The AirTAC GFR600-20NWTK AirTAC Filter Regulator NPT3/4 5 um 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 differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR600-20NWTK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This 600-size unit has 3/4 in NPT ports, a 5 um filter element (the finer of the two published grades), a differential-pressure drain on the bowl, and a built-in reverse/check valve that holds downstream pressure when the supply is lost. No gauge is fitted with this code, so add your own if you need to read the set pressure. The bowl on this size is aluminium alloy, and a mounting bracket is included.
This is a genuine AirTAC part from the GFR filter-regulator line, which spans sizes 200, 300, 400 and 600 with port options from 1/8 to 1 in, a choice of 40 um or 5 um filtration, manual, automatic or differential-pressure drains, and optional gauge and thread variants. Maximum inlet pressure is 1.0 MPa (145 psi) and the standard regulation range with a differential-pressure drain is 0.15-0.9 MPa (20-130 psi). Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application.
| Model | GFR600-20NWTK AirTAC Filter Regulator NPT3/4 5 um |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Not fitted |
| 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 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". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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) |
Installed at the 3/4 in main drop feeding a production cell, it removes line water and particulate and holds a steady regulated pressure to the cell's air tools and actuators, with the check valve holding the circuit if the main supply dips.
Mounted on the supply line to conveyor diverters, sorters and gate cylinders, it cleans the air feeding the valves and cylinders and keeps their operating pressure stable through the shift.
Fitted in a machine builder's pneumatic panel ahead of the directional valves, it conditions the incoming air to 5 um and lets the panel run at its own set pressure independent of the shop main, with the bracket simplifying panel mounting.
Size and port: the 600 body with 3/4 in NPT ports is the largest GFR step, so match it against the air demand of the circuit - the published flow curves, not a single rated number, are the honest basis for that comparison, and we will confirm the curve data on request. Filtration: this code carries the 5 um element (code W); the 40 um standard element suits general lines, while 5 um suits points where finer water and particulate removal matter. Drain: the differential-pressure drain bleeds the bowl automatically as flow passes, with no manual intervention in normal operation. Thread: NPT is fitted here; PT is the catalogue standard and G (BSPP) is also orderable. A mounting bracket is included, and no gauge is supplied with this code - order a gauge variant if you need a local pressure reading.
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 GFR600 series as curves, not as a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the datasheet curve and sizing against it before you order.
Code W selects the 5 um element, the finer of the two published grades (40 um is the standard), for points that need cleaner air than a general supply line. Code K means a reverse/check valve is fitted, which holds downstream pressure if the upstream supply is interrupted.
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.