The AirTAC GFR600-25 AirTAC Filter Regulator 1 in PT, Low-Pressure 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 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 size-600 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is the 1 in PT-threaded port version with a manual drain on the aluminium alloy bowl, the standard 40 um filter element, and the low-pressure regulator type for circuits that run below standard line pressure. It ships with an external round gauge scaled in psi and a built-in reverse (check) valve, and no mounting bracket is fitted.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in and PT, G or NPT threads. Options include automatic or differential-pressure drains, a 5 um element (code W), square or round gauges in MPa, psi or bar scales, and bracket mounting. Rated flow figures are published as curves rather than a single number, so ask us to confirm sizing against your application and we will supply the datasheet on request.
| Model | GFR600-25 AirTAC Filter Regulator 1 in PT, Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (PT thread) |
| Filtering grade | 40 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, psi 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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) |
On a carton-sealing or case-packing machine, the clamping cylinders often need a softer, regulated supply below normal line pressure. This low-pressure filter regulator cleans the shop air, holds the set pressure for consistent grip, and the check valve helps hold the circuit if upstream supply dips.
Air-assisted spray guns are sensitive to dirt and moisture in the supply. Feeding the booth manifold through this unit removes water and particulate at the 40 um level, regulates the atomising pressure from a psi-scaled gauge, and the manual drain lets the operator bleed accumulated condensate at shift start.
A workholding fixture on a pneumatic press needs clean, steady air at a reduced setting to avoid damaging the part. This 1 in filter regulator sits at the drop to the fixture, the reverse valve prevents back-feed when the supply is shut off, and the aluminium bowl with manual drain suits a maintained cell.
Start with the port step: size 600 with a 1 in PT port is the largest GFR frame, so match it to the pipe diameter and the air demand of the circuit rather than upsizing blindly. Because flow is published as curves, not a single rated figure, send us your required flow and we will confirm the correct size from the datasheet before you order. For the drain, manual suits installations where an operator can bleed the bowl on a routine; choose automatic or differential-pressure codes if the unit is hard to reach. The standard element is 40 um; specify the W code if you need 5 um. The round gauge on this unit reads in psi; square gauges and MPa or bar scales are available as options. PT is the standard thread, with G (BSPP) and NPT available as order options, and a mounting bracket can be added if this no-bracket version does not suit your panel layout.
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 performance as curves, not as a single rated number, so we do not quote a figure that is not in the datasheet. Tell us your required flow and operating pressure and we will confirm the correct sizing against the datasheet curves on request before you order.
The M code in GFR60025MLJC2K means the aluminium bowl is drained by hand, which suits accessible installations with a routine check; automatic and differential-pressure drain codes are available if the unit will be hard to reach. The L code marks the low-pressure regulator type, intended for circuits running below standard line pressure; its exact adjustment range is not published in the sheet we work from, so we will confirm it on request.
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.