The AirTAC GFR600-20MLJF1WTK AirTAC Filter Regulator NPT3/4 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 GFR600-20MLJF1WTK is a size-600 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built for a 3/4 in NPT port, carries a fine 5 um filtration element (the tighter of the two catalogue grades), drains by hand through its manual drain, and is the low-pressure regulator type. It ships as coded with a square pressure gauge reading in MPa, a reverse/check valve fitted, and no mounting bracket, so plan your panel or manifold fixing accordingly.
This is a genuine AirTAC part in the largest GFR frame, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in up to 1 in, PT as the standard thread and G or NPT as order options, and a choice of drain types, filtration grades, gauge styles and scales. Because flow is published as curves rather than a single rated figure, we confirm the datasheet and sizing figures for your application on request.
| Model | GFR600-20MLJF1WTK AirTAC Filter Regulator NPT3/4 |
|---|---|
| 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. |
| J | Supplied without bracket. |
| (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) |
Feeds filtered, regulated air to weaving lines that run at low supply pressure, where the fine 5 um element protects jet nozzles from particulate and the manual drain supports a supervised maintenance round.
Conditions the air feeding bench-top test rigs and pilot equipment that operate at reduced pressure, giving technicians a local MPa gauge, fine filtration and a check valve to hold the circuit on air loss upstream.
Serves as the conditioning and regulation point on a clamping or fixture manifold supplied from a reduced-pressure circuit, with the 3/4 in NPT port matching the main drop and the check valve preventing backflow.
Size 600 with a 3/4 in port is the right step when your line's flow demand sits at the top of the GFR range; step down to 300/400 with a smaller port if your consumption is modest, since the port and body size should match the air demand rather than the pipe nominal size. The 5 um element (code W) suits downstream equipment sensitive to fine particulate; the 40 um standard element is the choice for general protection. Manual drain means an operator opens the bowl drain during checks - choose automatic or differential-pressure drain codes if the unit is mounted where routine bleeding is impractical. The low-pressure regulator type is intended for applications running below standard regulating ranges; ask us for the exact published range before ordering. The fitted square gauge reads MPa; psi or bar scales and an external round gauge are order options. NPT is the thread coded here (PT is standard, G is available), the check valve is fitted, and no bracket is included - add a bracket code if you need panel mounting. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before you order.
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 rather than a single rated number, so we do not quote a l/min, m3/h or SCFM figure. Tell us your working pressure and air consumption and we will confirm the correct size from the datasheet curves on request before you order.
The M in the code selects the manual drain: collected water is released by opening the drain by hand during inspection rounds. If the unit will sit where nobody bleeds it routinely, the automatic (A) or differential-pressure (blank) drain codes are the alternatives - the 5 um filtration, low-pressure regulator type, square MPa gauge, check valve and NPT 3/4 port stay as coded.
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.