The AirTAC GFR30010LJC2 AirTAC Filter Regulator PT3/8 Low-Pressure is a genuine G-series filter regulator: water separation, 40 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 GFR30010LJC2 is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is the 300 size with a PT3/8 (3/8 in) port, the low-pressure regulator type, the standard 40 um filter element, and a differential-pressure drain that bleeds collected condensate automatically as flow passes through. The polycarbonate bowl lets you see the liquid level, and the fitted round gauge reads in psi so operators can set and monitor the working pressure at a glance. No mounting bracket is included in this variant.
This is a genuine AirTAC part. The GFR300 series is one of four sizes (200, 300, 400, 600) with port options from 1/8 in to 1 in, and the family can be ordered with manual or automatic drains, a 5 um element (code W), square embedded or round external gauges in MPa, psi or bar scales, and G or NPT threads instead of PT. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet numbers for your application before ordering.
| Model | GFR30010LJC2 AirTAC Filter Regulator PT3/8 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (PT thread) |
| Filtering grade | 40 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. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
On a CNC fixture line, the GFR30010LJC2 filters mill moisture and chips-laden plant air to 40 um and holds a low, stable clamping pressure so workpieces are gripped consistently without over-pressuring the cylinders.
On a cartoning or wrapping machine with many small air cylinders, this unit conditions the 3/8 in branch supply and lets the operator dial in the low working pressure the actuators were designed for, reading the setting on the psi gauge.
In a finishing booth where atomising and conveying air must run well below main header pressure, the low-pressure regulator type trims the supply down while the 40 um element and differential drain keep water out of the coating air.
Start with the port: this unit is the 300 size at PT3/8, so check that your line size and expected air demand sit within the 300-size flow band - we can confirm the curve against your consumption before you order. Choose the drain next: differential-pressure (this unit) suits lines with steady flow, while an automatic drain suits intermittent duty and a manual drain suits low-moisture or periodically attended points. The 40 um element is the standard grade for general plant air; specify the 5 um W-code element only where finer particulate removal is needed. Gauge scale is psi on this unit (MPa and bar scales are order options), and the low-pressure regulator type is the right pick where the working pressure sits in the lower part of the band - the exact adjustment range for the low-pressure type is not published, so confirm it with us. Threads are PT as standard with G and NPT orderable, and a mounting bracket can be added if this no-bracket variant does not suit your panel.
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 one number. Send us your operating pressure and air consumption and we will confirm the flow from the datasheet curve for this exact model before you order.
The C2 code in GFR30010LJC2 specifies the optional external round gauge with a psi scale, instead of the embedded square gauge that is standard on the series. The blank drain position means the differential-pressure drain: condensate is expelled automatically as air flows through, with no manual draining needed on lines with continuous flow.
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.