The AirTAC GFR600-20 AirTAC Filter Regulator, NPT 3/4 in, Bar Gauge 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 GFR600-20 is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This size 600 unit has 3/4 in NPT ports, a 40 um filter element, a differential-pressure drain and an aluminium alloy bowl. The standard regulator covers 0.15-0.9 MPa (20-130 psi), and the embedded square gauge reads in bar. No mounting bracket is fitted and no reverse/check valve is included.
This is a genuine AirTAC part. The GFR family runs from size 200 to 600 with ports from 1/8 to 1 in, and options include automatic or manual drains, a 5 um element (code W), MPa, psi or bar gauge scales, G or NPT threads and a mounting bracket. Flow for this family is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet values for your application.
| Model | GFR600-20 AirTAC Filter Regulator, NPT 3/4 in, Bar Gauge |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT 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 — square, bar 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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) |
Point-of-use water removal and steady regulated pressure for CNC machine tools and pneumatic clamps fed from a 3/4 in machining-cell air drop.
Clean, regulated air for cylinder-driven filling, capping and sorting stations on a bottling or packaging line supplied at 3/4 in.
Water and particle removal plus a set working pressure for spray guns and air-assisted applicators in a finishing booth.
Choose the size and port against the flow your line needs: GFR600 with 3/4 in NPT ports sits at the top of the range for higher-demand drops. Pick the drain: differential-pressure (this unit), automatic for unattended condensate discharge, or manual where you drain by hand. The 40 um element is standard; specify 5 um (code W) for finer filtration. Gauge scale is selectable - this unit reads bar, with MPa or psi available - and an external round gauge is an option. Thread is NPT here; PT (standard) and G are order options, and a mounting bracket can be added. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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 GFR flow as curves rather than a single rated figure, so we do not quote a number here. Send us your flow and pressure requirements and we will confirm sizing from the datasheet on request.
This unit has the differential-pressure drain, the standard choice. Automatic drains discharge condensate without attention, while manual drains are emptied by hand. Note the regulation range differs by drain: 0.15-0.9 MPa (20-130 psi) with automatic or differential-pressure drains, and 0.05-0.9 MPa (7-130 psi) with a manual drain.
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.