The AirTAC GFR600-25 AirTAC Filter Regulator 1 in NPT, 5 um, Auto Drain 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 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 GFR600-25 is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built on the 600 size frame with a 1 in NPT port, a 5 um filter element (code W), an automatic drain, and the low-pressure regulator type (code L). A reverse/check valve is fitted, and this unit comes without a gauge and without a mounting bracket. As with all 600-size units, the bowl is aluminium alloy.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with a choice of ports, drain types (differential-pressure, automatic or manual), 40 um or 5 um elements, gauge options, PT, G or NPT threads, and standard or low-pressure regulator types. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures on request.
| Model | GFR600-25 AirTAC Filter Regulator 1 in NPT, 5 um, Auto Drain |
|---|---|
| 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 | 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 | Automatic drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Not fitted |
| 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. 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". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 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. |
| 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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
On a bottling or filling line, large pneumatic cylinders drive fill heads, capping heads and reject gates. This filter regulator sits at the line's main air drop, delivering clean, moisture-controlled air at a set pressure, while the automatic drain clears collected condensate from the aluminium bowl without operator attention.
A press or forming machine's clamping and ejection cylinders need air that is free of water and swarf and held at a stable, moderate pressure. Installed at the machine's inlet, this unit filters to 5 um and regulates the supply in one body, and the built-in reverse/check valve holds the setting if the upstream supply is interrupted.
Sorting and conveyor systems use air-powered diverters, stoppers and gate cylinders that cycle constantly through a shift. This unit conditions the supply at the conveyor's air take-off, protecting the cylinders from water and fine particulate and keeping their operating pressure regulated at a low set point suited to the low-pressure type.
Size and port set the air capacity: the 600 frame with a 1 in NPT port is the largest step in the GFR range, so match it to your line's air demand rather than to the pipe size alone. The real, decodable choices for this family are drain type (automatic here; manual or differential-pressure also available), filter grade (5 um here versus the 40 um standard), gauge and scale (none fitted on this unit; round or square gauges with MPa, psi or bar scales exist in the family), thread (PT is the standard; G and NPT are order options, NPT on this unit), and bracket (not fitted here). The L code makes this the low-pressure regulator type; its exact adjustment range is not published. Because flow is published as curves, not 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes GFR flow as curves, not as a single rated figure, so we do not quote a number here. Tell us your application and required air demand, and we will confirm the flow and sizing data from the datasheet on request before you order.
The A code in GFR60025ALJNWTK selects the automatic drain: condensate that collects in the aluminium bowl is discharged without manual intervention, which suits unattended lines. Manual and differential-pressure drain versions are available in the same GFR family if you prefer a different arrangement.
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.