The AirTAC GFR300C15LC3T 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 GFR300C15LC3T is an AirTAC GFR300 filter regulator: a single body that removes water and particulate from compressed air and holds a set downstream pressure. This configuration is the 300 size with 1/2 in NPT ports, standard 40 um filtration, a differential-pressure drain, the low-pressure regulator type, a round gauge with bar scale fitted, and the mounting bracket included. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is available in 200, 300, 400 and 600 sizes with PT, G or NPT threads, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um (W) filtration, square or round gauges with MPa, psi or bar scales, and optional brackets. Flow is published as curves rather than a single rating, so we confirm datasheet and sizing figures on request.
| Model | GFR300C15LC3T 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) |
Feeding filtered, gently regulated air to a light-duty pneumatic press or clamping fixture on an assembly line, where the low-pressure type lets the operator hold a soft downstream setting for delicate forming work.
Supplying clean, regulated air to a laboratory coating rig or small spray-finishing station, where the 40 um element keeps water and particles out of the finish and the low-pressure setting protects the workpiece.
Conditioning air for cylinders and grippers on a packaging conveyor, combining water and particulate removal with a stable low-pressure setting so pick-and-place motions stay consistent through the shift.
Step through the 200/300/400/600 sizes to match the port and flow your line needs; this unit sits at 300 with 1/2 in NPT ports. Choose the drain: differential-pressure (as fitted here), automatic, or manual. Filtration is 40 um standard; specify W for 5 um where finer particle capture matters. Gauges come as the embedded square type or an external round gauge in MPa, psi or bar scales - this unit carries a round bar gauge. Threads are PT as standard with G and NPT as order options. Note that this is the low-pressure regulator type and its exact adjustment range is not published, and flow is given as curves rather than a single rating - ask us to confirm both against your application before ordering.
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 GFR300 flow as curves rather than a single rated figure, so we do not quote a number here. Send us your line pressure, set pressure and air consumption and we will confirm the flow from the datasheet on request.
This unit is the low-pressure regulator variant, intended for applications set well below the standard range. Its exact adjustment range is not published, so tell us your target downstream pressure and we will confirm suitability on request. Drain is differential-pressure and filtration is the 40 um standard element.
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.