The AirTAC GFR600C20AF3WTK 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 GFR600C20AF3WTK is a filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This size 600 unit is built around a 3/4 in NPT port and carries the 5 um filter element (code W) for finer cleaning than the standard 40 um grade. The automatic drain expels collected condensate without manual attention, the metal bowl (aluminium alloy at size 600) suits demanding installations, and the embedded square gauge reads outlet pressure in bar. The fitted reverse/check valve holds the downstream setting if the upstream supply is removed, and a mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator covers 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 from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in. Across the series you can order manual or differential-pressure drains, the 40 um standard element, alternative gauge scales (MPa, psi or bar), G (BSPP) or NPT threads in place of the PT standard, and units without a bracket or gauge. We confirm flow and other datasheet figures on request, because AirTAC publishes flow as curves rather than a single rating.
| Model | GFR600C20AF3WTK 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) |
Installed at the point where the 3/4 in header drop serves a production department, cleaning the compressed air of water and debris and setting a stable working pressure for every downstream task on that line.
Feeding a machining centre's pneumatic circuits - tool clamp, chip gates and air blast - where the 5 um element protects tight valve tolerances and the regulator holds a consistent set pressure for repeatable clamping.
Placed ahead of the valve bank and cylinders on a packaging or conveyor line, conditioning the air and regulating pressure so diverters, pushers and stopper cylinders run at their designed setting through every shift.
Start with the port: this unit steps up to 3/4 in NPT within the largest GFR size (600), the right choice when your line or machine drop is sized for higher air demand - match the size and port step to the flow your application needs rather than to pipe diameter alone. On drain, the automatic version here drains itself; choose manual where an operator is always on hand, or the differential-pressure default where you want drainage tied to flow. On filtration, 40 um is the standard element and this unit's 5 um (W) element suits finer downstream needs; anything finer still needs a separate precision filter. Gauge scale (MPa, psi or bar), thread (PT standard, G or NPT to order), bracket and the reverse/check valve are all decodable options - this configuration ships with a bar-scale square gauge, NPT thread and the check valve fitted. One honest note: AirTAC publishes flow as curves, not a single rated figure, so ask us to confirm sizing against your application 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 characteristic curves, not as a single rated number, so we do not quote a figure here. Tell us your application and required flow and we will confirm the sizing from the datasheet curves on request before you order.
Both are read straight from the code. The A gives the automatic drain, which expels collected condensate from the bowl without an operator, unlike the manual (M) or differential-pressure (blank) options. The K fits a reverse/check valve, which holds the downstream pressure setting if the upstream supply is shut off. Note that with an automatic drain the regulation range is 0.15-0.9 MPa (20-130 psi); the wider 0.05-0.9 MPa range applies to manual-drain versions.
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.