The AirTAC AirTAC GFR600-20 Filter Regulator 3/4" NPT 5 um Auto Drain 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 is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This GFR600-20 is built with a 3/4 in NPT port, a 5 um filter element for finer filtration than the standard 40 um grade, an automatic drain that expels collected condensate without manual attention, an embedded square gauge reading in bar, and a reverse (check) valve fitted. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and the unit is supplied without a mounting bracket.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, a choice of automatic, manual or differential-pressure drains, 40 um or 5 um elements, gauge scale options and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The size 600 bowl is aluminium alloy. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application.
| Model | AirTAC GFR600-20 Filter Regulator 3/4" NPT 5 um Auto Drain |
|---|---|
| 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 | 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, bar 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. 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 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) |
Installed at a main air drop in a manufacturing plant, this unit filters water and pipe scale out of the compressed air supply and holds a steady regulated pressure for the tools and cylinders served by that drop, with the automatic drain handling condensate so nobody has to bleed the bowl by hand.
On a water treatment or process skid, quarter-turn pneumatic actuators need clean, dry air at a fixed pressure to open and close reliably. This filter regulator conditions the actuator supply line, and the fitted check valve holds the set pressure against upstream fluctuation.
On a bottling or cartoning conveyor, the clamp, pusher and stopper cylinders behave erratically when supply pressure drifts or the air is wet. This 3/4 in unit at the line's take-off keeps the pressure constant and the 5 um element protects the cylinder seals, while the bar gauge gives operators a clear set-point reading.
Step up through the GFR sizes (200, 300, 400, 600) and their ports (1/8 to 1 inch) until the port and body match your line size; the exact flow figure is published as a curve, not a single rating, so let us check it against your air demand before you order. Choose the drain to suit access: automatic here means no manual draining, manual suits attended installations, and differential-pressure drain suits steady flow and pressure drop. Pick 40 um for general protection or 5 um (this unit, code W) where finer filtration matters. Gauge scale is selectable (MPa, psi or bar - bar here), thread is PT as standard with G and NPT as order options (NPT here), and a mounting bracket can be specified if you need one - this configuration omits it.
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 flow for the GFR series as curves in the catalogue rather than a single rated figure, so we do not quote one number. Send us your line pressure and air demand and we will confirm from the datasheet whether this 3/4 in unit is correctly sized for your application before you order.
The automatic drain expels collected condensate from the aluminium alloy bowl on its own, which suits installations that are not checked daily. Manual-drain and differential-pressure-drain versions of the same size are available if you prefer; note that on manual-drain versions the regulator adjustment range widens to 0.05-0.9 MPa (7-130 psi), compared with 0.15-0.9 MPa (20-130 psi) on this automatic-drain unit.
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.