The AirTAC GFR30010ALF2W AirTAC Filter Regulator PT3/8 Low-Pressure 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 automatic 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 GFR30010ALF2W is a size-300 filter regulator: it removes water and particulate from compressed air and sets downstream pressure in a single compact body, so one unit does the work of a filter and a regulator. This configuration carries a PT3/8 (3/8 in) port with PT thread, a 5 um filter element (the fine grade; 40 um is the standard option), an automatic drain that ejects collected condensate without manual attention, and a low-pressure regulator type for circuits set below the standard range. The embedded square gauge reads in psi, the polycarbonate bowl suits the 300 size, maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C, non-freezing. A mounting bracket is included.
This is a genuine AirTAC part from the G-series air-treatment line, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options for drain type, filter grade, gauge scale, thread (PT standard, G and NPT to order) and bracket. Flow figures are published as curves rather than a single rating, so we confirm the datasheet and sizing for your application on request.
| Model | GFR30010ALF2W AirTAC Filter Regulator PT3/8 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (PT 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 | Automatic 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". |
| A | Drain: Automatic 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). |
| 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) |
Feeds and regulates the clamp cylinders of a press fixture where the setpoint sits below the standard regulator range, with the 5 um element protecting the directional valve from water and fine debris.
Mounted at the drop of a packaging line's air supply to clean and regulate the air feeding bagger and sealing actuators, with the automatic drain handling condensate through multi-shift running.
Sits ahead of the valve manifold on a robotic pick-and-place cell, holding a stable low setpoint for gentle gripper action while the fine element keeps solenoid valves clean.
Size and port: the 300 size with its PT3/8 port is the middle step of the G-series range (200/300/400/600); step up or down according to the pipe size and air demand of the circuit, and ask us to check the flow curves against your consumption before ordering. Drain: the automatic drain here suits unattended duty; manual and differential-pressure drains are the other catalogue choices. Filter grade: this unit carries the 5 um W element for finer protection; the 40 um standard element is the alternative. Gauge: the embedded square gauge reads psi; MPa and bar scales and an external round gauge are options. Thread: PT is standard on this model, with G (BSPP) and NPT available as order options. The low-pressure regulator type is the right pick where the setpoint sits below the standard range; mounting bracket included.
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 series as curves, not as a single rated number, so we do not quote a figure here. Send us your line pressure, setpoint and air consumption and we will confirm the sizing against the datasheet curves on request before you order.
The A in the code sets the automatic drain, which ejects collected condensate without anyone opening the bowl, and the W sets the 5 um fine filter element instead of the 40 um standard. Both are catalogue choices: manual and differential-pressure drains and the 40 um grade are available if your circuit prefers them.
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.