The AirTAC GFR600-25 NPT1 AirTAC Filter Regulator, 1 in, 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: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 600 unit is specified with a 1 in NPT port, an automatic drain that expels collected condensate without manual attention, a fine 5 um filtration element (code W), and the embedded square gauge with MPa scale so the set pressure is visible at a glance. A reverse/check valve is fitted, and the standard regulator type covers the 0.15-0.9 MPa (20-130 psi) adjustment range. Because it is size 600, the bowl is aluminium alloy.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes 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 standard or 5 um filtration, gauge and scale choices, and an optional reverse/check valve. Flow is published as curves rather than a single rating, so we confirm the datasheet figures for your application on request.
| Model | GFR600-25 NPT1 AirTAC Filter Regulator, 1 in, 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 — square, 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. 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. 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) |
Feeds clean, regulated air to the tool-change and clamping circuits of a machining centre, with the 5 um element protecting spool valves and the automatic drain handling condensate on a continuously running compressor main.
Conditions the air feeding spray guns and air-assisted applicators in a paint booth, where the fine 5 um grade helps keep water and particulate out of the finish and the gauge lets the operator hold the set pressure.
Supplies regulated air to the pneumatic cylinders and grippers on a filling or cartoning conveyor, with the reverse/check valve helping hold the downstream circuit and the automatic drain suiting a line that runs across shifts.
Size 600 with a 1 in port is the largest step in the GFR range, so start there when the line volume demands the biggest ports, then verify against the flow curve for your actual pressure and line length. This unit carries the automatic drain, which suits unattended or hard-to-reach installations; choose manual drain where you want controlled discharge, or the differential-pressure default where drain timing should follow the pressure drop. The 5 um element (code W) is the finer of the two published grades (40 um is standard), so pick W where downstream equipment is sensitive to finer particles. The square gauge is fitted here with the MPa scale; psi or bar scales and an external round gauge are alternatives. The trailing T in the code fixes the thread as NPT; PT is the catalogue standard and G (BSPP) is the other option. No mounting bracket is included with this configuration (code J).
Because flow is published as curves and not as a single rated figure, 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, not as a single rated figure, so we do not quote a rated flow number. Send us your line pressure and the air demand of your equipment and we will confirm the sizing from the datasheet curves on request before you order.
The A in the code GFR60025AJF1WTK specifies the automatic drain, which discharges collected condensate on its own, suiting installations that run unattended or are awkward to reach. The GFR family is also available with a manual drain or with the differential-pressure drain as the default, and the regulator adjustment range differs by drain type: 0.15-0.9 MPa (20-130 psi) for automatic and differential-pressure drain, 0.05-0.9 MPa (7-130 psi) for manual drain.
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.