The AirTAC GFR300C15LJF2T AirTAC Filter Regulator NPT1/2 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 See datasheet 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 GFR series combines filtration and pressure regulation in a single body: air passes a 40 um filter element that removes water and particulate, then flows through the regulator that sets downstream pressure. This unit is the GFR300 size with a 1/2 in NPT port, built as the low-pressure type; its exact adjustment range is not published, so confirm it with us against your set pressure. It carries a differential-pressure drain, an embedded square gauge reading in psi, and no mounting bracket, and the polycarbonate bowl suits this size class. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in up to 1 in, and options that include automatic, manual or differential-pressure drains, a 5 um filter element (code W), gauge scales in MPa, psi or bar, an external round gauge, G or NPT threads in place of the PT standard, and a mounting bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR300C15LJF2T AirTAC Filter Regulator NPT1/2 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard 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 — factory standard, Factory standard 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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. |
|---|---|
| C1 | Port size See datasheet. 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Filtering and regulating the air that actuates clamps and tool-changer cylinders on a machining centre, specified as the low-pressure type for a circuit whose set pressure sits below the standard range; confirm the exact setting with us.
Conditioning air for the cylinders and grippers on a carton-forming and sealing conveyor, with the 40 um element catching water and debris before it reaches the directional valves.
Feeding filtered, regulated air to the stopper and capping actuators on a bottling line, with the square psi gauge giving operators a local pressure readout at the machine.
The real choices in this family are the size and port step, matched to the flow your line needs: sizes 200, 300, 400 and 600 map to ports from 1/8 in up to 1 in, and this unit sits at size 300 with a 1/2 in NPT port. Drain type is a working choice - differential-pressure (as fitted here), automatic, or manual - and filter grade is 40 um standard or 5 um with code W. Gauge scale can be MPa, psi or bar; this unit reads psi on the embedded square gauge. Thread is PT as the catalogue standard with G and NPT as order options, and a bracket is optional (not fitted here). Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing against the datasheet before you order.
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 series as curves rather than a single rated figure, so there is no one number we can quote. Send us your inlet pressure, set pressure and required flow, and we will confirm sizing from the datasheet on request.
The differential-pressure drain fitted here bleeds condensate automatically as the pressure drop across the element rises, with no extra signal needed. A fully automatic drain (code A) or a manual drain (code M) can be ordered instead, and the drain choice interacts with the regulator adjustment range, so tell us your set pressure and we will confirm the right version.
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.