The AirTAC GFR600-25T AirTAC Filter Regulator NPT 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR600-25T is a size-600 filter regulator: a single body that removes water and particulate from compressed air and then regulates downstream pressure. This configuration carries a 5 um filter element (the finer of the two published grades), a manual drain bowl, and the low-pressure regulator type. It is built for a 1 in NPT port, so it suits the main air line of a large installation rather than a point-of-use drop. Maximum working (inlet) pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing). No gauge is fitted and no mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with a choice of ports, PT, G or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um elements, gauge options and standard or low-pressure regulation. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR600-25T AirTAC Filter Regulator NPT 1 in, 5 um |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual 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. 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| 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. |
| 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) |
Conditioning and regulating the main air feed to clamps, tool-change cylinders and chip-clearing jets on a machining centre, with the 5 um element protecting precision pneumatic components from water and fine particulate.
Filtering and regulating the air feeding air-knife nozzles that dry bottles on a packaging conveyor, where the low-pressure regulator type and 1 in port suit a high-volume, modest-pressure drying circuit.
Supplying cleaned, regulated air to spinning and weaving machines that use air jets for threading and clearing, where the 5 um grade helps keep jet orifices free of water and debris.
Step up to size 600 when your line flow and the 1 in port demand it; smaller GFR sizes (200/300/400) cover lighter duties with smaller ports. The 5 um element here is the finer published grade - choose it when downstream valves, cylinders or instruments need cleaner air than the 40 um standard element delivers; the 40 um grade is the default if coarse protection is enough. The manual drain means an operator opens the bowl drain during checks; if you cannot guarantee that routine, the automatic or differential-pressure drain options remove the task. This is the low-pressure regulator type - its exact adjustment range is not published, so confirm it against your set pressure with us before ordering. No gauge is fitted; gauge options exist in the family if you want local pressure indication. The T suffix gives NPT threads; PT is the standard thread and G (BSPP) is also a catalogue option. No bracket is included with this code. Because flow is published as curves rather than a single rating, 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. 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. Tell us your application and line conditions and we will confirm the flow data from the datasheet on request before you order.
The M code in GFR600-25MLJNWT specifies a manual drain: collected water must be drained by opening the bowl drain during routine checks. If nobody can be assigned to that task, the differential-pressure (default) or automatic drain options in the same family drain the bowl without operator action.
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.