The AirTAC GFR600-20AF2T 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 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 AirTAC GFR600-20AF2T is a size-600 filter regulator that removes water and particulate from compressed air and holds downstream pressure steady in a single body. This configuration is fitted with a 3/4 in NPT port, an automatic drain that expels collected condensate without manual attention, a 40 um standard filter element, an aluminium alloy bowl, and an embedded square gauge reading in psi. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulation range is 0.15-0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options include a 5 um element (code W), manual or differential-pressure drain, MPa or bar gauge scales, an external round gauge, G (BSPP) or PT threads, and a reverse/check valve. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR600-20AF2T AirTAC Filter Regulator NPT3/4 Auto Drain |
|---|---|
| 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 | 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 | Automatic drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, psi 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. |
|---|---|
| 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 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. |
| (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 · PT3/4" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Installed at the 3/4 in branch feeding a CNC machining cell, it removes condensed water and pipe scale from the shop air and holds a steady regulated pressure to the machine's pneumatic valves and clamps.
Mounted ahead of the valve manifold on a carton-forming and sealing conveyor, it conditions the supply air and keeps actuator pressure consistent through the shift, with the automatic drain handling condensate on a line that is not visited daily.
Placed on the header feeding air knives and blow-off nozzles on a cleaning or drying station, it filters incoming compressed air and lets operators set the header pressure to suit the job.
Start with the port and size: the 600 frame steps up to a 3/4 in NPT connection, so match it to the main line serving your air-preparation point rather than to an individual drop. Choose the drain to suit access: automatic (this model) suits installations that are not checked daily, manual suits attended stations, and differential-pressure drain purges on a pressure drop. The 40 um element is the standard grade; specify the 5 um W option where downstream equipment needs finer filtration. The embedded square gauge here reads in psi; MPa and bar scales are available, and an external round gauge is an option. PT is the standard thread, with G (BSPP) and NPT (this model) as orderable options, and a mounting bracket is included. Because flow is published as curves rather than a single rated figure, send us your application details and we will confirm sizing against the datasheet 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 GFR600 series as curves, not as a single rated figure, so we do not quote a number. Tell us your line pressure, working pressure and expected air demand, and we will confirm the flow from the datasheet for your application on request.
The A in the code GFR600-20AF2T means the bowl drain expels collected condensate automatically, which suits installations that are not checked every day. A manual drain (code M) is chosen where an operator is present to open the drain at intervals, and the default differential-pressure drain purges when the pressure drop across the element rises.
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.