The AirTAC GFR30015ALNTK AirTAC Filter Regulator NPT1/2 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 PT1/2" 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 GFR30015ALNTK is an AirTAC GFR series filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This size 300 unit is ported NPT1/2, carries the 40 um standard filter element, and has an automatic drain that expels collected condensate without anyone opening the bowl. It is the low-pressure regulator type and includes a built-in reverse (check) valve. No gauge is fitted (code N), and the bowl is polycarbonate (PC), the standard material for this size.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, a choice of manual, automatic or differential-pressure drains, 40 um or 5 um (W) filtration, standard or low-pressure regulation, gauge options and G/NPT thread variants. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR30015ALNTK AirTAC Filter Regulator NPT1/2 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (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 | Not fitted |
| 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. |
|---|---|
| 15 | Port size PT1/2". 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. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeds clean, regulated air to cylinder-driven clamps and fixtures on an assembly line, with the automatic drain keeping condensate out of the valves between shifts.
Supplies filtered, pressure-controlled air to grippers and diverters on a carton conveyor, with the check valve holding the circuit against backflow.
Conditions air ahead of spray guns where a lower regulated pressure is wanted, removing water and particulate that would otherwise spoil the finish.
Size 300 with a 1/2 in NPT port is the mid step of the GFR range: step up or down a size when your pipe and air demand call for a different port. The drain choice is the main service decision: automatic here means no routine draining, while manual and differential-pressure versions are available in the family. Filtration is the 40 um standard element; specify code W if you need the 5 um grade. This unit is the low-pressure regulator type and carries no gauge - gauge and scale options exist elsewhere in the family if you want one. Thread is NPT on this model; PT is the standard thread and G (BSPP) is also an order option, and a mounting bracket is included. Because flow is published as curves rather than one rated number, send us your demand and we will confirm sizing against the datasheet before you order.
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 flow for this series as curves, not as a single rated figure, so we do not quote one. Tell us your air demand and line conditions and we will confirm the sizing from the datasheet on request before you order.
It is the low-pressure regulator variant of the GFR300. The exact adjustment range for this variant is not published on the sheet we work from, so confirm it with us on request. Maximum inlet pressure is still 1.0 MPa (145 psi), operating temperature is -5 to 70 C, and the unit also carries an automatic drain, 40 um element, check valve and no gauge.
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.