The AirTAC GFR30015ALC1TK 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 AirTAC GFR30015ALC1TK is a size 300 filter regulator: it removes water and particulate from compressed air and holds a reduced, stable downstream pressure in one body. This configuration carries a 1/2 in NPT port, an automatic drain that clears collected condensate from the polycarbonate bowl without manual attention, a 40 um standard filter element, and the low-pressure regulator type for applications set below the standard range. It is fitted with an external round pressure gauge scaled in MPa, a reverse/check valve, and a mounting bracket.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of automatic, manual or differential-pressure drains, 40 um or 5 um (W) filtration, gauge styles and scales, and G/NPT thread options. Max 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 sizing and the low-pressure regulation range against your application before ordering.
| Model | GFR30015ALC1TK 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 | Fitted — round, MPa 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. |
|---|---|
| 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. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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. |
| 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) |
Feeding clamp cylinders on a fixture press with air that is free of condensed water and held at a reduced, steady pressure so parts seat consistently cycle after cycle.
Conditioning the air to carton-sealing and case-turning cylinders on a packaging conveyor, with the automatic drain handling condensate on a line that runs unattended.
Dropping conditioned, regulated air off a workshop main to a low-pressure process cell, with the check valve holding the downstream circuit if the main supply dips.
Size 300 with a 1/2 in port sits in the middle of the GFR range; step up to 400/600 or down to 200 depending on the flow your line needs. Choose the automatic drain (this unit) where the bowl cannot be checked daily, manual where an operator attends the machine, or differential-pressure as the default. The 40 um element is standard; specify 5 um (code W) only where downstream equipment demands finer filtration. This is the low-pressure (L) regulator type, so confirm the set pressure you need with us - the exact range for this variant is not published. The round gauge on this unit reads in MPa; square embedded gauges and psi/bar scales are alternatives. Thread here is NPT; PT is the catalogue standard and G (BSPP) is also available. A bracket is included.
Because published flow data takes the form of curves rather than one rated figure, send us your application details and we will confirm sizing from 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 rather than a single rated figure, so there is no one number we can quote honestly. Tell us your inlet pressure, set pressure and the equipment you are supplying, and we will confirm the sizing from the datasheet before you order.
The L code marks the low-pressure regulator variant, intended for set points below the standard range; the exact regulation range for this variant is not published, so confirm your set pressure with us. The A code is the automatic drain: a float mechanism ejects collected condensate from the polycarbonate bowl without daily manual draining.
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.