The AirTAC GFR30010ALC2W AirTAC Filter Regulator PT3/8 5 um Auto Drain 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 GFR30010ALC2W 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 fitted with a 5 um filter element (code W), an automatic drain that expels collected condensate without manual attention, the low-pressure regulator type, and a round pressure gauge reading in psi. The port is PT3/8 (3/8 in, PT thread standard), the polycarbonate bowl suits the non-freezing -5 to 70 C operating range, and a mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, drain choices (differential-pressure, automatic or manual), 40 um standard or 5 um filtration, gauge and thread options, and standard or low-pressure regulator types. Flow is published as curves rather than a single rating, so ask us to confirm the figures for your application on request.
| Model | GFR30010ALC2W AirTAC Filter Regulator PT3/8 5 um Auto Drain |
|---|---|
| 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 — 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. |
|---|---|
| 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). |
| C | Gauge shape: Round. 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 cleaned, regulated low-pressure air to the clamping and ejection cylinders on a carton-sealing or case-packing line, with the 5 um element protecting directional valves from water and grit.
Supplies a bench drop on a chemical pilot skid where a lower regulated supply pressure is wanted and the automatic drain keeps the drop dry between shifts without operator attention.
Conditions the air feeding loom and spinning-frame jet circuits, filtering to 5 um ahead of fine nozzles while the low-pressure regulator type holds a gentle working pressure.
Size the unit by the port and flow step: size 300 with a 3/8 in PT port sits mid-range in the GFR family, with sizes 200, 400 and 600 available if your line needs a smaller or larger step. This unit carries the 5 um element (W) instead of the 40 um standard, which suits finer-point applications; the 40 um version is the usual choice for general supply. The automatic drain (A) handles condensate removal on its own, where the differential-pressure default and the manual-drain option require attention or a pressure differential. The C2 code specifies the optional external round gauge with a psi scale; the embedded square gauge (MPa/psi/bar scales) is the standard alternative. Thread is PT as standard, with G (BSPP) and NPT available as order options, and the bracket is included. Because flow is published as curves rather than a single rated figure, 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 GFR series as curves, not as a single rated number, so we do not quote a figure here. Tell us your application and we will confirm the relevant flow data from the datasheet on request before you order.
The A in the code specifies the automatic drain, which discharges collected condensate by itself instead of relying on a pressure differential or manual draining. The W specifies the 5 um filter element in place of the 40 um standard, for finer removal of water and particulate. Both are catalogue choices, and the 40 um or manual-drain versions can be ordered if they suit the job better.
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.