The AirTAC GFR30010LJF2WGK AirTAC Filter Regulator G3/8 Low-Pressure 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 GFR30010LJF2WGK is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the low-pressure type with a G3/8 (3/8 inch) G-thread port, a 5 um filter element (code W), a differential-pressure drain, an embedded square gauge scaled in psi, and a reverse/check valve fitted. No mounting bracket is included, and the polycarbonate bowl suits this 300 size.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, PT as the standard thread and G or NPT as order options, with manual, automatic or differential-pressure drains, 40 um standard or 5 um elements, and a choice of gauge scales. Flow is published as curves rather than a single rating, so ask us to confirm sizing and the low-pressure adjustment range against your application.
| Model | GFR30010LJF2WGK AirTAC Filter Regulator G3/8 Low-Pressure |
|---|---|
| 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 — square, 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". |
| (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). |
| 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. |
| 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) |
On a bottling line, grippers and pusher cylinders run at modest set pressures. This low-pressure filter regulator cleans the shop air, holds the supply steady for those actuators, and the check valve holds the downstream circuit if upstream pressure dips.
Pneumatic clamp cylinders on an assembly fixture need clean, stable air at a low set pressure so parts are held without over-clamping. The 5 um element protects the clamp valves from particulate, and the psi-scaled gauge lets the setter read the clamping pressure directly.
Bench-top pneumatic instruments in a lab or QC station want air free of water and fine particles. The 5 um element and condensate removal via the differential-pressure drain condition the supply, while the low-pressure regulator suits instruments that operate well below full line pressure.
Size 300 with a G3/8 port sits mid-range in the GFR line; step up or down (200/400/600) as your flow and piping require. Choose the 5 um element (this model, code W) when downstream equipment needs finer filtration than the 40 um standard, and the differential-pressure drain (as here) where an automatic or manual drain is not required. The embedded square gauge is scaled in psi; MPa and bar scales and an external round gauge are alternatives. The thread here is G; PT is the standard and NPT is an order option. Because flow is published as curves, not a single rating, ask us to confirm sizing against the 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.
Flow for the GFR300 series is published as curves, not as a single rated figure, so we do not quote a number here. Send us your application details - port size, line pressure and required downstream flow - and we will confirm the flow curve and correct sizing against your requirement before you order.
The L in GFR30010LJF2WGK marks the low-pressure regulator variant. Its exact adjustment range is not published in the catalogue data we hold, so we will not quote a figure. Tell us the set pressure your application needs and we will confirm suitability on request. The unit's maximum inlet pressure is 1.0 MPa (145 psi) and its working temperature range is -5 to 70 C (non-freezing).
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.