The AirTAC GFR30015MLC2T 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 PT1/2" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR30015MLC2T is a 300-size filter regulator that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 1/2 in NPT port, a 40 um standard filter element, a manual drain on the polycarbonate bowl, and a round pressure gauge reading in psi. It is the low-pressure type, intended for circuits set well below standard line pressures, and a mounting bracket is included.
This is a genuine AirTAC part from the GFR family, which spans sizes 200, 300, 400 and 600 with port options from 1/8 to 1 in and PT, G or NPT threads. Automatic, manual and differential-pressure drains, a 5 um element, gauge styles and scales are available across the range. Flow is published as curves rather than a single rating, so we confirm the datasheet figures for your application on request.
| Model | GFR30015MLC2T AirTAC Filter Regulator NPT1/2 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 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. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
On an assembly line where pneumatic clamps and swing cylinders are set to gentle holding pressures, this filter regulator cleans the supply and holds the reduced setting, with the psi gauge giving the operator a direct readout at the fixture.
On a cartoning or wrapping machine fed from a shop-air main, the unit strips water and 40 um particulate before the valves and sets the reduced pressure the packaging actuators were designed around, with the manual drain bled during changeover.
On a laboratory test bench or pilot rig running at modest pressures, the low-pressure type regulator gives finer control of the reduced setting than a standard unit, while the filter protects sensitive instruments and cylinders downstream.
Start with the port step: the 300 size takes a 1/2 in port, one step above the 200/08 and one below the 400/20, so match it to your line size and the flow your circuit needs. Because flow for this family is published as curves and not a single rated figure, ask us to confirm sizing against your application before ordering. For the drain, manual suits points that are bled at scheduled intervals; automatic or differential-pressure drains suit unattended duty. The 40 um element is standard here; specify the W suffix if your circuit needs the 5 um grade. The fitted round gauge reads in psi, and square or MPa/bar scales are alternatives. PT is the standard thread, with G and NPT as orderable options; this unit is ordered in NPT. A bracket is included with this configuration.
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 characteristic curves, not as a single rated figure, so we do not quote a number. Tell us your line pressure, set pressure and the air demand of the circuit, and we will confirm the sizing from the datasheet on request.
The M in the code selects the manual drain: condensate collects in the polycarbonate bowl and is released by hand when opened. It suits points that are checked on a schedule; if the installation is unattended, ask us about the automatic or differential-pressure drain versions of the same size.
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.