The AirTAC GFR600C20AJF3TK AirTAC Filter Regulator NPT3/4, Auto Drain 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 GFR600C20AJF3TK is an AirTAC GFR600 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This unit is built on the largest G-series size with a 3/4 in NPT port, an automatic drain that expels collected condensate without manual attention, a 40 um standard filter element, an embedded square gauge reading in bar, and a reverse/check valve fitted to hold downstream pressure. It is supplied without a mounting bracket, and the size 600 bowl is aluminium alloy for added durability.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, drain, filter grade, gauge, thread and bracket options to suit the installation. Flow figures are published as curves rather than a single rating, so ask us to confirm sizing and datasheet details against your application before ordering.
| Model | GFR600C20AJF3TK AirTAC Filter Regulator NPT3/4, Auto Drain |
|---|---|
| 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) |
Installed at the take-off of a factory compressed-air main, it filters water and scale from the header supply and holds a steady regulated pressure to the distribution lines, with automatic drain keeping condensate off the floor.
Feeding cylinders and air-operated grippers on a packaging or palletising conveyor, the 3/4 in port serves the line's demand while the regulator keeps actuator speed consistent and the 40 um element protects valve seals.
Mounted ahead of a CNC machine tool's pneumatic circuit, it delivers clean, regulated air to clamps, tool changers and purge lines, with the check valve holding downstream pressure if the main supply dips.
Size and port set the capacity: this is the 600 size with a 3/4 in NPT port, the largest step in the GFR range, chosen when the line demands the higher flow of the bigger body. Drain type is a real choice: automatic (this unit) drains itself, manual suits attended installations, and differential-pressure drain is the default. Filter grade is 40 um standard; specify W for a 5 um element where finer filtration is needed. The gauge here is the embedded square type with a bar scale; MPa, psi and an external round gauge are alternatives. Thread is NPT on this unit, with PT as the standard and G (BSPP) available to order. A J code means no bracket; order the bracket variant if panel or wall mounting is needed. Flow is published as curves, not a single rating, so 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. 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, regulated set point and expected air demand, and we will confirm sizing from the datasheet curves on request before you order.
The A in the code means an automatic drain: collected condensate is expelled without anyone opening the bowl, which suits unattended or high-humidity installations. Manual and differential-pressure drain variants exist across the GFR range, and the filter grade (40 um standard, 5 um with code W), gauge scale and thread (PT standard, G or NPT to order) are also selectable when you specify the model.
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.