The AirTAC GFR600-20 AirTAC Low-Pressure Filter Regulator 3/4 NPT is a genuine G-series filter regulator: water separation, 5 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 GFR600-20 is a filter regulator: water and particulate filtration plus pressure regulation built into one body with a single drain bowl. This 600-size unit is threaded 3/4 in NPT and carries the automatic drain (code A), so collected condensate is expelled without anyone opening the drain. The 5 um filter element (code W) gives finer filtration than the standard 40 um element, the regulator is the low-pressure type, a square pressure gauge scaled in MPa is fitted, and a reverse/check valve (code K) is included. No mounting bracket is supplied with this code. The bowl on this 600-size unit is aluminium alloy, the working temperature range is -5 to 70 C (non-freezing), and the maximum inlet pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR family is published in 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, and with choices of drain type, 40 um or 5 um filtration, gauge style and scale, PT, G or NPT thread, bracket and reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and flow figures for your application before ordering.
| Model | GFR600-20 AirTAC Low-Pressure Filter Regulator 3/4 NPT |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Feeding case sealers, carton tapers and wrapper actuators from a 3/4 in main, where one body filters the supply and holds the downstream pressure the machines were set up for, with the automatic drain clearing condensate at the drop.
Supplying filtered, regulated air to pallet clamps and tool-change actuators, with the 5 um element protecting close-tolerance directional valves from particulate carryover.
Regulating air to diverters, stoppers and lift-and-locate units along a sorting line, with the 3/4 in port matching the main run and the automatic drain handling moisture at each take-off.
The real choices within GFR are the size and port (200/300/400/600, 1/8 in to 1 in), which you step up against the air demand of the circuit; the drain (differential-pressure as the default, automatic with code A, or manual with code M); the filter grade (40 um standard, 5 um with code W where finer filtration is needed); the gauge (embedded square as standard, external round optional, scaled in MPa, psi or bar); the thread (PT is the standard, with G and NPT as catalogue options); and the bracket. This code carries the 5 um element, automatic drain, low-pressure regulator, square MPa gauge, reverse/check valve and no bracket, on a 3/4 in NPT port. Because flow is published as curves and not as a single rating, send us your application's air demand 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes GFR flow as curves rather than a single rated figure, so we do not quote a number here. Send us your application's air demand and we will confirm the flow and full datasheet figures for this 3/4 in unit on request.
This code is the low-pressure type (code L), and the exact adjustment range for the low-pressure type is not published on the sheet we work from, so we confirm it on request. The maximum inlet pressure is 1.0 MPa (145 psi), and the unit works from -5 to 70 C, non-freezing.
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.