The AirTAC GFR30015MLC2G AirTAC Filter Regulator G1/2 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 GFR30015MLC2G is an AirTAC GFR300 filter regulator: a 300-size unit that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has a G1/2 (BSPP) port, a manual-drain polycarbonate bowl, a 40 um filter element and a round pressure gauge reading in psi. It is the low-pressure regulator type, and an included mounting bracket secures the bowl. Maximum inlet pressure is 1.0 MPa (145 psi), with an operating temperature of -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans 200 to 600 sizes with ports from 1/8 to 1 inch, a choice of manual, automatic or differential-pressure drains, 40 um standard or 5 um (code W) filtration, embedded square gauges as standard with optional external round gauges in MPa, psi or bar scales, and PT, G or NPT threads. AirTAC publishes flow only as curves rather than a single rating, so we confirm flow and datasheet figures for your application on request.
| Model | GFR30015MLC2G AirTAC Filter Regulator G1/2 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (G (BSPP) 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. |
| G | G (BSPP) 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 a fixture with low-pressure clamping cylinders, this filter regulator cleans the supply air and holds a reduced, low-pressure setting at the clamp circuit, with the round psi gauge giving a direct reading of the set point.
Feeding the cylinders of a carton sealer, the unit strips condensate and pipe-scale particles from the shop air and drops line pressure to the level the sealing cylinders need, with the manual drain bled during changeover.
At the drop to a spray gun in a paint booth, the 40 um element catches water and scale before the gun while the low-pressure regulator sets the atomising pressure, and the psi gauge lets an operator verify the setting at a glance.
Choose the size by port and required flow: this 300-size unit carries a G1/2 port, and larger sizes move more air. Drain choice matters: manual (this unit) needs periodic bleeding, automatic drains continuously, and the differential-pressure default drains on pressure drop. Filtration is 40 um standard; specify 5 um (code W) where finer protection is needed. Gauges are embedded square as standard with an optional external round gauge in MPa, psi or bar scales - this unit carries the round psi gauge. Threads are PT as standard with G and NPT as order options, and a bracket is included. Because AirTAC publishes flow 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 the GFR300 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 on request before you order.
The M in the code specifies a manual drain, so condensate in the polycarbonate bowl is bled by hand. The GFR300 is also available with an automatic drain (code A) or the differential-pressure default - tell us which you prefer and we will quote the matching model.
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.