The AirTAC GFR600-20T AirTAC Filter Regulator NPT3/4, 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 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 GFR600-20T is a size 600 filter regulator: water and particulate removal plus downstream pressure regulation in a single body. This configuration is threaded NPT3/4 (3/4 in), carries the standard 40 um filter element, and uses a manual drain, so the aluminium alloy bowl is emptied by hand as part of routine maintenance. The standard regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi), and the embedded square gauge is supplied in the bar scale, with an external round gauge available as an option. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). A mounting bracket is included.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600, with port sizes from 1/8 to 1 inch, PT as the standard thread and G or NPT as order options, a choice of differential-pressure, automatic or manual drain, a 5 um element option (code W), and gauge scales in MPa, psi or bar. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application on request.
| Model | GFR600-20T AirTAC Filter Regulator NPT3/4, Bar Gauge |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT 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 — 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 0.05 - 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). |
| 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) |
Dropping a regulated take-off from the main header to feed a CNC machining cell: the GFR600-20T removes carryover water from the 3/4 in drop line and holds a steady setting for the cell's pneumatic actuators.
Feeding the pneumatic cylinders and diverters on a packaging conveyor: the 40 um element stops pipe scale and condensed water reaching the valves, while the regulator keeps cylinder pressure consistent across the shift.
Supplying 3/4 in tool-air drops at an assembly plant: the unit cleans the supply ahead of impact drivers and clamps and lets each station set its own pressure independently of the header, with the bar gauge read at a glance.
Start with the port step: this unit is size 600 with NPT3/4 ports, the largest published size in the GFR range, so step down to GFR200/300/400 if your line size and air demand are smaller. Choose the drain to match the installation: manual (this unit) suits attended installations where someone drains the bowl on a schedule, automatic suits unattended or hard-to-reach positions, and differential-pressure is the catalogue default. The 40 um element is standard; specify the W code for the 5 um grade where downstream equipment needs finer filtration. Gauge scale (MPa, psi or bar) and thread (PT standard, G or NPT to order) are selected by code, and a bracket is included with this unit.
One honest note on sizing: AirTAC publishes flow for this series as curves, not as a single rated number, so we do not quote a flow figure here. Send us your application details and we will confirm the sizing against the datasheet curves 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 GFR series as performance curves rather than a single rated figure, so we do not quote a l/min or SCFM number on the page. Tell us your line size and air demand and we will confirm the sizing against the datasheet curves on request before you order.
The M in the code means the aluminium alloy bowl is drained by hand, which suits attended installations where someone opens the drain as part of routine maintenance. The catalogue also offers an automatic drain (code A) and a differential-pressure drain as the default, and with a manual drain the regulator adjustment range is 0.05-0.9 MPa (7-130 psi).
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.