The AirTAC GFR600-25ALC2GK AirTAC Filter Regulator G1 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" 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 GFR600-25ALC2GK is a filter regulator: one body that removes water and particulate from compressed air and then regulates downstream pressure. This size 600 unit has a G1 (1 in) G-thread port, an automatic drain that expels collected condensate without manual attention, and a 40 um standard filter element. The regulator is the low-pressure (L) type, a round psi gauge is fitted, and code K adds a reverse/check valve. Maximum inlet pressure is 1.0 MPa (145 psi), operating temperature is -5 to 70 C (non-freezing), and the mounting bracket is included.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, a choice of automatic, manual or differential-pressure drains, 40 um or 5 um (W) filtration, gauge and thread options, and PT as the standard thread with G and NPT as order options. On this size 600 unit the bowl is aluminium alloy. Flow is published as curves rather than a single rating, so ask us to confirm flow and datasheet figures for your application on request.
| Model | GFR600-25ALC2GK AirTAC Filter Regulator G1 Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (G (BSPP) 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 — round, 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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. |
| G | G (BSPP) 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) |
Conditioning the supply to spray-gun lines in an automotive or furniture finishing booth, where clean, moisture-free air held at a steady set pressure keeps coating work consistent through a shift.
Regulating the air feed to conveyor-mounted pneumatic clamps, pushers and stopper cylinders on a bottling or cartoning line, with the automatic drain clearing condensate without operator attention.
Point-of-use filtration and regulation for a machining centre's pneumatic tool-changer and work-clamping circuits, with the fitted reverse/check valve holding the downstream side if supply dips.
Decode the choices from the code: the size step (200/300/400/600) sets the port and the flow band, so step up when your line needs more air - here size 600 gives a G1 (1 in) G-thread port. Drain options are differential-pressure (default), automatic (A, as fitted here) or manual (M). Filter grade is 40 um standard or 5 um with code W. Gauge choices are the embedded square gauge or an external round gauge with MPa, psi or bar scale - this unit carries a round psi gauge. Thread is PT as standard with G and NPT as order options; the bracket is included, and K fits a reverse/check valve. Flow is published as curves, not a single rating, so 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 flow for the GFR series as curves rather than a single rated figure, so we do not quote a number here. Send us your line pressure and air demand and we will confirm the flow and datasheet figures for this exact unit on request.
Code A fits the automatic drain, which ejects collected condensate from the aluminium alloy bowl without anyone opening it - useful on unattended compressors or remote drops. The GFR family also offers manual (M) and differential-pressure (default) drains if you prefer a different service style.
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.