The AirTAC GFR60020ALJF3TK 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 automatic 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 GFR60020ALJF3TK is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure in a single body. This size 600 unit is threaded NPT3/4, drains condensate automatically, carries the standard 40 um filter element and is built on the low-pressure regulator type. It includes the embedded square gauge scaled in bar and a fitted reverse/check valve; no mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, in PT (standard), G and NPT threads, with a choice of drain type, 40 um or 5 um filtration, gauge scale and bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). Flow figures are published as curves rather than a single rating, so ask us to confirm sizing against your application; the datasheet is available on request.
| Model | GFR60020ALJF3TK 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 | Automatic 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". |
| A | Drain: Automatic 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) |
Filtered, regulated air for the cylinders and diverting gates on a beverage bottling line, where the low-pressure regulator type and automatic drain keep the circuit steady without daily manual draining.
Conditioned air for lab automation gantries and sample-handling cylinders, where the 40 um element and automatic condensate drain help protect precision pneumatic valves from water and debris.
Regulated air for stops, gates and pushers along a packaging conveyor, with the fitted reverse/check valve blocking backflow through the unit in the 3/4 in main line.
Size and port set the capacity step: this is size 600 with a 3/4 in NPT thread, the largest port in the family. Where a bowl is fitted, choose the drain: differential-pressure (default), automatic (this unit) or manual - automatic drains condensate without operator attention. Filter grade is 40 um standard; specify code W for the 5 um element where finer filtration is needed. Gauge scale is selectable (MPa, psi or bar; this unit is bar), the thread can be ordered as PT, G or NPT, and a mounting bracket is optional. The L code selects the low-pressure regulator type, intended where the controlled pressure sits below the standard type's range; the catalogue does not publish the exact adjustment range for this type, so confirm your set pressure with us. Flow is published as curves, not a single rating - ask us to check the curve against your required flow 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.
Flow for the GFR600 series is published as curves, not as a single rated figure, so we do not quote one number here. Send us your required flow and line pressure and we will confirm from the AirTAC datasheet whether this size 600, 3/4 in NPT unit is correctly sized for the application.
The L code selects AirTAC's low-pressure regulator type, intended where the controlled pressure sits below the standard type's adjustment range. The catalogue does not publish the exact range for this type, so confirm your set pressure with us before ordering. Everything else on this unit is standard decode: automatic drain, 40 um element, square gauge scaled in bar, reverse/check valve fitted and no mounting 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.