The AirTAC GFR300C15LC1TK 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 GFR300C15LC1TK is a size-300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is ordered with 1/2 in NPT ports, the standard 40 um filter element, and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element rises. The regulator is the low-pressure type, an external round gauge on the MPa scale is fitted so you can read and set outlet pressure at a glance, and a reverse/check valve is built in. The polycarbonate bowl suits non-freezing compressed-air service from -5 to 70 C, with a maximum inlet pressure of 1.0 MPa (145 psi), and a mounting bracket is included.
This is a genuine AirTAC part from the G-series air-treatment line, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, plus options for thread type (PT standard, G or NPT), drain type, 5 um filtration (code W), gauge scale and check valve. Rated flow for G-series units is published as curves rather than a single figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR300C15LC1TK 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) |
Supply filtered, low-pressure regulated air to clamp cylinders on a machining fixture, with the round MPa gauge letting the setter verify clamp pressure at the panel and the check valve holding the circuit if upstream supply dips.
Feed a spray gun or small coating head on a lab or finishing line, where the 40 um element strips water and pipe scale ahead of the regulator and the low-pressure type suits processes that run below normal plant pressure.
Condition and regulate air to the cylinders and actuators of a carton or bottle packaging machine, using the differential-pressure drain to clear condensate automatically between shifts and the included bracket for panel mounting next to the machine.
Size 300 with 1/2 in ports sits in the middle of the G-series range: step up to size 400 or 600 if your line needs more flow, or down to size 200 if the circuit is small. This unit carries the standard 40 um element, which suits general plant air; choose the W-code 5 um element only where downstream components need finer filtration. The differential-pressure drain is hands-off and works well where the unit can be mounted upright and serviced on a normal cycle; specify an automatic drain (A) for unattended duty or a manual drain (M) where you want full operator control. The fitted round gauge reads in MPa; psi and bar scales are orderable, and an embedded square gauge is the standard alternative. Thread here is NPT; PT is the AirTAC standard and G (BSPP) is also a catalogue option. A bracket is included, and the K code means the reverse/check valve is already fitted.
One honest note on sizing: AirTAC publishes G-series flow as curves, not as a single rated number, so we cannot quote you a rated l/min or SCFM figure. Send us your application details and we will confirm the flow curve and 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 G-series flow as performance curves rather than a single rated figure, so we do not quote a rated l/min, m3/h or SCFM number for this unit. Tell us your application and operating pressure and we will confirm the flow curve and datasheet on request so you can size the 1/2 in port against your demand before ordering.
The L code means the regulator in this GFR300 is the low-pressure type rather than the standard version. The exact adjustment range for the low-pressure variant is not published in our current data sheet, so please confirm it with us on request. For reference, standard-type GFR units with differential-pressure or automatic drains adjust over 0.15-0.9 MPa (20-130 psi), but that range should not be assumed for this L-coded unit.
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.