The AirTAC GFR600-25 AirTAC Filter Regulator NPT1 in, 40 um 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 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 GFR600-25 is a size-600 filter regulator: it removes water and particulate from compressed air and holds a steady downstream pressure in a single body. This configuration is fitted with a 1 in NPT port, the standard 40 um filter element, a differential-pressure drain that bleeds collected condensate automatically whenever the pressure drop across the element rises, and an embedded square pressure gauge scaled in MPa. A reverse/check valve is fitted, and the unit is supplied without a mounting bracket. The size-600 bowl is aluminium alloy, and the maximum inlet pressure is 1.0 MPa (145 psi) with a working temperature range of -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, PT, G and NPT threads, manual, automatic or differential-pressure drains, a 5 um (W) filter element option, and gauge scale choices. Rated flow for this series is published as curves rather than a single figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR600-25 AirTAC Filter Regulator NPT1 in, 40 um |
|---|---|
| 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 | Differential-pressure drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, MPa 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". |
| (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. |
| J | Supplied without bracket. |
| (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. |
| (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) |
Installed at the take-off from a compressor room header to condition and regulate the air feeding an entire production floor, where a 1 in line serves multiple downstream circuits.
Feeding filtered, regulated air to the pneumatic clamps, tool-change cylinders and chip-clearing blasts on a machining centre fed by a high-capacity shop air main.
Conditioning the air that drives case-erectors, baggers and palletiser cylinders on a packaging line running large-bore actuators from a 1 in distribution leg.
Size 600 with a 1 in port is the largest step in the GFR range, so start there when the line's required flow is high and step down to 400, 300 or 200 where it is not. The regulation range of this standard-type unit is 0.15-0.9 MPa (20-130 psi). Drain choice matters: the differential-pressure drain fitted here needs no operator attention, while automatic (A) and manual (M) versions are orderable. The 40 um element suits general plant air; specify the W code for 5 um where downstream equipment needs finer filtration. The square gauge is fitted and scaled in MPa; psi or bar scales and an external round gauge are options. This unit is supplied without a bracket (J), and the T code gives NPT threads where PT is the standard and G is also orderable.
One honest note on sizing: AirTAC publishes GFR flow as curves, not a single rated number, so send us your flow and pressure conditions and we will confirm the correct size against the datasheet before you order.
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 GFR series as performance curves rather than a single rated figure, so no single number can be quoted here. Tell us your line pressure, set pressure and expected air demand, and we will confirm the flow and the correct sizing against the datasheet on request before you order.
This configuration has no drain code, which means the differential-pressure drain: it discharges collected condensate automatically whenever the pressure drop across the 40 um element rises to a set level, with no operator input. If your maintenance routine prefers it, automatic (A) or manual (M) drain versions of the same size are orderable.
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.