The AirTAC GFR30010LJC1T AirTAC Filter Regulator NPT3/8 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 AirTAC GFR30010LJC1T is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 300-size configuration is ordered with a 3/8 in NPT port, the low-pressure regulator type, a polycarbonate bowl with differential-pressure drain, 40 um standard filtration, an external round pressure gauge scaled in MPa, and no mounting bracket.
It is a genuine AirTAC part from the GFR range, which spans 200, 300, 400 and 600 sizes with port options from 1/8 in to 1 in, PT as the standard thread and G or NPT to order, manual and automatic drain alternatives, and a 5 um (code W) filter grade. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application.
| Model | GFR30010LJC1T AirTAC Filter Regulator NPT3/8 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT 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, MPa 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. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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) |
Filtered, low-pressure regulated air to swing clamps and power vises on a CNC fixture line, with the 40 um element keeping clamp cylinders and control valves free of grit and condensed water.
Conditioning the air feed to a paint kitchen or spray booth, where the low-pressure regulator type holds a gentle setpoint for atomizing and conveying air without over-pressurising the line.
Point-of-use filter regulation ahead of carton-forming and sealing cylinders on a packaging line, with the differential-pressure drain venting collected condensate automatically as the element loads.
Size and port step up together: 200, 300, 400 and 600 cover 1/8 in to 1 in ports, so choose the size whose flow curve covers your air consumption - we will check the curve against your application on request. This unit is the low-pressure regulator type (code L); AirTAC does not publish an exact adjustment range for this variant, so confirm your setpoint with us before ordering if it sits near a limit. Drain options are differential-pressure (fitted here), automatic (A) or manual (M); filtration is 40 um standard or 5 um with code W. Gauges come as an embedded square type or an external round type, scaled in MPa, psi or bar - this unit carries a round MPa gauge. Threads are PT as standard with G and NPT as order options; this unit is NPT. Brackets are optional and this unit is ordered without one.
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 GFR range as curves, not as a single rated figure, so we do not quote a number here. Tell us your working pressure and air consumption and we will confirm the sizing from the datasheet before you order.
The L in the code selects the low-pressure regulator variant, intended for setpoints below the standard range. AirTAC does not publish an exact adjustment range for this variant, so confirm your setpoint with us before ordering. Everything else is unchanged: 40 um filtration, differential-pressure drain, round MPa gauge, NPT 3/8 in port, 1.0 MPa (145 psi) maximum inlet and -5 to 70 C operation.
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.