The AirTAC GFR60025ALJC1WTK 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 AirTAC GFR600 series combines water and particulate filtration with pressure regulation in a single body, so one component cleans the air and holds your downstream pressure at the set point. This configuration is the size 600 unit with a 1 in NPT port, the largest port step in the G-series, suited to high-consumption supply lines. It carries the W filter grade (5 um element instead of the standard 40 um), an automatic drain that expels collected condensate without manual attention, the low-pressure regulator type, a fitted external round gauge scaled in MPa, and a built-in reverse (check) valve. The aluminium alloy bowl is standard at size 600, and this unit is ordered without 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, PT as the standard thread and G or NPT as order options, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, gauge scale in MPa, psi or bar, and standard or low-pressure regulation. Flow figures for this series are published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR60025ALJC1WTK 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 — 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.
| 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. |
| J | Supplied without bracket. |
| (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. |
| 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) |
Installed at the take-off from a large compressed-air ring main, the 1 in NPT port matches the main line diameter, the 5 um element protects downstream valves and cylinders from fine particles, and the automatic drain keeps condensate out of the distribution network without daily attention.
Feeding the air cylinders and actuated gates along a bottling conveyor, the low-pressure regulator holds a gentle set point for delicate handling, the check valve maintains pressure through supply dips, and the MPa gauge gives operators a clear local reading.
On instrument-grade automation where fine particulates and water carryover cause faults, the 5 um filtration and automatic drain deliver cleaner, drier air, while the low-pressure regulation and fitted gauge keep the supply stable at the low settings such rigs require.
Size and port are the first decision: the 600 body with its 1 in NPT port is the step to take when the line diameter and air demand are at the top of the G-series range. Because flow for this series is published as curves rather than a single rated figure, ask us to confirm sizing against your application before ordering. The remaining choices are all decodable from the code: the W grade gives 5 um filtration where the standard element is 40 um, so pick 5 um when downstream equipment needs finer particle removal; the automatic drain handles condensate discharge on its own, which suits unattended or elevated installations where a manual or differential-pressure drain would be impractical; the low-pressure regulator type is the right choice when your set point sits below the standard regulator's range. The round gauge is scaled in MPa, with psi and bar scales available as alternatives, and the fitted check valve holds downstream pressure if the upstream supply drops. Thread is NPT here, with PT standard and G available to order, and this unit is supplied without a bracket.
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 flow for the GFR600 series as curves, not as a single rated figure, so we do not quote a flow number for this unit. Send us your line size, working pressure and expected air consumption, and we will confirm the sizing against the datasheet curves on request before you order.
The A in the code specifies an automatic drain, which discharges collected condensate from the aluminium bowl by itself instead of waiting for a manual or differential-pressure action - useful where the unit is mounted in a hard-to-reach spot. The K specifies a built-in reverse (check) valve that helps hold downstream pressure if the upstream supply drops. The L specifies the low-pressure regulator type, selected when the working set point is below the standard regulator's range; its exact adjustment range is not published, so confirm it with us on request.
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.