The AirTAC AirTAC GFR60020LJC1TK Low-Pressure Filter Regulator 3/4 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 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 GFR60020LJC1TK is an AirTAC GFR-series filter regulator: a 40 um filter and a pressure regulator combined in one body, size 600 with 3/4 in NPT ports. This unit is the low-pressure type, intended for circuits regulated below the standard setting range - the exact adjustment range for the low-pressure version is not published, so confirm it with us before ordering. It carries the default differential-pressure drain, which discharges collected condensate without manual intervention, an aluminium alloy bowl (size 600 specification), an external round gauge with an MPa scale, and a built-in reverse/check valve; no mounting bracket is included (code J). Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, drain choices (differential-pressure, automatic or manual), 40 um standard or 5 um (W) filtration, gauge scales in MPa, psi or bar, and PT, G or NPT threads. AirTAC publishes flow for this series as curves rather than a single rated figure, so send us your flow and pressure requirements and we will confirm sizing and datasheet figures on request.
| Model | AirTAC GFR60020LJC1TK Low-Pressure Filter Regulator 3/4 NPT |
|---|---|
| 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, MPa 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. |
| 1 | Gauge scale: MPa. 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) |
On a welding or machining fixture that clamps with air regulated below normal shop pressure, this low-pressure GFR keeps the circuit filtered and held at the set point the fixture was designed around.
Feeding cylinders and actuators on a packaging line's 3/4 in drop: the 40 um element strips water and pipe scale ahead of the regulator, and the differential-pressure drain keeps the aluminium bowl clear without daily manual draining.
Upstream of a CNC machine's air-operated tool changer and clamps, this unit filters plant air and regulates it to the pressure the machine builder specifies, while the built-in reverse/check valve blocks backflow toward the supply line.
Choose the size by the port and flow your line needs: this unit is size 600 with 3/4 in NPT ports, the largest step in the family, and because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering. The drain here is differential-pressure (the catalogue default); automatic (A) and manual (M) drains are order options. Filtration is the 40 um standard element - specify W for the 5 um grade if downstream equipment needs finer air. The gauge fitted is the external round type with an MPa scale; psi or bar scales and the embedded square gauge are alternatives. The T in the code selects NPT threading; PT is the AirTAC standard and G (BSPP) is also available to order. J means no mounting bracket is supplied - order a bracket variant if you need one.
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 number, so we do not quote a figure here. Send us your line pressure, required downstream pressure and air demand, and we will confirm the flow from the datasheet on request.
L marks the low-pressure regulator type, intended for circuits regulated below the standard setting range. The exact adjustment range for the low-pressure version is not published in the catalogue sheet we work from, so confirm it with us before ordering. The rest of the code decodes as: size 600, 3/4 in NPT ports, 40 um element, differential-pressure drain, round MPa gauge, reverse/check valve fitted, no bracket.
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.