The AirTAC AirTAC GFR600-20T Filter Regulator NPT3/4 Low-Pressure 5um 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 GFR600-20T is a genuine AirTAC filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This size-600 unit is fitted with a 3/4 in NPT port, a 5 um filter element (code W), a manual drain on the aluminium alloy bowl, and a low-pressure regulator type. It ships as configured with an embedded square gauge scaled in MPa, a reverse/check valve, and a mounting bracket.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of 40 um or 5 um filtration, differential-pressure, automatic or manual drains, gauge and thread options, and standard or low-pressure regulation. Flow is published as curves rather than a single rating, so we confirm flow and datasheet figures on request.
| Model | AirTAC GFR600-20T Filter Regulator NPT3/4 Low-Pressure 5um |
|---|---|
| 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, MPa 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. 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 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. |
| 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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Filtering and regulating the air supply to low-pressure actuators and gripper circuits on a packaging line, with the 5 um element protecting downstream valve seats from water and particulate.
Conditioning the air feeding spray guns and low-pressure applicators in a paint or coating booth, where clean, dry, steadily regulated air protects the finish quality.
Supplying filtered, regulated low-pressure air to looms and knitting machines, where the manual drain supports a scheduled end-of-shift bowl drainage routine.
Size and port step up with required flow: this is the largest GFR frame at 3/4 in NPT, so match it to the branch or machine supply it will feed. The 5 um element (W code) suits air that feeds sensitive valves, instruments or finishing equipment; the 40 um standard element is the general-purpose choice. The manual drain means an operator drains the bowl on a scheduled basis - choose the automatic or differential-pressure drain variant if the installation is unattended. The low-pressure regulator type is selected where the circuit runs at reduced pressure; confirm the exact low-pressure range with us before ordering. The square MPa gauge is fitted as standard; external round gauges in MPa, psi or bar scales are optional. PT is the standard thread, with G (BSPP) and NPT available as catalogue options - this unit is ordered in NPT. A mounting bracket is included.
Flow for this series is published as curves, not a single rated figure, 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. 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 rather than a single rated figure, so no single flow number can be quoted. Send us your application details and we will confirm the flow and datasheet figures for this exact configuration on request.
The M in the code selects a manual drain: an operator opens the bowl drain on a scheduled basis instead of relying on an automatic or differential-pressure mechanism. The L in the code selects the low-pressure regulator type, intended for circuits that run at reduced pressure; the exact low-pressure range is not published in the standard tables, so confirm it with us before ordering.
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.