The AirTAC GFR30015LC2WT AirTAC Filter Regulator 1/2 in NPT is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/2" 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 GFR300 is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This configuration, GFR30015LC2WT, is the size 300 unit with a 1/2 in NPT port, the 5 um (code W) filter element instead of the standard 40 um, a differential-pressure drain, the low-pressure regulator variant, and a round psi gauge fitted. The polycarbonate bowl lets you see the condensate level, and a mounting bracket is included.
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, in PT, G (BSPP) and NPT threads, with differential-pressure, automatic or manual drains, 40 um or 5 um elements, and a choice of gauge scales (MPa, psi or bar). Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm figures from the datasheet for your application.
| Model | GFR30015LC2WT AirTAC Filter Regulator 1/2 in NPT |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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 — round, psi 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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. |
|---|---|
| 15 | Port size PT1/2". 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)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding tool-clamp and tool-changer actuators on a machining centre, where the 5 um element shields precision valves from water and swarf carried in shop air and the regulator holds a steady working pressure.
Supplying filler, capper and rejector cylinders on a bottling line; the polycarbonate bowl and differential-pressure drain keep condensate handling simple across a long production shift.
Regulating the supply to a valve island on a carton-packing machine, where the low-pressure variant and the round psi gauge let the line setter read and adjust circuit pressure directly at the unit.
Choose the size by port and required flow: size 300 with the 1/2 in NPT port sits mid-range in the series (200/300/400/600). Pick the drain type - differential-pressure (the default, fitted here), automatic (code A) or manual (code M). Pick the element: 40 um standard, or 5 um (code W) as fitted on this unit for finer protection of downstream components. For gauges, an embedded square gauge is standard and an external round gauge is optional in MPa, psi or bar scales - this model carries the round psi gauge. On threads, PT is the series standard; G (BSPP) and NPT (this model's T suffix) are ordered by code. A mounting bracket is included unless the J (no bracket) code is specified. Flow is published as curves, not a single rating, so 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 the GFR300 series as curves rather than a single rated figure, so no flow number is quoted here. Contact us and we will confirm the flow from the datasheet against your application before you order.
L marks the low-pressure regulator variant of the GFR300. The exact adjustment range for this variant is not published in the catalogue material we can quote, so ask us to confirm the working range for your circuit. Like the standard unit, this model has a 1.0 MPa (145 psi) maximum inlet pressure, a -5 to 70 C operating range and a 1/2 in NPT port.
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.