The AirTAC GFR600-20 AirTAC Filter Regulator NPT 3/4, 5 um, Bar Gauge 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 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 holds downstream pressure in a single body. This 600-size unit is threaded NPT 3/4 in, is the low-pressure regulator type, and carries a 5 um filter element with a manual drain. The aluminium alloy bowl suits larger installations, the embedded square gauge is scaled in bar, and the maximum inlet pressure is 1.0 MPa (145 psi) with an operating temperature of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR series spans sizes 200 to 600 with ports from 1/8 to 1 in, and options include 40 um or 5 um filtration, manual, automatic or differential-pressure drains, square or round gauges with MPa, psi or bar scales, and G or NPT threads in place of the PT standard. Flow is published as curves rather than a single rating, so we confirm datasheet figures on request.
| Model | GFR600-20 AirTAC Filter Regulator NPT 3/4, 5 um, Bar Gauge |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Low-pressure 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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)). |
| L | Low-pressure 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. |
| (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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Conditioned air feeding spray-booth tooling: the 5 um element strips water and fine particulate before the air reaches the guns, while the low-pressure regulator holds a gentle, steady supply pressure for finishing work.
Point-of-use supply for machine-tool air circuits such as clamps and tool changers, where filtered, regulated air at a controlled low setting protects actuators and valves on the shop floor.
Air for conveyor diverters and capping heads on a packaging line, with the 3/4 in port serving the larger distribution leg and the manual-drain bowl emptied during scheduled line cleaning.
Size 600 is the largest GFR frame, here with a 3/4 in NPT port; step down through 400, 300 and 200 as your flow demand falls. This unit pairs a 5 um element (the 40 um standard is also available) with a manual drain - choose automatic or differential-pressure draining where the bowl cannot be drained by hand on a schedule. The low-pressure regulator type suits circuits working below standard settings; its exact range is not published, so we confirm it on request. The square gauge is scaled in bar, with MPa and psi scales and a round gauge available as options, and G or NPT threads can be ordered instead of the PT standard; the J code means no mounting bracket is fitted. Because flow is published as curves, not a single rating, 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 application details and we will confirm the flow and the full datasheet figures for this unit on request.
The M in the code specifies a manual drain: condensate collected in the aluminium alloy bowl is released by hand as part of routine maintenance. If the unit will be mounted somewhere it cannot be drained regularly, ask us about the automatic or differential-pressure drain options for this series.
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.