 400/600 for higher flows - match the port (here G3/8) to your piping and let us check the flow curve against your demand. Drain options are differential-pressure (standard, and the type fitted here), automatic or manual. The 5 um element (code W) suits finer duties such as pilot valves and instruments, while 40 um is the standard general-purpose grade. Gauges are the embedded square type or an external round gauge in MPa, psi or bar scales - this model carries a round gauge scaled in psi. Threads come as PT (standard), G (BSPP) or NPT to order; brackets are optional and this configuration omits the bracket. Because rated flow is published only as curves, 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 GFR flow as performance curves, not a single rated figure, so we do not quote a number here. Tell us your line pressure and air demand and we will confirm the flow curve and datasheet for this exact model on request.
The W in the model code specifies the 5 um element, which suits finer duties such as pilot valves and instruments; the 40 um element is the standard general-purpose grade and is available across the same GFR family. Both grades work with the differential-pressure drain bowl fitted on this unit.
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.