The AirTAC GFR600-20 AirTAC Filter Regulator 3/4 in PT, Manual 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 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: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 600 unit is specified with a 3/4 in PT port, a manual drain for emptying the bowl, the standard 40 um filter element, a round pressure gauge reading in psi, and a reverse/check valve fitted to hold the set pressure against backflow. As a size 600 unit, the bowl is aluminium alloy. Maximum inlet pressure is 1.0 MPa (145 psi), the standard-type regulator adjusts from 0.05 to 0.9 MPa (7-130 psi) with manual drain, and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of PT, G or NPT thread, manual, automatic or differential-pressure drain, a 5 um element option, gauge or no gauge, and bracket options. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR600-20 AirTAC Filter Regulator 3/4 in PT, Manual Drain |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — round, 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 0.05 - 0.9 MPa (7 - 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (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. |
| (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) |
Installed at a 3/4 in main air drop serving a production hall, the GFR600-20 removes water and pipe scale from the compressed air and lets maintenance set a stable working pressure for the tools and actuators on that branch.
On a packaging line with air cylinders driving conveyor gates and pushers, the unit filters the supply and holds the regulated pressure the cylinders were sized for, while the check valve helps the set pressure persist against upstream fluctuation.
Feeding a manifold of directional control valves on a machine skid, the filter regulator conditions the air before it reaches the valves and gives the commissioning engineer a psi gauge to set and verify the operating pressure at the skid.
Size and port set the capacity of the unit: step up through 200, 300, 400 and 600 as your line's air demand grows, and match the port to your piping - here 3/4 in PT (G and NPT threads are order options). With manual drain, someone opens the drain at the bowl to discharge collected water, which suits attended installations; choose automatic or differential-pressure drain where unattended operation matters. The standard 40 um element covers general plant air; specify the W code for the 5 um grade where finer filtration is needed. The round gauge here reads in psi, with MPa and bar scales also available, and the K code adds a reverse/check valve. A mounting bracket is included.
Flow for this family is published as curves, not a single rated number, so we do not quote a rated flow figure. Send us your application's 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 flow for the GFR series as curves, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Tell us your application's air demand and we will confirm the sizing against the datasheet on request before you order.
The M code in GFR60020MC2K specifies a manual drain: collected water is discharged by opening the drain on the bowl, which suits installations that are checked regularly. If you need unattended water removal, the same size 600 filter regulator can be ordered with an automatic (A) or differential-pressure (blank) drain instead.
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.