The AirTAC GFR30010MLC2K AirTAC Filter Regulator PT3/8 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 PT3/8" 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 GFR30010MLC2K is a size-300 filter regulator that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the low-pressure type, built for circuits that run well below standard line pressure, with a 3/8 in PT thread, a 40 um standard filter element and a manual-drain polycarbonate bowl you empty by hand. A reverse/check valve is fitted to hold downstream pressure if the supply drops, and a mounting bracket is included. The round external gauge on this unit reads in psi, so operators can set and monitor pressure directly in US units.
This is a genuine AirTAC part. The GFR series is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drains, a 40 um standard or 5 um (W) element, gauge scale options, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR30010MLC2K AirTAC Filter Regulator PT3/8 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (PT 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 | Fitted (reverse flow permitted) |
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. |
|---|---|
| 10 | Port size PT3/8". 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. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Supplies filtered, low-pressure air to clamp cylinders on a CNC fixture, with the psi gauge letting the setter dial in the holding pressure and the check valve holding the clamp if shop air drops.
Conditions the air feeding spray guns in a finishing line: the 40 um element strips water and particulate that would spoil the finish, and the low-pressure type matches gun and atomising pressures.
Feeds the diverters, pushers and stop cylinders along a packaging conveyor, with the manual-drain bowl emptied during routine line walks and the bracket mounting the unit at the line drop.
Start with the port step: this unit is size 300 with a 3/8 in PT thread, one step up from the 1/4 in size-300 option, so pick the size whose flow curve covers your demand rather than upsizing blindly. The manual drain here suits installations someone already visits regularly; choose automatic or differential-pressure drain codes if the bowl is hard to reach. The 40 um element is the standard grade; order the W variant if the 5 um grade is required. The round gauge on this unit reads psi; square embedded gauges and MPa or bar scales are the other catalogue choices. PT is the standard thread, with G (BSPP) and NPT available as order options, and the bracket is included.
One honest note on sizing: AirTAC publishes flow as curves, not a single rated number, so send us your application details and we will confirm the right size against the datasheet before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the datasheet flow curve and check the sizing against your demand on request.
The M in the code selects the manual-drain bowl: collected condensate is emptied by hand rather than automatically. It is the right choice where the unit is mounted somewhere accessible on a regular maintenance route; for hard-to-reach installations, order the automatic (A) or differential-pressure (blank) drain variant instead.
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.