The AirTAC GFR600-25 AirTAC Filter Regulator NPT 1 in 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 automatic drain and regulates 0.15 - 0.9 MPa (20 - 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 that removes water and particulate from compressed air and holds downstream pressure at your set point. This size 600 unit is built around a 1 in NPT port for high-flow main-line service. It carries the standard 40 um filter element, an automatic drain that purges collected condensate without anyone opening the bowl, and - because this is the 600 size - an aluminium alloy bowl suited to larger installations. The standard regulator adjusts between 0.15 and 0.9 MPa (20-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C (non-freezing). No gauge is fitted with this configuration and no mounting bracket is included.
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, and can be ordered with manual or differential-pressure drain instead of automatic, a 5 um element (code W), a fitted gauge, a reverse/check valve, a bracket, and PT, G or NPT thread. Flow figures are published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR600-25 AirTAC Filter Regulator NPT 1 in |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard 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 | Automatic drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Not fitted |
| Reflux valve | Not fitted |
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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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. |
| (blank) | No reverse-flow valve (the default). |
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) |
Filtering and regulating the air feeding a paint line's distribution header, keeping water and pipe scale out of spray equipment while holding a stable set point for consistent atomising air.
Conditioning the supply to pneumatic cylinders and stopper gates on a bottling or carton-packing conveyor, so clamping and diverting actions see clean air at a repeatable pressure.
Prepping the air feeding a machining centre's tool-change cylinder and air-powered clamps, where the automatic drain handles condensate from the shop-air drop without daily attention.
Start with the port: this unit is 1 in NPT, so match it to a line where that port size suits the air demand of the equipment downstream - the size 600 step is the largest in the GFR range. Drain choice matters in unattended installations: automatic drain (this configuration) purges on its own, while manual drain requires someone to operate it and differential-pressure drain purges when the pressure drop across the element rises. The 40 um element is the standard grade; specify the 5 um W option if finer filtration is required. Gauge, reverse/check valve and bracket are all order options, and thread is PT as standard with G and NPT as catalogue options. Flow is published as curves, not a single rating, so send us your air demand and we will confirm sizing against the datasheet before you order.
Quick checklist
The aluminium-alloy bowl on the GFR600 suits harsher environments than a PC bowl. Without the K option, air cannot flow back 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's air demand and we will confirm the datasheet flow figures for this 1 in NPT unit on request before you order.
The A in the code GFR60025AJNT specifies an automatic drain, which purges collected condensate from the bowl without operator attention - useful on lines that run unattended. The same GFR600-25 can be ordered with a manual drain or the default differential-pressure drain instead, and with a 5 um element, a gauge or a bracket if your installation needs them.
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.