The AirTAC GFR300C15ALF2T 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 GFR300C15ALF2T is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single compact body. This 300-size unit is built with 1/2 in NPT ports, the low-pressure regulator type, a 40 um standard filter element, and an automatic drain that ejects collected condensate without manual attention. The embedded square gauge reads in psi so the set pressure is visible at a glance, and the mounting bracket is included for secure panel or frame installation.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port options from 1/8 to 1 in, a choice of automatic, manual or differential-pressure drains, an optional 5 um element, and MPa, psi or bar gauge scales. Flow is published as curves rather than a single rating, so ask us to confirm the figures for your application before ordering.
| Model | GFR300C15ALF2T 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, regulated air to a bench pneumatic press or clamping fixture, where the low-pressure regulator type holds a gentle, repeatable setting and the psi gauge lets the operator verify it.
Conditioning the air supply to conveyor-mounted packaging cylinders and diverters, with the automatic drain clearing condensate through long shifts so no one has to bleed bowls by hand.
Serving individual drop lines on textile or converting machinery, where the 40 um element protects air jets and the included bracket mounts the unit cleanly at the machine frame.
Size and port set the flow capacity: this unit is size 300 with 1/2 in NPT ports, one step up from the 1/4 in class, so match it to your line's air demand. The automatic drain suits unattended or hard-to-reach installations; manual and differential-pressure drains are the alternatives on other variants. The 40 um element is the standard grade, with 5 um (code W) available where finer filtration is needed. The low-pressure regulator type is intended where regulated settings sit below the standard range - the exact range is not published, so confirm it with us. The square gauge here reads in psi; MPa and bar scales and an external round gauge are options. PT is the standard thread, with G and NPT as orderable variants, and a bracket is included with this unit. Because flow is published as curves rather than a single rating, ask us to confirm sizing 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 flow for this series as curves rather than a single rated figure, so we do not quote a number. Tell us your application and we will confirm the flow figures from the datasheet on request before you order.
This configuration carries code A, the automatic drain, which ejects collected condensate on its own. It suits installations that run unattended or sit where a manual drain would be awkward to reach; manual and differential-pressure drains are available on other GFR variants.
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.