The AirTAC GFR600C20ALF3WTK AirTAC Filter Regulator NPT3/4 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 GFR600C20ALF3WTK is a size 600 filter regulator: water and particulate filtration plus pressure regulation in a single body. This configuration is built for a 3/4 in NPT port, carries the optional 5 um filter element (code W) instead of the 40 um standard, and uses an automatic drain so condensate is expelled without manual attention. The regulator is the low-pressure type, a square gauge with a bar scale is fitted, and a reverse (check) valve is included. As a size 600 unit, 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. A mounting bracket is included.
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 including manual or differential-pressure drains, the 5 um element, gauge scales in MPa, psi or bar, G (BSPP) or NPT threads in place of the PT standard, and low-pressure regulation. Flow is published as curves rather than a single rated figure, so we confirm flow and other datasheet figures on request before you order.
| Model | GFR600C20ALF3WTK AirTAC Filter Regulator NPT3/4 |
|---|---|
| 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) |
Feeding filtered, regulated air to the clutch, brake and counterbalance circuits of a mechanical stamping press, where the 5 um element guards directional valves against particulate and the automatic drain clears condensate from a high-duty air line.
Conditioning the instrument-air supply to pneumatic control valve positioners in a process plant, combining water and particulate removal with low-pressure regulation suited to positioner set points, monitored on the fitted bar-scale gauge.
Supplying the cylinder and actuator banks of a bottling or carton sortation conveyor, where the check valve holds the downstream circuit and the automatic drain keeps condensate out of the valves on a continuously running line.
Size 600 with a 3/4 in port sits at the top of the GFR range, so start by matching the port step to the air demand of the circuit rather than to a single flow figure. This unit is already specified with the 5 um element (choose 40 um where only coarse protection is needed) and the automatic drain (manual or differential-pressure drains are the other decodable choices). The square gauge is fitted with a bar scale; MPa or psi scales and an external round gauge are alternatives. Thread here is NPT; PT is the catalogue standard and G (BSPP) is also orderable, so pick the thread that matches your pipework. A bracket is included, and the reverse (check) valve is fitted on this code. Because flow is published as curves and not as a single rating, ask us to confirm sizing against your application and the low-pressure setting range 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 rather than a single rated figure, so no single flow number can be quoted here. Tell us your application and operating pressure and we will confirm the flow figures from the datasheet on request before you order.
W is the filter grade: the optional 5 um element instead of the 40 um standard. A is the automatic drain, which expels condensate without manual intervention (the alternatives are manual and differential-pressure drains). K means a reverse (check) valve is fitted. All three are read directly from the model code.
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.