The AirTAC GFR300C15ALF2W AirTAC Filter Regulator 1/2 in PT 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 GFR300C15ALF2W is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the 300 size with a 1/2 in PT port, a 5 um filter element (the finer of the two published grades), an automatic drain that expels collected condensate without manual attention, and the low-pressure regulator type. An embedded square gauge reading in psi is fitted, the bowl is metal, a mounting bracket is included, and no reverse/check valve is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and published options include manual or differential-pressure drains, the 40 um standard element, alternative gauge scales (MPa, psi or bar) and G or NPT threads in place of PT. Rated flow is published as curves rather than a single figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C15ALF2W AirTAC Filter Regulator 1/2 in PT |
|---|---|
| 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 a bench-mounted pneumatic press on an assembly line: the 5 um element keeps scale and pipe debris out of the press valve, while the regulator holds a steady low-pressure setting at the tool.
Supplying the sealing jaws and hold-down cylinders of a packaging line: the automatic drain clears condensate without an operator visiting the machine, and the psi gauge lets line staff verify the set point at a glance.
Conditioning the air feeding a loom's air jets and fabric-tension cylinders: one body does both the filtering and the low-pressure regulation, freeing panel space in the machine's air-preparation cubicle.
Choose the size and port against the air consumption of the downstream circuit: GFR300 with its 1/2 in PT port sits in the middle of the 200/300/400/600 range, and stepping up a size gives a larger port and more flow capacity. This unit already carries the 5 um element (40 um is the standard grade where finer filtration is not needed) and the automatic drain; manual and differential-pressure drains are the other published choices. The fitted square gauge reads psi, with MPa or bar scales available instead. PT is the standard thread; G (BSPP) and NPT are order options. A mounting bracket is included. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing against the 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 flow for this family as curves rather than a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow from the datasheet so you can size the unit correctly.
The L in the code marks the low-pressure regulator type; the exact adjustment range is not published in the catalogue, so we confirm it on request. The automatic drain expels collected condensate from the metal bowl by itself, so the unit does not need to be drained manually.
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.