The AirTAC GFR600C25ALF3TK AirTAC Filter Regulator 1 in NPT 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 See datasheet ports, a differential-pressure 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 GFR600C25ALF3TK is a filter regulator: water and particulate removal plus pressure regulation combined in a single body. This size 600 unit is the largest in the G-series, with a 1 in NPT port for high-capacity supply lines. It is the low-pressure type, fitted with an automatic drain that purges collected condensate without manual attention, a 40 um standard filter element, an embedded square gauge scaled in bar, and a reverse/check valve. The metal bowl on this 600 size is aluminium alloy, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, a 40 um standard or 5 um (code W) element, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR600C25ALF3TK AirTAC Filter Regulator 1 in NPT |
|---|---|
| Series | GFR600 filter regulator |
| Port size | See datasheet (PT 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 | Differential-pressure drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — factory standard, Factory standard scale |
| 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. |
|---|---|
| C2 | Port size See datasheet. This body offers 20 = PT3/4", 25 = PT1". |
| (blank) | Drain: Differential-pressure 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (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. |
| (blank) | PT 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-C2 (two-unit set) |
Feeds filtered, pressure-controlled air to spray booths and air-actuated paint equipment, where water and grit in the supply would ruin finish quality and the low-pressure type matches gentle setpoints.
Serves the cylinder and actuator manifold on a bottling or canning conveyor, cleaning the compressed air and holding a steady supply pressure while the automatic drain copes with condensate on a long shift.
Conditions the air feeding low-pressure circuits on wrapping and cartoning machinery, where the regulator trims pressure down for delicate clamping and sealing stations and the bar gauge gives operators a local reading.
Start with the port step: size 600 with a 1 in NPT port suits the largest supply lines in the G-series range, and the right size depends on the flow your line needs. This unit carries the automatic drain, so no manual draining is required; differential-pressure and manual drain versions are available if you prefer a different regime. The 40 um element is the standard grade - choose the 5 um (W) option where downstream equipment needs finer filtration. The embedded square gauge here reads in bar; MPa and psi scales and an external round gauge are alternatives. Thread is NPT on this code, with PT as the standard and G (BSPP) available to order, and the bracket is included.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, and the exact regulation range of the low-pressure type is not stated in the material we hold. Ask us to confirm flow and range figures against your application before ordering.
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 family as curves rather than a single rated figure, so we do not quote one number. Send us your line pressure and demand and we will confirm the flow figures from the datasheet for this exact model before you order.
The A in the code selects the automatic drain, which expels collected condensate from the aluminium bowl without anyone opening it - useful on unattended or high-duty lines. The GFR family is also available with a differential-pressure drain (the default) or a manual drain if your maintenance routine prefers those.
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.