The AirTAC GFR600-25T AirTAC Filter Regulator NPT1 5 um Square Gauge 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 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 GFR600-25T is a filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This 600-size unit is fitted with a 1 in NPT port, a 5 um filter element (the finer of the two published grades), a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and an embedded square gauge scaled in psi so the set pressure is readable at the point of use. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and maximum inlet pressure is 1.0 MPa (145 psi). Because this is the 600 size, the bowl is aluminium alloy, and the unit operates from -5 to 70 C in non-freezing conditions.
This is a genuine AirTAC part. The GFR family is published in 200, 300, 400 and 600 sizes with port options from 1/8 in to 1 in, a choice of 40 um or 5 um filtration, differential-pressure, automatic or manual drains, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow for this family is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures against your application before ordering.
| Model | GFR600-25T AirTAC Filter Regulator NPT1 5 um Square Gauge |
|---|---|
| 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 | Differential-pressure drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, 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". |
| (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. |
| (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. |
| 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) |
Dropping a 1 in compressed-air main to a controlled working pressure for a production hall, with the 5 um element stripping water and pipe-scale before the air reaches downstream valves and actuators.
Feeding a conveyor or packaging line's air cylinders from a main header, where the square psi gauge lets the line technician set and verify the pressure the cylinders were designed for.
Supplying a fixed station for large impact wrenches, clamps or press fixtures, where the aluminium-alloy 600-size bowl and differential-pressure drain keep condensate out of the tools without daily manual draining.
Start with the port and size step: the 600 frame with its 1 in NPT connection is the largest in the GFR range, so match it to the line size and the flow your circuit actually needs. Choose the filter grade deliberately - the 5 um element on this unit suits circuits that want finer particulate removal than the 40 um standard - and pick the drain type: differential-pressure (fitted here) drains with flow, automatic drains on a timer-free basis, and manual drains suit intermittently used lines. Gauge scale (MPa, psi or bar), thread family (PT standard, G or NPT to order) and the mounting bracket are the remaining decodable choices. Flow is published as curves, not a single rating, so ask us to confirm sizing against the application 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 family as curves, not as a single rated number, so we do not quote a figure here. Tell us your line pressure, set pressure and required air consumption, and we will confirm the flow from the datasheet curves for this exact 1 in NPT configuration before you order.
The W in the code GFR60025F2WT selects the 5 um filter grade - the finer option over the 40 um standard - for circuits that need cleaner air. The blank drain position selects the differential-pressure drain, which discharges collected condensate automatically as air flows through, with no drain fitting to operate by hand.
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.