The AirTAC GFR60025ALF1WTK AirTAC Filter Regulator NPT1 Low-Pressure is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1" 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 GFR60025ALF1WTK is an AirTAC GFR-series filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single body. This size-600 unit carries a 1 in NPT port, a 5 um filter element (code W), an automatic drain that expels collected condensate without manual attention, and a low-pressure regulator type. The aluminium alloy bowl suits the large 600 frame, and the unit comes with the embedded square pressure gauge reading in MPa, a reverse/check valve fitted, and a mounting bracket included.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, filter grades of 40 um standard or 5 um optional, a choice of drain types, gauge styles and scales, and PT, G or NPT threads. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR60025ALF1WTK AirTAC Filter Regulator NPT1 Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT thread) |
| Filtering grade | 5 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 | Aluminium alloy |
| Pressure gauge | Fitted — square, 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.
| GFR600 | G-series filter regulator, 600 body — sets the port range. |
|---|---|
| 25 | Port size PT1". This body offers 20 = PT3/4", 25 = PT1". |
| 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. |
| W | Filtering grade 5 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 | GFR600 · PT1" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Clean, regulated air feeding a bank of 1 in piloted directional valves on a heavy-duty press or forming line, with the 5 um element protecting valve spools and the check valve holding settings if supply dips.
Conditioning the main air drop for a bottling hall's actuator network: the automatic drain handles condensate around the clock and the low-pressure regulator type suits circuits that run below standard line pressure.
Supplying filtered, regulated air to cylinder-driven diverters, gates and belt tensioners in a warehouse handling system, with the included bracket mounting the unit at the line's air drop.
Step up through the size ladder (200, 300, 400, 600) and its matching port until the pipe and expected air demand are covered; size 600 with a 1 in port is the largest step in the family. Choose the drain to match the installation: automatic drain (as here) for unattended duty, manual drain where an operator is on hand, or the differential-pressure default. Select the 5 um element (W) when downstream equipment needs finer filtration than the 40 um standard, and pick the gauge scale - MPa, psi or bar - to suit the crew reading it. Thread is PT as the catalogue standard, with G and NPT as order options; this unit is ordered with NPT. A reverse/check valve is fitted on this code, and the mounting bracket is included. Because flow is published as curves and not as a single rated figure, ask us to confirm sizing against your application before ordering.
Quick checklist
The aluminium-alloy bowl on the GFR600 suits harsher environments than a PC bowl. 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 number, so we do not quote a l/min or SCFM figure here. Send us your application details and we will confirm the flow curve and correct sizing from the datasheet on request.
The W in the code selects the 5 um filter grade instead of the 40 um standard, for finer protection of downstream equipment. The A selects an automatic drain, which expels collected condensate on its own instead of relying on the differential-pressure default or 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.