The AirTAC GFR60020LJNWTK 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 GFR60020LJNWTK 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 fitted with a 3/4 in NPT port, the fine 5 um filter element (code W), a differential-pressure drain on the bowl, and a reverse/check valve (code K). It is the low-pressure regulator type (code L) and is supplied without a gauge (code N) and without a mounting bracket (code J). The bowl on size-600 units is aluminium alloy. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with a choice of port sizes, PT (standard), G or NPT threads, differential-pressure, automatic or manual drains, 40 um standard or 5 um fine filtration, gauge options and standard or low-pressure regulator types. Flow is published in the AirTAC catalogue as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR60020LJNWTK 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 | Not fitted |
| 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. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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) |
Installed ahead of a pneumatic press or clamping station that runs at reduced set pressure: the GFR body removes water and fine particles from the shop air, then holds the reduced supply steady, while the check valve holds downstream pressure if the upstream line drops.
Mounted at the drop feeding cylinder-driven diverters and stops on a packaging conveyor line: the 5 um element protects valve spools from particulate carryover, the regulator sets the actuator pressure, and the 3/4 in NPT port suits a main branch line.
Used at a take-off from a laboratory or test-cell compressed-air ring main: filtration and regulation in one body keeps the bench supply clean and at a stable reduced pressure, with the aluminium bowl and differential-pressure drain handling condensate without manual attention.
Size and port set the capacity: this is the largest GFR frame, size 600, with a 3/4 in NPT port, so step up or down in the 200/300/400/600 range according to the air demand of the line it feeds. Filtration here is the 5 um fine element (code W); choose 40 um (standard) where only coarse water and particle removal is needed. Drain is differential-pressure (the default), which bleeds the bowl automatically as the pressure differential rises; automatic (A) and manual (M) drains are orderable alternatives. This unit is the low-pressure regulator type (L) - the exact adjustment range for that type is not published in the catalogue, so confirm it with us against your set pressure. No gauge is fitted (N); gauges are available as options in square or round style with MPa, psi or bar scales. Thread is NPT here; PT is the catalogue standard and G (BSPP) is also orderable. No mounting bracket is included (J); brackets are optional. Because AirTAC publishes flow only as curves and not as a single rated number, 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 GFR series as curves in the catalogue, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Tell us your application and we will confirm the flow and datasheet figures for the GFR600 at 3/4 in NPT on request before you order.
The N in the code GFR60020LJNWTK means this unit is supplied without a gauge. Gauges are a catalogue option on GFR units: an embedded square gauge or an external round gauge, with MPa, psi or bar scales. Order the equivalent code with the gauge position filled if you want one fitted.
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.