The AirTAC GFR30010ALF3T AirTAC Filter Regulator, 3/8 in NPT 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 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 GFR30010ALF3T is a GFR-series filter regulator: water and particulate filtration plus pressure regulation in a single body, with no lubricator. This 300-size unit is threaded 3/8 in NPT, carries the standard 40 um filter element, and drains condensate automatically, so the bowl empties itself while the line keeps running. The regulator is the low-pressure type, and an embedded square gauge with a bar scale is fitted. A polycarbonate bowl, a mounting bracket, a maximum inlet pressure of 1.0 MPa (145 psi) and a -5 to 70 C (non-freezing) operating range complete the configuration.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and each size can be ordered with a different drain type, a 5 um element (code W), MPa, psi or bar gauge scales, a reverse/check valve, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rating, so ask us to confirm the figures against your application before ordering.
| Model | GFR30010ALF3T AirTAC Filter Regulator, 3/8 in NPT |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 40 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, bar 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. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeding filtered, regulated air to the valves and cylinders of a small stamping or forming press, where the tooling calls for the low-pressure regulator type and a bar-scale gauge gives the setter a readable setting.
Conditioning the air that drives grippers, pushers and stopper cylinders on a bottling or cartoning line, with the automatic drain keeping condensate out of the valves through continuous shifts.
A filtered, regulated take-off on a factory air ring serving air-operated instruments, spray nozzles or workbench tasks, where the 40 um element and square gauge keep the supply clean and readable.
Size and port are the first choice: step through 200, 300, 400 and 600 to match the flow your circuit needs, with ports from 1/8 to 1 in; this unit sits at 300 with 3/8 in NPT. Next, pick the drain: automatic (this unit, code A) empties the bowl without attention, manual (M) needs an operator, and the blank default is differential-pressure. Filter grade is 40 um standard or 5 um with code W for finer particulate. Gauges can be square (embedded) or round (external) with MPa, psi or bar scales; this unit carries a square, bar-scale gauge. Threads are PT as standard with G and NPT as order options, and a bracket is included on this model. Because flow is published 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 GFR series as curves rather than a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow from the datasheet on request before you order.
Code A in this model means the bowl expels collected condensate automatically while the unit is working. The same size can be ordered with a manual drain (code M) or the differential-pressure default (no code); tell us which suits your maintenance routine.
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.