The AirTAC GFR60020LJF3TK AirTAC Filter Regulator NPT3/4 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 PT3/4" 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 GFR60020LJF3TK is a GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in one body. This size-600 unit carries a 3/4 in NPT port, the standard 40 um filter element, and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element rises. Because it is size 600, the bowl is aluminium alloy. The code also specifies the low-pressure regulator type, a built-in square gauge scaled in bar, a reverse (check) valve fitted, and no mounting bracket.
This is a genuine AirTAC part from the GFR range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drains, a 5 um element option (code W), gauge scale choices, and PT, G or NPT threads. Flow is published by AirTAC as curves rather than a single rated figure, so we confirm the datasheet and sizing figures on request.
| Model | GFR60020LJF3TK AirTAC Filter Regulator NPT3/4 Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (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. |
|---|---|
| 20 | Port size PT3/4". 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 · PT3/4" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Mounted at the drop of a 3/4 in main feeding gripper and pusher cylinders on a bottling line, it strips water and debris from the air and holds the downstream pressure the actuators were set up for, with the check valve holding the setting if upstream supply dips.
On a pneumatic clamping or light press station running at reduced pressure, the low-pressure regulator type lets the operator set a working pressure below the normal band, while the 40 um element keeps wear particles out of the valve stack.
Installed as the first stage on an OEM machine's air-prep manifold, it conditions the incoming supply and presents a stable, filtered pressure to the machine's own directional valves and FRL take-offs, with the bar-scaled gauge giving a local setpoint reference.
Start with the port step: GFR units come in sizes 200, 300, 400 and 600, and this one is the largest, with a 3/4 in NPT port, so it belongs at the head of a 3/4 in air main. Choose the drain to suit maintenance access: differential-pressure (this unit) drains on pressure drop, automatic drains on a timer-free cycle, and manual needs a scheduled bleed. Filter grade is 40 um as standard; order the W variant if the 5 um element is needed. Gauge scale is selectable (MPa, psi or bar) - this unit reads in bar on the embedded square gauge, with an external round gauge available. Thread is PT as standard, with G and NPT as order options; this unit is NPT. Bracket included is the default, but this code specifies no bracket (J). The L in this code marks the low-pressure regulator type, intended where controlled pressure sits below the standard range. 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. 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 there is no one l/min or SCFM number we can quote honestly. Send us your application's flow and pressure requirements and we will confirm the sizing from the datasheet on request.
L marks the low-pressure regulator type, intended for circuits where the controlled pressure sits below the standard range. The exact regulation range for this low-pressure variant is not published in the material we hold, so please confirm the setpoint you need with us and we will verify it against the datasheet. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
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.