The AirTAC GFR600-25ALJF2TK AirTAC Filter Regulator 1 in NPT 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" 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 GFR600-25ALJF2TK is a size-600 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is built for a 1 in NPT line, with an automatic drain that discharges collected condensate without manual attention, a 40 um standard filter element, the low-pressure regulator type for lower set-pressure duties, an embedded square gauge reading in psi, and a reverse/check valve fitted. The aluminium alloy bowl suits the largest GFR frame, and no mounting bracket is included.
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, manual or automatic or differential-pressure drains, a 40 um standard or 5 um (W) element, and a choice of gauge scale. Flow is published as curves rather than a single rating, so we confirm the datasheet and sizing figures on request.
| Model | GFR600-25ALJF2TK AirTAC Filter Regulator 1 in NPT |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (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 | Aluminium alloy |
| Pressure gauge | Fitted — square, psi 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 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 | GFR600 · PT1" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Filtering and regulating the 1 in main air drop feeding a palletiser's large cylinders, with the automatic drain clearing condensate from a high-volume line without daily manual draining.
Supplying filtered, regulated air to a bank of large pneumatic ball or butterfly valve actuators on a process line, where the low-pressure type holds a modest set pressure for smooth actuator seating.
Conditioning the air to conveyor gate, stopper and diverter cylinders on a bottling or carton line, protecting the actuators from water and scale while keeping supply pressure steady.
Step up through the GFR sizes (200/300/400/600) and port codes (1/8 in to 1 in) to match the pipe and the air demand of the line; this unit sits at the top of the range on a 1 in NPT connection. Choose the drain to suit access: automatic here, or manual or differential-pressure elsewhere in the family. Pick the 40 um standard element for general protection or the 5 um (W) grade where finer filtration is needed, and set the gauge scale to MPa, psi or bar. Thread is PT as standard with G and NPT as order options, and a bracket can be ordered where the family carries one.
Because flow is published as curves rather than a single rated figure, send us your line conditions and we will confirm sizing against the datasheet before you order. The low-pressure type's exact regulation range is likewise confirmed on request.
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 GFR series as curves, not as a single rated number, so we do not quote a figure. Send us your line pressure and air demand and we will confirm the sizing against the datasheet on request.
The A in the code fits an automatic drain, so condensate is discharged without someone opening a manual drain - useful on a large, often unattended 1 in line. The L code marks the low-pressure regulator type, intended for lower set pressures; its exact range is not published in our sheet, so we confirm it 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.