The AirTAC GFR60025MLC3WTK AirTAC Filter Regulator NPT1 Low-Pressure 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 GFR60025MLC3WTK is a size-600 filter regulator that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built around a 1 in NPT port for high-flow supply lines, a manual drain bowl in aluminium alloy (the 600 size uses an aluminium alloy bowl), a fine 5 um filter element (code W) for cleaner air than the standard 40 um grade, and a low-pressure regulator type. A round pressure gauge scaled in bar is fitted, and a reverse/check valve is included to hold downstream pressure if the upstream supply drops.
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 elements, standard or low-pressure regulator types, gauge and thread options, and bracket choices. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures for your application on request.
| Model | GFR60025MLC3WTK AirTAC Filter Regulator NPT1 Low-Pressure |
|---|---|
| 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 — 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. 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). |
| C | Gauge shape: Round. 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 a mechanical press plant's 1 in air ring main, this unit filters water and scale from the header supply and holds a steady low-pressure setting at the press, with the check valve protecting the setting during upstream dips.
On a bottling hall's actuator header, the 5 um element keeps fine contamination away from cylinder and valve seals, while the regulator holds the low working pressure the grippers and pushers were set up for.
Supplying looms and winding heads that run on low regulated pressure, the unit cleans the mill's compressed air and gives operators a bar-scaled gauge and manual drain point as part of the daily check round.
Start with the port step: this unit is the size-600 body with a 1 in NPT port, the largest in the GFR range, so match it to lines where supply capacity - not a single rated flow number - is the deciding factor. The 5 um element (code W) suits downstream equipment that needs cleaner air than the standard 40 um grade; the manual drain means an operator drains the bowl on a routine, so choose automatic or differential-pressure drain codes if the installation is unattended. The low-pressure regulator type is selected where the working band sits below the standard range; the exact range for this type is not published, so confirm it with us. The fitted round gauge reads in bar, and scale options in MPa or psi exist on other codes. Thread is NPT here, with PT (standard) and G available as order options; a mounting bracket is included.
Because flow is published as curves rather than 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 flow for the GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your line pressure, downstream pressure setting and the equipment you are feeding, and we will confirm the sizing from the datasheet on request.
The M in the code specifies a manual drain: an operator opens the bowl drain to expel collected water and dirt, which suits attended installations on a maintenance round. If the unit will sit unattended, the GFR600 series is also available with automatic or differential-pressure drain codes - ask us for the alternative model number.
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.