The AirTAC GFR600-20 AirTAC Filter Regulator PT3/4 Auto Drain 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 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: one body that removes water and particulate from compressed air and holds downstream pressure steady. This size-600 unit carries a 3/4 in PT port, a 40 um standard filter element, and an automatic drain that expels collected condensate without anyone opening the bowl. The bowl on this 600 size is aluminium alloy. Regulation is the standard type with an adjust range of 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C (non-freezing). An embedded square gauge reading in psi is fitted, and the K code means a reverse/check valve is included; a mounting bracket comes with the unit.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, an optional 5 um element (code W), gauge scales in MPa, psi or bar, and G (BSPP) or NPT threads as order options. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR600-20 AirTAC Filter Regulator PT3/4 Auto Drain |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (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 | Automatic drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, psi 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. 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. |
| (blank) | PT 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" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Point-of-use air preparation for a CNC machining center: the GFR600-20 strips water and chips-laden particulate from the shop air and holds a steady regulated pressure to the machine's pneumatic circuits, with the automatic drain handling condensate on a cell that runs unattended.
Filtered, regulated air for the cylinders and actuators on a packaging or case-sealing conveyor line. The 3/4 in PT port and 600-size body suit a line header feed, while the check valve holds set pressure if the upstream supply dips.
Air preparation ahead of a pneumatic valve manifold on an automated process skid: the 40 um element protects solenoid valves from water and debris, and the regulator keeps actuator pressure within the 0.15-0.9 MPa (20-130 psi) adjust range.
Start with the port step: sizes 200 to 600 step up in port and flow capacity, and this 600 size sits at the 3/4 in PT end of the range, so match it against the air demand of the circuit it feeds. Choose the drain next: automatic drain (this unit) suits points that are hard to reach or run unattended, manual drain suits attended stations, and differential-pressure drain is the catalogue default. Filter grade is 40 um standard here; specify 5 um (code W) where finer particulate removal matters. The fitted square gauge reads in psi, and MPa or bar scales are available instead. Thread is PT as standard, with G (BSPP) and NPT as order options, and a bracket is included.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, so we cannot quote you a rated flow figure. Send us your application details and we will confirm the datasheet curves against your required flow 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 flow for the GFR family as performance curves rather than a single rated figure, so we do not quote a rated flow number. Tell us your line pressure and the air demand of the equipment you are feeding, and we will confirm the datasheet curve figures for the GFR600-20 on request before you order.
The automatic drain on this GFR600-20 expels collected condensate from the aluminium bowl on its own, which suits installations that run unattended or are awkward to reach. The family also offers a manual drain and a differential-pressure drain (the catalogue default), so you can pick the drain style that matches how the point of use is actually maintained.
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.