
The AirTAC AirTAC GFR600-20 Filter Regulator (GFR60020NWK) 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 GFR60020NWK is an AirTAC GFR600 filter regulator: filtration and pressure regulation combined in one 600-size body with 3/4 in PT ports. The W code selects the finer 5 um filter element, the blank drain position means a differential-pressure drain, the N code means no gauge is fitted (external round gauges are a catalogue option), and K adds a built-in reverse (check) valve that holds downstream pressure if the supply drops. With this drain type the regulator adjusts 0.15-0.9 MPa (20-130 psi); maximum inlet pressure is 1.0 MPa (145 psi), the 600-size bowl is aluminium alloy, and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the G series, which spans 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in. Across the series you can order G (BSPP) or NPT threads, automatic or manual drains, a 40 um or 5 um element, external gauges on MPa, psi or bar scales, and the check valve. Flow is published as curves rather than a single rating, so ask us to confirm sizing and send the datasheet before you order.
| Model | AirTAC GFR600-20 Filter Regulator (GFR60020NWK) |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (PT 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. |
| (blank) | PT 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) |
Supplies filtered, regulated air to pneumatic clamp cylinders on a CNC fixture; the built-in check valve holds the clamp circuit if shop air pressure drops mid-cycle.
Conditions torch air on a CNC plasma cutter: removes water and fine particles and holds a steady set pressure, with no oil mist added to the cutting stream.
Feeds the valve manifold of an automated assembly station; the 5 um element suits valve stacks that call for finer filtration, and the 3/4 in ports suit a header serving several stations.
Size steps up in the order 200, 300, 400, 600, with ports from 1/8 to 1 in; choose the 600 size with 3/4 in ports when your header serves a higher demand than a 400-size unit, and we will confirm the step against the published flow curves on request. Drain types: differential-pressure (this unit - it expels condensate using the pressure drop across the element), automatic (blows down when flow stops) and manual (opened by hand, and the only drain type with the wider 0.05-0.9 MPa set range). Element: 40 um standard, 5 um (this unit, W) where finer protection is called for. No gauge is fitted on this code; external round gauges with MPa, psi or bar scales are catalogue options. Thread is PT as standard, with G (BSPP) and NPT available to order. Flow is published as curves, not a single rating - send us your application and we will confirm sizing from the datasheet 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 G-series flow as curves rather than a single rated figure, so we do not quote one number for this unit. Send us your line pressure and air demand and we will read the curve and confirm sizing from the datasheet on request.
A blank drain position means the differential-pressure drain: condensate is expelled using the pressure difference across the filter element while air flows. Codes with A carry an automatic drain and M a manual drain; the drain type also sets the regulator adjust range, which is 0.15-0.9 MPa (20-130 psi) for this unit.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.