The AirTAC AirTAC GFR600-25 Filter Regulator NPT1 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 filter regulator: it removes water and particulate from compressed air and sets downstream pressure in a single body, so one unit does the job of a filter and a regulator. This 600-size configuration carries a 1 in NPT port for high-flow mains, a 40 um standard filter element, a manual drain on the bowl, and the low-pressure regulator type for circuits that run at reduced settings. Because it is size 600, the bowl is aluminium alloy. The embedded square gauge is fitted with a psi scale, a reverse/check valve is included, and the unit is supplied without a mounting bracket.
This is a genuine AirTAC part. The GFR range spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options include automatic or differential-pressure drains, a 5 um element (code W), alternative gauge scales in MPa or bar, G (BSPP) or NPT threads in place of the PT standard, and a mounting bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing or any datasheet figure for your application before ordering.
| Model | AirTAC GFR600-25 Filter Regulator NPT1 Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT 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 — square, 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). |
| F | Gauge shape: Square. 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. |
| 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) |
Feeding low-pressure clamping and holding actuators on a fabrication press line, where filtered plant air must be stepped down to a gentle, stable setting before it reaches the clamp cylinders.
Supplying filtered, regulated air to diverters, stoppers and lifters along a packaging conveyor, with the manual drain bled during scheduled line cleaning and the psi gauge giving operators a readable setpoint.
Conditioning supply air on a valve-actuation skid in a process plant, where a reverse/check valve protects the setting against supply reversal and the 40 um element keeps debris out of positioner air.
Start with the port step: the 600 size with its 1 in connection suits the largest branch flows in the GFR range, but the right choice depends on the air demand of the circuit - flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering. This unit is the low-pressure regulator type; its exact adjustment range is not published in the material we hold, so confirm the set pressure with us first. Drain choice matters: manual drain (as fitted here) needs an operator to bleed the bowl, while automatic and differential-pressure drains discharge condensate without attention. The standard element is 40 um; specify code W for the 5 um grade where downstream equipment needs finer filtration. The embedded square gauge is standard with MPa, psi or bar scales - this unit carries psi. Threads: PT is the catalogue standard, with G (BSPP) and NPT available as order options - this unit is NPT. A mounting bracket is optional (this configuration omits it), and a reverse/check valve is fitted.
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 rated flow, Cv or SCFM number. Tell us your application and air demand and we will confirm the sizing from the datasheet on request before you order.
The M in the code GFR60025MLJF2TK specifies a manual drain, which means condensate is bled from the aluminium bowl by hand. If your installation is unattended or drains frequently, the same 600-size filter regulator can be ordered with an automatic or differential-pressure drain instead - just ask us to quote the alternative code.
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.