The AirTAC GFR30010MLF2W AirTAC Filter Regulator PT3/8 5um 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 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 GFR30010MLF2W 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 5 um filtering element (the tighter of the two published grades), a manual drain for controlled, operator-timed bowl draining, and a low-pressure regulator type for circuits that run below standard regulated pressures. It is fitted with an embedded square gauge scaled in psi, and the 300 size takes PT3/8 (3/8 in) ports in the standard PT thread.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of drain types, 40 um or 5 um elements, gauge styles and scales, and G or NPT thread options to order. Max inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application.
| Model | GFR30010MLF2W AirTAC Filter Regulator PT3/8 5um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (PT thread) |
| Filtering grade | 5 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 — square, 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. |
|---|---|
| 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). |
| F | Gauge shape: Square. 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. |
| (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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
On a CNC fixture line that clamps workpieces at reduced air pressure, the GFR30010MLF2W filters the shop air to 5 um before the clamping cylinders and holds the regulated low pressure the fixture was designed around, with the psi gauge giving the operator a direct reading at the cell.
On a carton-packaging conveyor with air-driven diverters and stop gates, this filter regulator cleans water and particulate out of the supply before the directional valves and sets the lower operating pressure those actuators need, with the manual drain emptied during planned line cleaning.
Inside a bottling-plant control cabinet supplying pneumatic positioners and pilot valves, the 5 um element protects sensitive pilot components from water and fine dirt, while the low-pressure regulator type and psi-scaled square gauge suit control circuits that run below standard plant pressure.
Size the unit by port step against your air demand: this 300-size model has PT3/8 (3/8 in) ports, and the family steps 200/300/400/600 with larger ports carrying more flow. Because flow is published as curves and not as a single rated figure, ask us to confirm sizing against your application before ordering. This unit is the low-pressure regulator type - if your circuit runs at standard regulated pressures, the standard type may be the better match; we can confirm the published range on request.
Other decodable choices: the 5 um element here is the tighter option (40 um is the standard grade) - choose 5 um where downstream valves or instruments need finer protection. The manual drain means an operator drains the bowl on a schedule; automatic or differential-pressure drains are available if you prefer unattended operation. The square gauge is scaled in psi (MPa and bar scales are alternatives). PT is the standard thread; G (BSPP) and NPT are order options. A mounting 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 G-series flow as performance curves rather than a single rated figure, so we do not quote a flow number for this unit. Send us your application details - line pressure, downstream consumption and port size - and we will confirm the datasheet flow curves and check the 300-size PT3/8 configuration against your demand before you order.
The M in the code specifies a manual drain: an operator opens the drain at planned intervals to empty collected water from the PC bowl. That suits lines with regular maintenance windows. If the unit will sit unattended, the automatic drain (code A) or the differential-pressure drain (the family default) drains the bowl without operator action - both are available in the same 300-size PT3/8 configuration.
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.