The AirTAC GFR600C20LNTK AirTAC Filter Regulator 3/4 in NPT 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 GFR600C20LNTK is a size 600 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration has a 3/4 in NPT port, the standard 40 um filter element, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and a built-in reverse/check valve that holds downstream pressure when the upstream supply is lost. It is the low-pressure type, intended for circuits regulated well below the standard range, and it ships with a mounting bracket. As a size 600 unit the bowl is aluminium alloy, and no gauge is fitted, so add a separate gauge if the circuit needs a local pressure reading.
This is a genuine AirTAC part. The GFR line spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, thread options PT (standard), G and NPT, manual, automatic or differential-pressure drains, a 5 um element option, gauge choices and a reverse-valve option. We do not quote a single rated flow figure because AirTAC publishes flow as curves; ask us and we will confirm the datasheet figures for your application before you order.
| Model | GFR600C20LNTK AirTAC Filter Regulator 3/4 in NPT |
|---|---|
| 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) |
On a stamping or assembly press running actuators at reduced supply pressure, this filter regulator cleans the shop air and holds the working pressure, with the check valve keeping the circuit pressurised during supply dips.
A carton-forming and sealing conveyor section with air cylinders and grippers takes its 3/4 in supply through this unit, so water carryover from the compressor ring main is knocked out before it reaches the valves.
Feeding a bank of directional control valves on an automated machine, this unit filters the incoming air to 40 um and regulates it to the manifold, while the check valve prevents backflow through the supply leg.
Start with the port and size: this unit is size 600 with a 3/4 in NPT port, the largest step in the GFR range, chosen when the air demand at the point of use is high. Next, match the drain to the installation: differential-pressure drain (fitted here) suits lines with steady flow, automatic drain suits unattended duty, and manual drain suits low-moisture or periodically attended installations. The standard element is 40 um; specify the W code for 5 um where finer pre-filtration is needed. Gauge scale (MPa, psi or bar) and the reverse/check valve are order options - this unit already carries the check valve but no gauge. Thread is NPT here; PT is the standard catalogue thread and G is also available to order, and the bracket is included.
One honest note on sizing: AirTAC publishes filter-regulator flow as curves rather than a single rated number, and the exact regulation range of the low-pressure type is not stated in the material we hold. Send us your line pressure, set pressure and air demand, and we will confirm the right model and the datasheet figures before you order.
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 series as curves, not as a single rated figure, so we do not quote a number here. Tell us your line pressure, set pressure and air demand, and we will confirm the datasheet flow figures for this 3/4 in size 600 unit on request before you order.
The N in the code means no gauge is fitted; a gauge (round or square, with MPa, psi or bar scale) is an order option you can add. The K means a reverse/check valve is built in, which holds downstream pressure if the upstream supply is interrupted. The L marks the low-pressure regulator type for circuits set well below the standard range.
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.