The AirTAC GFR60020LF3WTK AirTAC Filter Regulator NPT3/4 Low-Pressure 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 GFR60020LF3WTK is an AirTAC GFR600 filter regulator: one body that removes water and particulate from compressed air and then regulates the downstream pressure. This 600-size unit is built with 3/4 in NPT ports, a 5 um filter element (code W), a differential-pressure drain in an aluminium alloy bowl, a low-pressure regulator, an embedded square gauge scaled in bar, and a reverse/check valve fitted. A mounting bracket is included. 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 G-series filter-regulator line spans sizes 200 to 600 with ports from 1/8 to 1 in, manual, automatic or differential-pressure drain options, 40 um standard or 5 um elements, and gauge scales in MPa, psi or bar. Flow is published as curves rather than a single rating, so ask us to confirm figures from the datasheet for your application.
| Model | GFR60020LF3WTK AirTAC Filter Regulator NPT3/4 Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT 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 — 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. |
| (blank) | Mounting bracket included. |
| (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. |
| W | Filtering grade 5 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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Filtered, regulated air feeding the clamp cylinders on a CNC fixture. The 5 um element helps keep the clamp valve clean, the low-pressure regulator suits circuits that work below standard line pressure, and the fitted reverse valve is already in the circuit.
Conditioning the air that drives bag-seal jaws and box-forming cylinders on a packaging line: water and particles are drained out first, then pressure is set to the level the machine's low-pressure circuit requires, read on the square bar gauge.
Supplying atomizing air to spray valves in a coating booth, where the 5 um element protects fine spray nozzles and the regulator holds a lower, stable setting for the finish rather than full line pressure.
Size 600 with 3/4 in NPT ports is the largest step in the range; step down to the 300 or 400 sizes if your port and flow demand are smaller. The 5 um element (code W) filters more finely than the 40 um standard - choose it where downstream valves and cylinders need cleaner air. Drain here is differential-pressure; automatic (A) and manual (M) versions exist if you prefer. The L code makes this a low-pressure regulator; the exact regulated-pressure range for the low-pressure type is not published in the standard tables, so confirm it with us before ordering. The gauge is the embedded square type scaled in bar; an external round gauge with MPa, psi or bar scales is an option. Thread is NPT as coded; PT (the standard) and G are order options. A mounting bracket is included. Flow is published as curves, not a single rating - 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 GFR600 as curves, not as a single rated figure, so we do not quote a number here. Tell us your line pressure and the flow your application needs, and we will confirm the sizing from the datasheet before you order.
L marks the low-pressure regulator type. Standard GFR regulators have a published adjustment range, but the exact range for the low-pressure type is not published in the standard tables, so confirm the regulated-pressure window with us before ordering. The rest of this unit decodes as a 5 um element, differential-pressure drain, square gauge scaled in bar, NPT3/4 ports, a fitted reverse valve and an included 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.