The AirTAC GFR600-20T AirTAC Filter Regulator NPT3/4, 5 um, bar 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 GFR60020MLF3WTK is a GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure in a single body. This size-600 unit is supplied in NPT3/4 (3/4 in) thread, with a 5 um filter element (code W), a manual drain, the low-pressure regulator type, an embedded square gauge scaled in bar, and a reverse (check) valve fitted. The aluminium alloy bowl suits the largest frame in the range, a mounting bracket is included, maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, in PT (standard), G and NPT thread, with drain, filter-grade, gauge-scale and reverse-valve options to tailor the unit. Rated flow is published as curves rather than a single figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR600-20T AirTAC Filter Regulator NPT3/4, 5 um, bar |
|---|---|
| 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 | 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. |
| 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. |
| 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) |
Clean, pressure-held air for the grip and lift cylinders on a bottling line, with the 5 um element protecting seals from water and fine debris in a humid washdown environment.
A regulated air feed for quarter-turn pneumatic valve actuators on a process skid, where the low-pressure regulator type and bar-scaled gauge suit a setpoint well below full line pressure.
Filtered and regulated air for stopper, clamp and divert cylinders along a conveyor line, with the check valve holding the downstream circuit if upstream supply dips.
Size and port set the flow path: this unit is size 600 in NPT3/4 (3/4 in), the top of the 200/300/400/600 ladder, so step up or down to match your line. Drain choice matters: a manual drain needs periodic bleeding of the bowl, while automatic and differential-pressure types drain themselves. Filter grade is 40 um standard or 5 um (code W) where finer particulate capture is needed. Gauge scale is selectable (MPa, psi or bar) with the square gauge embedded as standard and an external round gauge optional; a reverse/check valve and bracket options are also available. Thread is PT as the standard, with G and NPT as catalogue options to order. 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. 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 number here. Tell us your line pressure, setpoint and expected air demand, and we will confirm the sizing against the datasheet curves on request before you order.
The M in the code selects a manual drain: water and particulate collect in the aluminium alloy bowl and someone must open the drain periodically to bleed it off. If you would rather not rely on a routine, the same unit can be ordered with an automatic drain (code A) or the default differential-pressure 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.