The AirTAC GFR600-25NT 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 differential-pressure 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 GFR600-25NT is a size-600 filter regulator: it removes water and particulate from compressed air and holds downstream pressure in one body. This configuration has a 1 in NPT port, the standard 40 um filter element, and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure drop across the element rises. Pressure is set anywhere in the 0.15-0.9 MPa (20-130 psi) range with the standard regulator, and no gauge is fitted on this variant. Because this is the 600 size, the bowl is aluminium alloy, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR line is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, in PT, G (BSPP) or NPT thread, with manual, automatic or differential-pressure drains, an optional 5 um element, gauge choices and a low-pressure regulator type. Flow figures are published as curves rather than a single rating, so ask us and we will confirm the datasheet numbers for your application.
| Model | GFR600-25NT 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 | 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 | Differential-pressure drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Not fitted |
| 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". |
| (blank) | Drain: Differential-pressure 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. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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. |
| (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" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Installed at the take-off from a factory compressed-air ring main, it cleans the supply and holds a steady header pressure for the downstream pneumatic circuits on that branch.
Feeding the air cylinders and grippers on a carton-sealing or case-packing conveyor, it keeps water and pipe scale out of the valves while holding the pressure the motion profile was set up with.
Mounted at the wall drop in a maintenance workshop, it conditions the air before impact wrenches, air ratchets and blow guns, protecting the tools and giving a stable working pressure at the bench.
Start from the port and size: the 600 frame with a 1 in NPT connection suits the largest branch lines in the GFR range, but always step the size against the air demand of the circuit rather than the pipe alone. Choose the drain to match the site: differential-pressure (as fitted here) needs no attention, automatic drains continuously, and manual drain suits dry, low-condensate installations. The standard element is 40 um; specify the W variant for 5 um where finer pre-filtration is needed. Gauge style and pressure scale are order options, as are G (BSPP) and NPT thread - PT is the catalogue standard - and a bracket can be ordered separately on other sizes. Flow is published as curves, not a single rated figure, so send us your demand 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 GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your line size and air demand and we will confirm the datasheet curve and check the sizing for your application before you order.
This N-code variant is supplied without a gauge, so you read the setting on your own downstream gauge while adjusting the regulator between 0.15 and 0.9 MPa (20-130 psi). A gauge is a catalogue option on GFR units, so if you prefer a fitted gauge, ask us for the equivalent GFR600 ordering code that includes one.
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.