The AirTAC GFR600-25 AirTAC Filter Regulator 1 in NPT, 5 um 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 GFR600-25 is a filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This size-600 unit is the largest in the GFR range, with a 1 in NPT port for main-line or heavy-machine supply. It carries a 5 um filter element (the finer of the two catalogue grades), an automatic drain that expels collected condensate without manual attention, and a round pressure gauge reading in psi. Maximum inlet pressure is 1.0 MPa (145 psi) and the standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi). Operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR600 series is offered in 1 in ports with PT as the standard thread and G or NPT as order options, with automatic, manual or differential-pressure drains, 40 um or 5 um elements, and gauge choices by style and scale. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR600-25 AirTAC Filter Regulator 1 in NPT, 5 um |
|---|---|
| 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 | Standard 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 | Not fitted |
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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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)). |
| (blank) | Standard 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. |
| 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. |
| (blank) | No reverse-flow valve (the default). |
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 1 in drop from a plant air receiver, the GFR600-25 cleans the full workshop supply and holds a set header pressure, with the automatic drain clearing condensate without daily attention.
Feeding a big air-operated press or clamp circuit, this unit filters incoming air to 5 um and regulates feed pressure to the valve stack, with the psi gauge giving the operator a direct line readout.
Mounted on the supply to a long conveyor drive-and-clamp manifold, it removes water and fine particulate before directional valves and cylinders, and keeps manifold pressure stable through shift-long cycling.
Choose GFR600-25 when your line runs at 1 in NPT and you want filtration and regulation in a single body rather than two separate units. The 5 um element suits downstream equipment that needs finer particulate capture than the standard 40 um grade; the automatic drain suits unattended or hard-to-reach installations where nobody will bleed the bowl by hand. The round psi gauge is fitted as coded; embedded square gauges and MPa or bar scales are available elsewhere in the range. The aluminium alloy bowl is specific to size 600. A mounting bracket is included, and the standard regulator adjusts 0.15-0.9 MPa (20-130 psi).
Flow through a filter regulator depends on inlet pressure, set pressure and allowable pressure drop, and AirTAC publishes it as curves rather than a single rated figure. Send us your line conditions and we will confirm sizing against the datasheet before you order.
Quick checklist
The aluminium-alloy bowl on the GFR600 suits harsher environments than a PC bowl. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR600 series as performance curves, not as a single rated number, so we do not quote a figure here. Flow depends on your inlet pressure, set pressure and acceptable pressure drop. Send us those conditions and we will confirm the datasheet figures and check the sizing for your application before you order.
The A in the code GFR60025AC2WT specifies an automatic drain, which expels collected condensate from the bowl on its own - useful where the unit is mounted high or visited infrequently. The GFR600 series is also available with a manual drain or the differential-pressure default, and with the 40 um standard element instead of the 5 um grade fitted here. Note the regulation range differs by drain type: automatic and differential-pressure drains cover 0.15-0.9 MPa (20-130 psi), while the manual-drain variant covers 0.05-0.9 MPa (7-130 psi).
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.