The AirTAC GFR30010ALC3TK AirTAC Filter Regulator NPT3/8 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 GFR30010ALC3TK is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This unit is built for a 3/8 in NPT port, carries the standard 40 um filter element, and drains its polycarbonate bowl automatically, so collected condensate is discharged without manual attention. It is the low-pressure type (code L), fitted with an external round gauge scaled in bar, a reverse/check valve (code K) and a mounting bracket.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, and can be ordered with manual or differential-pressure drains, a 5 um (W) element, embedded square or external round gauges in MPa, psi or bar scales, and PT, G or NPT threads. Maximum 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 to confirm datasheet figures for your application.
| Model | GFR30010ALC3TK AirTAC Filter Regulator NPT3/8 |
|---|---|
| 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 — round, bar scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
| 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. |
| K | Reverse-flow (reflux) valve fitted. |
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) |
On a CNC fixture line, this unit filters the shop air feeding the clamping cylinders and regulates it at a reduced, low-pressure setting so delicate parts are gripped without distortion, while the automatic drain keeps condensate out of the valve stack.
Feeding the pick-and-place and sealing cylinders on a carton packaging line, the GFR30010ALC3TK cleans the air and regulates pressure at a 3/8 in connection, with the fitted reverse/check valve (code K) backing up the downstream circuit.
On a laboratory test bench running low-pressure pneumatic tests, this unit conditions the bench supply and its bar-scaled round gauge gives a direct local pressure readout, while the automatic drain handles moisture carried in from the shop air line.
Size 300 with a 3/8 in port sits mid-range in the GFR line; step up to 400 or 600, or down to 200, depending on the air your circuit needs - we can check the published flow curves against your demand before you order. This unit is already configured with an automatic drain (code A); the family also offers manual (M) and differential-pressure (blank) drains, and a 5 um element (code W) if finer filtration than the standard 40 um is required. The round gauge here is scaled in bar; embedded square gauges and MPa or psi scales are alternatives. The thread on this unit is NPT; PT is the standard and G (BSPP) is also an order option, and a mounting bracket is included. As the low-pressure type (L), it is intended for circuits requiring reduced set pressures; the exact adjustment range is not published, so confirm it with us. No single rated flow figure applies - flow is published as curves, so ask us to confirm sizing against the application before ordering.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes G-series flow as curves, not as a single rated figure, so we do not quote a number here. Send us your required flow and working pressure and we will confirm from the datasheet whether this size 300, 3/8 in unit suits your application.
In GFR30010ALC3TK: 300 is the size, 10 the 3/8 in port, A the automatic drain, L the low-pressure regulator type, C3 the external round gauge scaled in bar, T the NPT thread and K the fitted reverse/check valve. Alternatives such as manual or differential-pressure drains, a 5 um element (W) and other gauge scales are orderable in the same series.
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.