The AirTAC GFR600-25MLJF3WTK AirTAC Filter Regulator NPT 1 in 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 GFR600-25 is a filter regulator: one body removes water and particulate from compressed air and sets the downstream pressure. This configuration has a 1 in NPT port, a manual-drain bowl in aluminium alloy, a 5 um filter element (finer than the 40 um standard), an embedded square gauge reading in bar, and a reverse/check valve fitted. It is the low-pressure type, intended for circuits where the regulated pressure sits well below the standard type's range; the exact adjustment range for the low-pressure type is not published, so ask us to confirm it against your setpoint. Maximum 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 from the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in and PT, G or NPT threads; at size 600 the bowl is aluminium alloy. Flow is published as curves rather than a single rating, so we confirm flow and other datasheet figures on request.
| Model | GFR600-25MLJF3WTK AirTAC Filter Regulator NPT 1 in |
|---|---|
| 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, 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. 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 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) |
Feeding spray guns and air-assisted applicators on a paint shop line, where the 5 um element helps keep water and particulate out of the finish and the low-pressure regulator holds a low setpoint at each drop.
Supplying pilot and actuation air to large quarter-turn process valves on a plant utility header, with the bar-scale square gauge giving operators a local check of the regulated setpoint.
Running low-pressure clamps, guides and pushers on a packaging conveyor, where the 1 in NPT port suits the main header and the fitted reverse/check valve backs up the regulated circuit.
Size and port: the 600 size with a 1 in NPT port is the largest step in the GFR range; match it to your pipe diameter and the air demand of the line. Choices you can order on this family: manual drain (vent the bowl by hand on a schedule) instead of automatic or differential-pressure drain, the 5 um element instead of the 40 um standard, the square gauge in bar with MPa or psi scales also available, and a reverse/check valve, which this unit has fitted. Thread is NPT here; PT is the standard and G is also a catalogue option. The J code means no mounting bracket is included. 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes GFR flow as curves rather than a single rated figure, so we do not quote a number here. Tell us your line pressure, setpoint and expected air demand and we will confirm the flow from the datasheet before you order.
The M code means the bowl is drained by hand: open the drain at the end of a shift or on a set schedule. If you would rather not rely on an operator, the same GFR600-25 can be ordered with automatic or differential-pressure drain instead.
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.