The AirTAC GFR600-20LJC2WK AirTAC Filter Regulator 3/4 in PT is a genuine G-series filter regulator: water separation, 5 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 GFR600-20LJC2WK is a size 600 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built around a 3/4 in PT port, a 5 um filter element (the finer of the two published grades), a differential-pressure drain that bleeds collected condensate automatically when the pressure differential across the element rises, and a low-pressure regulator type. It ships with an external round gauge scaled in psi, a reverse/check valve fitted to hold downstream pressure, and no mounting bracket.
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, a choice of 40 um or 5 um filtration, differential-pressure, automatic or manual drains, gauge styles and scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR600-20LJC2WK AirTAC Filter Regulator 3/4 in PT |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (PT thread) |
| Filtering grade | 5 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, psi 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. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Feeds and regulates the air supply to pneumatic clamps and swing cylinders on an assembly fixture, where the circuit calls for fine 5 um filtration and a low-pressure regulator setting rather than full line pressure.
Conditions and steps down the air feeding positioners and pilot actuators on large process valves, with the reverse/check valve holding the pilot circuit steady if upstream supply dips.
Sits at the drop point feeding cylinders and air jets on a packaging or conveyor line, filtering water and particles to 5 um and holding a low regulated pressure for gentle product-handling actuation.
Start with the port step: size 600 carries a 3/4 in PT port, the largest standard step in the GFR range, so match it to your main air line and let the published flow curves - not a single rated figure - drive the size choice; we will confirm sizing against your application on request. This unit is the low-pressure regulator type, so verify the control band suits your circuit before ordering. It carries the 5 um element (code W) rather than the 40 um standard, a differential-pressure drain, a round psi gauge, and a reverse/check valve; if you would prefer a manual or automatic drain, a square MPa or bar gauge, or G or NPT threads instead of PT, those are catalogue options on the same series. A mounting bracket is optional (this code omits it).
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 number, so we do not quote a figure here. Tell us your line pressure and the air demand of your equipment and we will confirm the correct size and the flow figures from the datasheet on request before you order.
The L code in GFR600-20LJC2WK marks the low-pressure regulator type, intended for circuits controlled well below standard line pressure. The exact adjustment band for this variant is not published in the material we hold, so ask us to confirm the range from the datasheet for your setpoint. Everything else in the code decodes as: 5 um element (W), no bracket (J), round psi gauge (C2), reverse/check valve (K), differential-pressure drain (default), PT thread.
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.