The AirTAC GFR30010ALF1T AirTAC Filter Regulator NPT3/8 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 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 GFR30010ALF1T is a GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This unit is built on the GFR300 size with a 3/8 in NPT thread, an automatic drain that clears collected condensate from the PC (polycarbonate) bowl without manual attention, a 40 um standard filter element, and the low-pressure regulator type. A square pressure gauge scaled in MPa is fitted, a mounting bracket is included, and the maximum inlet pressure is 1.0 MPa (145 psi) with a working temperature of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR300 sits in the GFR range that spans sizes 200, 300, 400 and 600, with port sizes from 1/8 to 1 in, PT as the standard thread and G or NPT as order options, manual or differential-pressure drain variants, a 5 um (W) filter element, and external round gauges with MPa, psi or bar scales where the configuration allows. Rated flow is published as curves rather than a single figure, so ask us to confirm sizing and any datasheet figure against your application before ordering.
| Model | GFR30010ALF1T AirTAC Filter Regulator NPT3/8 Low-Pressure |
|---|---|
| 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, MPa 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. |
| 1 | Gauge scale: MPa. 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) |
Regulates and cleans the air feeding clamp and hold-down cylinders on a carton-sealing machine, with the automatic drain clearing bowl condensate through continuous shifts and the 3/8 in port matching the machine's air drops.
Supplies filtered, pressure-controlled air to spray guns in a paint booth, where the 40 um element keeps water and particulate out of the finish and the low-pressure regulator type suits circuits held at reduced settings.
Feeds pilot supply to diaphragm-controlled process valves on a treatment skid, holding a steady reduced pressure from the plant-air main through the 3/8 in NPT connection.
Choose the GFR300 size when your circuit runs 3/8 in piping; the 200/300/400/600 steps trade port size and flow capacity, and since AirTAC publishes flow as curves rather than a single rating, send us your demand and we will confirm the fit before you order. This unit already carries the automatic drain, the 40 um element and the low-pressure regulator; if you would rather empty the bowl yourself, the manual-drain variant suits intermittent or low-condensate duty, and the 5 um (W) element is available when finer filtration matters. The fitted square gauge reads in MPa, and round external gauges in psi or bar scales are offered in the range. The thread here is NPT - PT is the AirTAC standard and G (BSPP) is the other order option - and a mounting bracket is 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 filter-regulator flow as performance curves rather than a single rated figure, so we do not quote a number here. Send us your flow demand and line conditions and we will confirm sizing against the datasheet on request.
The L in the code marks the low-pressure regulator type, intended for circuits that hold reduced set pressures. The exact adjustment range for this variant is not published in the material we hold, so confirm it with us on request before ordering. Everything else decodes normally: 3/8 in NPT port, automatic drain, 40 um element, square MPa gauge and included bracket.
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.