The AirTAC GFR60025ALF2GK AirTAC G1 Filter Regulator, 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 GFR60025ALF2GK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This size 600 unit carries a G1 (1 in) G-thread port for high-capacity lines, an automatic drain that expels collected condensate without manual attention, a 40 um standard filter element, and a low-pressure regulator type. An embedded square gauge with a psi scale is fitted, and a reverse/check valve is included to hold downstream pressure when the supply drops.
This is a genuine AirTAC part from the GFR range, which spans sizes 200 to 600 with port options from 1/8 in to 1 in, G or NPT thread variants, manual or automatic drainage, a 5 um element option, and gauge choices. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR60025ALF2GK AirTAC G1 Filter Regulator, 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 — 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. |
| (blank) | Mounting bracket included. |
| (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. |
| 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) |
A stamping or forming press fed from a plant air main uses the 1 in port to supply high-volume air, with the low-pressure regulator holding a gentle working pressure for clamping circuits and the automatic drain clearing condensate between shifts.
A washdown-prone bottling hall runs conveyor diverters and stopper cylinders off this unit: the 40 um element keeps scale and pipe rust out of the valves, the automatic drain copes with humid compressor air, and the psi gauge lets line staff verify setpoints at a glance.
A water-treatment or chemical plant uses this filter regulator to feed positioners and pilot solenoids on large automated valves, where the reverse/check valve maintains pilot pressure through brief supply dips and the low-pressure type matches modest control-air setpoints.
Size 600 with a G1 (1 in) port is the largest step in the GFR range; step down to 200/300/400 if your line flow is modest, since port size should follow the air demand of the circuit. The automatic drain suits unattended or hard-to-reach installations; manual and differential-pressure drains are available on other variants. The 40 um element is the standard grade - choose the 5 um (W) option only where finer particulate removal is needed. The fitted square gauge reads in psi; MPa and bar scales and an external round gauge are alternatives. This is the low-pressure type, so confirm the exact regulation range against your setpoint before ordering. G thread is the specification here; PT and NPT versions can be ordered. Bracket mounting is included. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing before you order.
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 rated flow number. Tell us your line demand and operating pressure and we will confirm the flow from the datasheet on request before you order.
The A in the code means an automatic drain, which expels collected condensate by itself - useful where the unit is mounted in a hard-to-reach spot or the system runs unattended. Manual and differential-pressure drain variants exist in the GFR range and can be ordered if you prefer a different drainage arrangement.
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.