The AirTAC GFR600-25F1WT AirTAC Filter Regulator NPT1 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 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 GFR600-25F1WT 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, 5 um filtration (the finer W grade, against the 40 um standard), a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and an embedded square pressure gauge scaled in MPa. 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 the size 600 bowl is aluminium alloy, this unit suits duty where a polycarbonate bowl would not be the first choice.
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, and options including 40 um or 5 um filtration, manual, automatic or differential-pressure drains, square or external round gauges with MPa, psi or bar scales, a low-pressure regulator type, a reverse/check valve, G (BSPP) or NPT threads in place of the PT standard, and bracket or no-bracket mounting. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR600-25F1WT AirTAC Filter Regulator NPT1 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 | Differential-pressure drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, MPa 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. |
| 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. |
| (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 off a 1 in main header to feed a workshop section, this unit filters water and particulate from the plant supply and holds a set downstream pressure for everything connected to that branch.
Feeding the pneumatic clamps, tool-change cylinders and chip-conveyor actuators of a machining centre, the 5 um element protects valves and cylinders while the regulator holds a stable working pressure.
On a process skid where quarter-turn pneumatic actuators stroke large valves, the unit conditions the supply air and regulates it to the actuator and solenoid rating, with the MPa gauge giving a local set-point reading.
Work size and port against the flow your line needs: size 600 with a 1 in port is the largest step in the GFR range, so it belongs on main supply lines rather than point-of-use drops. Choose the drain to match attendance: differential-pressure (as decoded here) needs no timer or operator, automatic drains on a schedule, and manual drain suits supervised installations. Pick 5 um where downstream equipment tolerates less particulate, otherwise the 40 um standard costs less. Confirm the gauge scale (MPa, psi or bar) and whether you want the embedded square gauge or the external round gauge; this code carries the square gauge in MPa. Thread is NPT here - PT is the AirTAC standard and G (BSPP) is also an order option, so match your pipework. Bracket is included; a no-bracket (J) version exists. Flow is published as curves, not a single rating, so 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 GFR600 as curves, not as a single rated figure, so we do not quote a number here. Tell us your line pressure, set pressure and the flow your application needs, and we will confirm the figures from the datasheet before you order.
A differential-pressure drain releases collected condensate automatically when the airflow through the unit creates enough pressure difference, so it needs no operator or timer - a good default for continuously used lines. If you prefer a manual drain (which also widens the regulator adjustment range to 0.05-0.9 MPa) or a fully automatic drain, those are separate order codes in the same size.
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.