The AirTAC GFR600-20MLF1WT AirTAC Filter Regulator NPT3/4 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 GFR600-20MLF1WT is a filter regulator: water and particulate removal plus downstream pressure regulation in a single 600-size body. This configuration is built for a 3/4 in NPT port, carries the finer 5 um filter element (W grade) instead of the standard 40 um, and drains by hand through its manual drain - you open it as part of your maintenance routine rather than relying on an automatic mechanism. It is the low-pressure type (L), fitted with the embedded square gauge reading in MPa, and includes a mounting bracket. Because this is size 600, the bowl is aluminium alloy rather than polycarbonate.
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 up to 1 in, and options for automatic or differential-pressure drains, 40 um or 5 um elements, gauge scale choices, and PT, G or NPT threads. Published flow data appears as curves rather than a single rating, so contact us and we will confirm the datasheet figures for your application before you order.
| Model | GFR600-20MLF1WT AirTAC Filter Regulator NPT3/4 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 | 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. |
| (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. |
| (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) |
Feeding instruments and test fixtures that need both clean, finely filtered air and a controlled, lower supply pressure, with the MPa gauge giving a clear local reading at the rig.
Conditioning the air going to clamps and light pressing stations on a production cell, where the 5 um element protects close-tolerance cylinders and the regulator holds the working pressure steady.
Supplying filtered, regulated air to packaging machinery actuators and diverters, with the manual drain opened during scheduled line cleaning and the bracket simplifying panel mounting.
Start with the port step: this unit is the 600 size with a 3/4 in NPT port, the largest in the GFR range - step down to 200/300/400 sizes with smaller ports if your line is lighter duty, and match the size to the flow your circuit actually needs. Drain type is a real decision: manual (as here) gives you control and suits installations checked on a schedule, while automatic and differential-pressure drains suit unattended duty. The 5 um element (W code) is the right pick when downstream equipment is sensitive to finer particles; the 40 um standard element suits general protection. Gauge scale can be ordered in MPa, psi or bar, and thread options are PT (standard), G or NPT. 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. 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 curves rather than a single rated figure, so we do not quote one number. Send us your application details and we will confirm the datasheet flow figures for this 600-size unit so you can check it against your demand before ordering.
The M in the code means the bowl drains by hand: an operator opens the drain during maintenance instead of the unit ejecting condensate automatically. It suits installations that are checked on a regular schedule. If you need unattended condensate removal, the GFR series is also available with automatic or differential-pressure drains - ask us for those variants.
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.