The AirTAC GFR300C15C3TK 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 GFR300C15C3TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 configuration comes with a 1/2 in NPT port, the standard 40 um filter element, a differential-pressure drain, and a round pressure gauge reading in bar. A reverse (check) valve is fitted to block reverse flow, and the mounting bracket is included. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and the unit is rated for a maximum inlet pressure of 1.0 MPa (145 psi) at -5 to 70 C (non-freezing). The polycarbonate bowl keeps condensate and element condition visible at a glance.
This is a genuine AirTAC part. The GFR series is offered in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, a choice of PT, G (BSPP) or NPT thread, manual, automatic or differential-pressure drains, 40 um or 5 um (W) filtration, embedded square or external round gauges scaled in MPa, psi or bar, and an optional low-pressure regulator type. Flow is published as curves rather than a single rated figure, so ask us to confirm flow and datasheet details against your application before ordering.
| Model | GFR300C15C3TK 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 and regulated air to tool clamps and tool-change cylinders on a CNC machining centre: the 40 um element catches pipe scale and condensate, the regulator holds the circuit setting, and the fitted check valve blocks reverse flow at shutdown.
Supplying sorting and carton-sealing cylinders on a packaging conveyor, where the regulator keeps a steady downstream setting as line demand changes and condensate is handled by the differential-pressure drain.
Point-of-use treatment at assembly-station air drops serving air screwdrivers and small pneumatic press cylinders, with the included bracket mounting the unit at the drop and the bar-scale gauge giving operators a local pressure readout.
Size and port step up together across the GFR family: sizes 200, 300, 400 and 600 cover 1/8 in through 1 in, so choose the size whose flow curve covers your demand at an acceptable pressure drop - we can read the curve with you. Drain choice is differential-pressure (standard, fitted here), automatic (code A) or manual (code M); filtration is 40 um standard or 5 um with code W where finer particle capture is needed. Gauges are the embedded square type or an external round gauge, scaled in MPa, psi or bar - this unit carries a round gauge reading in bar. Thread is PT as the standard; G (BSPP) and NPT (as ordered here) are catalogue options, and the bracket is included unless code J is specified. Because flow is published as curves and not a single rating, ask us to confirm sizing against your application 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, not as a single rated figure, so we do not quote a number here. Send us your required flow and working pressure and we will confirm against the datasheet curve whether this size 300 unit with a 1/2 in port suits your application.
This unit uses the differential-pressure drain, the standard option in the series, which discharges collected condensate based on the pressure differential across the unit rather than a manual action. The catalogue also offers an automatic drain (code A) and a manual drain (code M) on the GFR family if your installation prefers a different arrangement.
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.