The AirTAC GFR600-20G AirTAC Filter Regulator 3/4in G-Thread 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 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 GFR600-20G is a size-600 filter regulator that removes water and particulate from compressed air and holds downstream pressure steady in one body. This configuration has G3/4 (BSPP) ports, a differential-pressure drain that bleeds collected condensate automatically whenever the pressure drop across the element is high enough, and the standard 40 um filtration element. A round pressure gauge with a psi scale is fitted so the regulated outlet pressure can be read directly, and the 600-size bowl is aluminium alloy.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with port options, manual or automatic drain variants, a 5 um (W) filter grade, alternative gauge scales, and PT or NPT thread versions available to order. Rated flow is published as curves rather than a single figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR600-20G AirTAC Filter Regulator 3/4in G-Thread |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (G (BSPP) 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 — round, 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". |
| (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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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. |
| G | G (BSPP) 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) |
Feeds clean, pressure-stabilised air to the pneumatic clamps and tool-change actuators on a CNC machining centre, with the round psi gauge letting the setter verify set pressure at the machine.
Prepares the air feeding carton-forming and case-sealing cylinders on a packaging line, filtering out water and pipe scale while holding a constant regulator setting through the shift.
Installed as the point-of-use filter regulator on a 3/4-inch plant air drop serving a row of assembly benches, protecting downstream air tools and cylinders from condensate and debris.
Start with the port and size step: 200, 300, 400 and 600 move up in port size and flow capacity, so size the unit against the air demand of the circuit rather than the pipe alone. Choose the drain: differential-pressure (this unit) drains on pressure drop, automatic (A) drains continuously, and manual (M) needs operator attention. Choose the filter grade: 40 um standard for general air prep, 5 um (W) where finer particulate removal matters. Gauge scale can be MPa, psi (this unit, round gauge) or bar, and thread is PT standard with G and NPT as order options; a mounting bracket is optional (this unit ships without one).
Because flow is published as curves and not a single rated number, send us your air demand and line conditions and we will confirm the correct size 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 number, so we do not quote a l/min, m3/h or SCFM figure. Send us your air demand and line pressure and we will confirm the sizing from the datasheet on request.
This unit's differential-pressure drain opens to expel collected condensate when the pressure drop across the filter element builds up, with no operator input. If you want continuous draining choose the A (automatic) variant, or the M (manual) variant where an operator can drain the bowl on a schedule; both are order options in this series.
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.