The AirTAC GFR600-25T AirTAC Filter Regulator 1 in NPT, 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 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 series combines water and particulate filtration with pressure regulation in a single body, sized for 1 in (NPT) pipework. This configuration is the size-600 unit with a 5 um filter element (code W) for finer cleaning than the standard 40 um grade, a manual drain for the aluminium alloy bowl, a low-pressure regulator type, an embedded square gauge scaled in MPa, and a built-in reverse/check valve that holds downstream pressure when the upstream supply is lost. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
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, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um filtration, standard or low-pressure regulation, square or optional external round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR600-25T AirTAC Filter Regulator 1 in NPT, 5 um |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual 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. 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure 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. |
| 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) |
Filtering and regulating the main 1 in air drop feeding cylinder-driven case packers and carton sealers, with the check valve holding the circuit while upstream pressure recovers.
Conditioning supply to clamp and fixture actuators on CNC machining centres, where the 5 um element helps protect tight-tolerance valves and the gauge gives a clear setpoint reading.
Supplying filtered, regulated air to diverter arms, stoppers and lifters on distribution conveyors, with manual drain suited to shifts that include a routine maintenance walk.
Start with the size and port: this is the largest GFR frame, size 600, with a 1 in NPT port, chosen when the line's required air delivery points to the top of the range. Choose the drain to suit attendance: manual drain (as here) needs someone to open it periodically, automatic drain handles condensate unattended, and differential-pressure drain is the default. Pick the filter grade by sensitivity of the downstream equipment: 40 um is standard, 5 um (this unit, code W) suits finer components. Decide the gauge scale (MPa, psi or bar) and whether the embedded square gauge is enough or you want the optional external round gauge. Thread is NPT here; PT is the standard and G/NPT are catalogue options to order. A mounting bracket is included with this unit.
One honest note on sizing: AirTAC publishes flow for this family as curves, not a single rated number, and the exact regulation range of the low-pressure type is not stated in the material we hold. Send us your line pressure, required downstream pressure and air demand, and we will confirm the datasheet figures and fit 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 curves rather than a single rated figure, so we do not quote a number here. Tell us your line pressure, target downstream pressure and air demand, and we will confirm the datasheet flow curves and check the sizing for your application on request.
The M in the code selects a manual drain: someone opens the bowl drain periodically instead of relying on the default differential-pressure or an automatic drain, which suits lines with a regular maintenance routine. The W selects the 5 um filter element instead of the standard 40 um grade, for finer protection of downstream components. Both are standard 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.