The AirTAC GFR60020NTK AirTAC Filter Regulator NPT3/4 with Check Valve is a genuine G-series filter regulator: water separation, 40 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 GFR60020NTK is a size-600 filter regulator: water and particulate removal plus downstream pressure regulation in a single body. This configuration carries a 3/4 in NPT port, the standard 40 um filter element, and a differential-pressure drain that bleeds accumulated condensate automatically whenever the pressure differential across the element rises. The size-600 bowl is aluminium alloy, the maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator covers 0.15-0.9 MPa (20-130 psi) outlet, and the operating temperature range is -5 to 70 C (non-freezing). A reverse/check valve is fitted, and no gauge is supplied with this code.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, optional 5 um filtration (code W), manual or automatic drain variants, gauge and scale choices, and G or NPT thread options. Flow figures for this series are published as curves rather than a single rating, so ask us to confirm the datasheet for your operating point before ordering.
| Model | GFR60020NTK AirTAC Filter Regulator NPT3/4 with Check Valve |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT thread) |
| Filtering grade | 40 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. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Feeding clean, regulated air to pneumatic clamp and part-ejector circuits on a stamping line, where the 3/4 in port serves the header feeding multiple valve manifolds and the check valve holds downstream pressure if the supply dips.
Conditioning supply air for conveyor stopper, pusher and lift cylinders on a bottling hall line, with the differential-pressure drain handling condensate carry-over from a long compressed-air distribution run.
Supplying filtered, regulated air to the tool changer and clamping circuits of a CNC machining centre, where stable downstream pressure from the 0.15-0.9 MPa regulator protects cycle consistency.
Size up by port and flow demand: GFR200 through GFR600 step from 1/8 in up to 1 in, so pick the size whose flow curve covers your consumption with margin. Choose the drain to match the installation: differential-pressure (this unit) drains on element loading, automatic drains on a timer-free cycle, and manual suits attended installations. Filter grade is 40 um as standard; specify code W for 5 um where finer pre-filtration is needed. Gauge versions (embedded square or external round, MPa/psi/bar scales) are orderable codes; this N-suffix unit has none. Thread is NPT here; PT is the catalogue standard and G (BSPP) is also available. Brackets are included on GFR units.
Because published flow data is curve-based and not a single rated figure, send us your line pressure, downstream demand and acceptable pressure drop and we will confirm sizing against the datasheet 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 GFR series as performance curves rather than a single rated figure, so we do not quote a number. Tell us your inlet pressure, downstream demand and acceptable pressure drop, and we will confirm the sizing against the datasheet on request before you order.
No. The N in GFR60020NTK means no gauge is fitted. GFR codes with a gauge suffix are available with an embedded square gauge or an external round gauge, in MPa, psi or bar scales - ask us to quote the gauge-equipped variant if you want a local pressure readout.
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.