The AirTAC GFR600-25ALJF2T 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 GFR600-25ALJF2T is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This size 600 unit is built with 1 in NPT ports, an automatic drain that expels collected condensate without manual attention, a 40 um standard filter element, and a fitted square gauge scaled in psi. It is the low-pressure type, suited to circuits that operate well below standard line pressures, and it ships without a mounting bracket. The size 600 bowl is aluminium alloy, and the maximum inlet pressure is 1.0 MPa (145 psi) with an operating temperature of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, PT as the standard thread and G or NPT as order options, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um (W) filtration, gauge and scale choices, and bracket or no-bracket builds. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR600-25ALJF2T 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 | 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 | Automatic drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, psi 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. 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". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 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. |
| (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) |
At a 1 in take-off from a factory compressed-air ring main, this filter regulator cleans the supply of water and pipe-scale and holds a steady low-pressure feed to a whole production cell, with the automatic drain keeping condensate off your maintenance schedule.
Large-bore air cylinders driving heavy conveyor gates and diverters need clean, regulated air at the header. This unit filters the line and regulates the working pressure to the cylinder circuit, with the psi gauge giving operators a direct reading at the point of use.
Workshops and test rigs servicing commercial-vehicle air systems use 1 in NPT lines at moderate pressures. This low-pressure filter regulator conditions the shop air feeding brake-system test benches and trailer-air tool circuits, with automatic drain suiting intermittent daily use.
Size 600 with a 1 in port is the largest step in the GFR range, so start there when your line is 1 in and your air demand is at the top of what the family serves; the smaller 200/300/400 sizes step down in port and flow. This unit is the low-pressure type, so confirm your working band suits it before ordering - the exact regulation range for the low-pressure build is not published in our sheet and we will confirm it on request. The automatic drain suits unattended duty; choose manual or differential-pressure drain codes if your maintenance routine differs. The 40 um element is standard; specify W for 5 um where finer particulate removal matters. The fitted square gauge here reads in psi; MPa and bar scales and an external round gauge are alternatives. NPT is the thread on this code; PT is the catalogue standard and G is also orderable. This build has no bracket - add a bracket code if you need panel or wall mounting. Flow is published as curves, not a single rating, so 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. 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, not as a single rated figure, so we do not quote a number here. Tell us your line size and air demand and we will confirm the flow curve from the datasheet and check the sizing against your application on request.
The A in this code fits the automatic drain: the bowl expels collected condensate on its own, so no one has to bleed it manually - useful on units that run unattended. The L in the code marks the low-pressure regulator type, intended for circuits that work below standard line pressures; its exact regulation range is not published in our sheet, so ask us to confirm it before ordering.
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.