The AirTAC GFR600-25LJF3TK AirTAC Low-Pressure Filter Regulator 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 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 GFR600-25LJF3TK is a filter regulator: it removes water and particulate from compressed air and holds a downstream pressure setting in a single body. This size 600 unit has a 1 in NPT port, the standard 40 um filter element, and a differential-pressure drain, the default drain option in the series. It is the low-pressure (L) type, intended for circuits set below the standard regulator band; the exact adjustment range for this variant is not published, and we confirm it from the datasheet on request. The configuration is completed by an aluminium alloy bowl (standard on size 600), an embedded square gauge scaled in bar, and a fitted reverse/check valve; it is supplied without a mounting bracket (code J). Max inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, PT as the standard thread and G or NPT to order, plus manual or automatic drain options, a 5 um (W) filter element, gauge scale choices and bracket variants. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm sizing and any datasheet figure against your application before ordering.
| Model | GFR600-25LJF3TK AirTAC Low-Pressure Filter Regulator 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 | Differential-pressure drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, bar 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". |
| (blank) | Drain: Differential-pressure 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. |
| 3 | Gauge scale: bar. 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) |
Filtering and regulating the supply to a light-duty pneumatic press or clamping fixture that runs below standard line pressure, with the fitted check valve holding the downstream setting between cycles.
Conditioning air for a packaging line's actuator and valve bank: the 40 um element keeps water and debris out of cylinders and directional valves while the regulator holds a steady low set point.
Feeding filtered, regulated low-pressure air to a laboratory test rig or pilot process, where the aluminium-bowl size 600 body and the bar-scale square gauge make the set point easy to read and verify.
The real, decodable choices in this series are the size and port step (200/300/400/600, 1/8 to 1 in) matched to the air your circuit needs; the drain type (differential-pressure as here, automatic with A, or manual with M); the filter element (40 um standard, 5 um with W); the gauge (embedded square as here, external round optional, in MPa, psi or bar scales); the thread (PT standard, G or NPT to order); and the bracket. This unit is the low-pressure L type with no bracket and a fitted check valve. Because flow is published as curves rather than one rated number, send us your application conditions and we will confirm sizing from the datasheet before you order.
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, not as a single rated figure, so we do not quote a number here. Send us your line pressure, set point and expected air demand, and we will confirm the flow from the datasheet for this 1 in NPT, low-pressure unit before you order.
L marks the low-pressure regulator type, intended for circuits set below the standard band; the exact adjustment range for this variant is not published, so we confirm it on request. The drain on this unit is the differential-pressure type, the default drain option; automatic (A) and manual (M) drains are orderable alternatives in the series.
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.