The AirTAC AirTAC GFR600-25T Filter Regulator 1 in NPT Auto Drain 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 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 GFR600-25T is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This 600-size unit is fitted with a 1 in NPT port, an automatic drain that ejects collected condensate without manual attention, a 40 um standard filter element, and an aluminium alloy bowl - size 600 bowls are aluminium alloy rather than polycarbonate. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and max working (inlet) pressure is 1.0 MPa (145 psi). A round external gauge scaled in bar is included for setpoint monitoring, a reverse/check valve is fitted to hold downstream pressure, and the unit is supplied without a mounting bracket. Operating temperature is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR filter-regulator line spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options include manual or differential-pressure drains, a 5 um (W) filter element, embedded square or external round gauges with MPa, psi or bar scales, G or NPT thread variants, a bracket, and a low-pressure regulator type. Flow is published as curves rather than a single rated figure, so we confirm flow and datasheet figures on request before you order.
| Model | AirTAC GFR600-25T Filter Regulator 1 in NPT Auto Drain |
|---|---|
| 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 | Automatic drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — round, bar 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 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. |
| 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" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Feeding spray booths and air-driven applicators on an automotive paint line: the 40 um element strips water and pipe scale before the air reaches the guns, and the regulator holds a steady setpoint so finish quality does not drift with header-pressure swings.
A conditioning point ahead of the valve manifold on a bottling or packaging line: the automatic drain handles condensate continuously in a wet plant-air environment, and the check valve keeps the downstream circuit pressurised if the main supply dips.
Conditioning the air feeding conveyor diverters, stoppers and clamping cylinders in a distribution centre: the 1 in NPT connection matches the main drop leg, and the bar-scaled gauge lets technicians verify the regulated setpoint during line checks.
Start with size and port: the 600 frame with its 1 in NPT connection suits lines where larger piping and higher air demand are expected, but the right step is confirmed against required flow - AirTAC publishes flow as curves, not a single rating, so ask us to check sizing against your application before ordering. This unit ships as decoded with an automatic drain; manual and differential-pressure drain variants exist if your maintenance routine prefers them. The 40 um element is the standard grade; a 5 um (W) element is available where finer filtration is needed. The fitted round gauge is scaled in bar; square embedded gauges and MPa or psi scales are the other catalogue choices. Thread is NPT here; PT is the standard thread and G (BSPP) is also an order option. A mounting bracket can be ordered if you want panel or wall fixing - this configuration comes without one.
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 GFR600 series as curves, not as a single rated figure, so we do not quote a number. Tell us your working pressure and air demand and we will confirm the flow from the datasheet on request before you order.
This unit has an automatic drain (code A): collected condensate is discharged without operator attention, which suits unattended or high-humidity installations. Manual-drain versions require periodic bleeding and carry a wider 0.05-0.9 MPa (7-130 psi) regulation range, while the default differential-pressure drain also gives 0.15-0.9 MPa (20-130 psi). All three are catalogue options on the GFR600.
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.