The AirTAC GFR300C15LJC2W AirTAC Filter Regulator PT1/2, 5 um 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 GFR300C15LJC2W is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This size 300 unit is threaded PT1/2 and built as the low-pressure regulation type, fitted with a 5 um filter element (code W) for finer particle capture than the standard 40 um grade. Condensate is removed by the differential-pressure drain, the bowl is metal, and the configuration includes an external round gauge reading in psi; no mounting bracket is supplied.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um elements, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Because flow is published as curves rather than a single rating, we confirm the datasheet figures for your application on request.
| Model | GFR300C15LJC2W AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| 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 low-pressure clamp and hold-down cylinders on a bottling line, where the 5 um element keeps spool valves clean and the regulator holds a gentle, stable setpoint.
Supplying filtered, regulated air to laboratory automation modules and small test rigs that run at reduced pressure and cannot tolerate water or fine particulate.
Regulating air to gate, stopper and diverter cylinders along a packaging conveyor, with the differential-pressure drain bleeding collected condensate during operation.
Choose the size and port against the air demand of the circuit: this unit is size 300 with a PT1/2 port, and larger sizes carry larger ports and more flow. The 5 um element (code W) suits circuits with sensitive valves or instruments; the standard grade is 40 um. Drain options are differential-pressure (fitted here), automatic, or manual. The regulator in this configuration is the low-pressure type, intended for circuits controlled at reduced pressure - ask us to confirm its exact adjustment range from the datasheet. The round psi gauge is fitted; embedded square gauges with MPa, psi or bar scales are the alternative. Thread is PT as standard, with G (BSPP) and NPT available to order, and a bracket can be added if panel or wall mounting is needed. Flow is published as curves, not a single rating, so send us your application parameters and we will confirm sizing 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 filter-regulator flow as performance curves rather than a single rated figure, so we do not quote one number. Send us your line pressure, setpoint and expected air consumption and we will confirm the flow figures from the datasheet before you order.
The GFR series is offered with a 40 um standard element or a finer 5 um element ordered with the W code. This unit carries the 5 um grade, which suits downstream valves, cylinders and instruments that need finer particle capture, while the differential-pressure drain handles the collected condensate.
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.