The AirTAC GFR300C15LJNWT AirTAC Filter Regulator NPT1/2 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 GFR300C15LJNWT is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit carries a 1/2 in NPT port, a 5 um filter element (the finer of the two published grades), a differential-pressure drain and a metal bowl. It is the low-pressure regulator type, is supplied without a gauge and without a mounting bracket, and is rated for a maximum inlet pressure of 1.0 MPa (145 psi) at -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with a choice of differential-pressure, automatic or manual drain, 40 um standard or 5 um filtration, gauge options and scale, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm sizing figures and the datasheet for your application before ordering.
| Model | GFR300C15LJNWT AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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) |
Filtered, regulated air to the clamps and fixtures that hold workpieces on a low-pressure circuit; the 5 um element keeps dirt and carried-over water out of the clamp cylinders and valves.
Spray guns need clean air at a controlled, modest pressure; this unit filters to 5 um and regulates the supply to the booth, with the differential-pressure drain clearing condensate from the metal bowl.
A regulated supply for diverters, pushers and stopper cylinders on packaging conveyors, sized at the 1/2 in port for branch lines feeding several stations.
Choose the size by port and flow: 200, 300, 400 and 600 step up in port and capacity, and this 300 sits at 1/2 in NPT. Because flow is published as curves rather than one rated figure, send us your flow and pressure requirements and we will confirm the right size from the datasheet. Other decodable choices: drain type (differential-pressure as here, automatic, or manual), filter grade (40 um standard or 5 um as fitted here), gauge and scale, thread (PT standard; G and NPT as order options) and bracket. This unit is the low-pressure regulator type with no gauge and no bracket; the exact set range for the low-pressure type is not published, so confirm it with us if your circuit runs at low pressure.
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 curves rather than a single rated figure, so we do not quote a number here. Tell us your flow and working pressure and we will confirm suitability from the datasheet before you order.
No. The N in the code means no gauge is fitted on this configuration. Gauge options with different scales are available on other GFR variants, so ask us if your setup needs a readout.
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.