The AirTAC GFR60020LJC3TK 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 GFR60020LJC3TK is an AirTAC GFR-series filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single body. This size-600 unit is built around a 3/4 in NPT port and is the low-pressure type, so it suits circuits that run well below standard line pressure. It carries the standard 40 um filter element, a differential-pressure drain on the bowl, a round pressure gauge scaled in bar, and a reverse/check valve fitted. The bowl on this size is aluminium alloy, no mounting bracket is included, maximum inlet pressure is 1.0 MPa (145 psi), and operating temperature is -5 to 70 C (non-freezing).
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 options that include automatic or manual drains, a 5 um element (code W), different gauge styles and scales, G or NPT threads, and bracket choices. Because flow is published as curves rather than a single rating, we confirm the datasheet and sizing figures for your application on request.
| Model | GFR60020LJC3TK 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 — round, 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). |
| C | Gauge shape: Round. 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) |
Feeding spray guns and air-assisted applicators on a paint line that runs at reduced pressure, where the regulator holds the set point and the 40 um element keeps water and pipe scale out of the finish.
Supplying cylinders and hold-down clamps on a packaging conveyor whose circuit runs below standard line pressure, with the round bar gauge letting operators check the set point at a glance.
Conditioning bench air on a laboratory manifold or test rig: filtering incoming compressed air and regulating it down to the low working pressure the instruments and fixtures need.
Choose the size and port step against the air your circuit actually consumes: sizes 200 through 600 step up in port and flow capacity, and this model sits at the top of the range with a 3/4 in NPT port. Because flow is published as curves rather than one rated number, send us your consumption and line pressure and we will confirm the sizing before you order. The remaining choices are all decodable from the code: drain type (differential-pressure here, with automatic and manual available), filter grade (40 um standard, 5 um with code W), gauge style and scale (this unit has a round gauge in bar; square embedded gauges with MPa, psi or bar scales exist), thread (PT is the standard, G and NPT are order options), and bracket (omitted on this model with code J). As a low-pressure type, its regulation range differs from the standard unit - ask us to confirm the exact range that matches your set pressure.
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 GFR flow as curves rather than a single rated figure, so there is no one l/min or SCFM number we can quote. Tell us your port size, line pressure and air consumption, and we will confirm the flow from the datasheet for your application on request.
The L in GFR60020LJC3TK marks the low-pressure regulator type, intended for circuits that run well below standard line pressure. Its exact regulation range is not published in the standard tables, so ask us to confirm the range that matches your set pressure 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.