The AirTAC GFR600C20LJNTK AirTAC Filter Regulator NPT 3/4 in 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 See datasheet 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 GFR600C20LJNTK is a size 600 filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single body. This configuration is built around a 3/4 in NPT port, carries the standard 40 um filter element, and drains condensate by differential pressure, so the bowl vents itself as the pressure drop across the element builds. It is the low-pressure (L) regulator variant, comes with a reverse/check valve fitted to hold downstream pressure, and has no gauge and no mounting bracket. At size 600 the bowl 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 filter-regulator line spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and can be ordered with automatic, manual or differential-pressure drains, a 5 um (W) element, an embedded square gauge or an external round gauge in MPa, psi or bar scale, G (BSPP) or NPT threads in place of the PT standard, and with or without a bracket. Because flow is published as curves rather than a single rating, we confirm the datasheet figures for your application on request.
| Model | GFR600C20LJNTK AirTAC Filter Regulator NPT 3/4 in |
|---|---|
| Series | GFR600 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard 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 — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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. |
|---|---|
| C2 | Port size See datasheet. 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (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. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-C2 (two-unit set) |
Fixture clamps and swing cylinders that run on a reduced-pressure branch need clean, regulated air at the point of use. A filter regulator mounted at the branch take-off filters the line air and holds the clamp circuit at its set pressure, while the check valve helps the downstream side hold if supply dips.
Carton formers and case sealers run air cylinders, vacuum generators and air jets off a single machine drop. A 3/4 in filter regulator at the drop removes water and pipe scale before the valves and keeps the machine circuit regulated, with the differential-pressure drain clearing condensate without daily manual attention.
A machining cell's tool-change cylinders, air chucks and coolant nozzles all share one supply drop. A size 600 filter regulator with an aluminium alloy bowl conditions that drop - filtering particulate and regulating the cell pressure - and the fitted check valve keeps the cell's air from backing out toward the header.
Start with the port and size step: this unit is size 600 with a 3/4 in NPT port, the largest step in the GFR line, so step down to 200/300/400 if your circuit is smaller - but size against required flow, not port alone. Next choose the drain: differential-pressure (as fitted here) vents automatically with the pressure drop, automatic (A) drains on a level or timer principle, and manual (M) needs someone to open the bowl. The 40 um element is standard; specify the W code for 5 um where finer particulate matters. Gauges are optional: embedded square or external round, in MPa, psi or bar scale - this unit has none fitted. Thread is PT as the AirTAC standard, with G (BSPP) and NPT as orderable options (this unit is NPT). Brackets are optional; this unit ships without one. Note that this is the low-pressure (L) regulator type, and its exact adjustment range is not published - ask us to confirm it against your set pressure. Finally, flow is published as curves, not a single rating, so ask us to confirm sizing against the application before ordering.
Quick checklist
The aluminium-alloy bowl on the GFR600 suits harsher environments than a PC bowl. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR line as performance curves rather than a single rated number, so there is no one l/min or SCFM figure we can honestly quote. Send us your inlet pressure, set pressure and expected air consumption, and we will confirm the sizing from the datasheet curves on request before you order.
Yes. Gauge is an orderable option on GFR units: an embedded square gauge or an external round gauge, with MPa (1), psi (2) or bar (3) scale. This particular model was ordered with no gauge (N). The L in the code marks the low-pressure regulator type rather than the standard type, and its exact adjustment range is not published, so ask us to confirm it against your set pressure.
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.