
The AirTAC AirTAC GFR600-20 Filter Regulator (GFR60020AF1WK) 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 automatic 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 GFR60020AF1WK is a G-series filter regulator with a reverse (check) valve fitted: filtration and regulation in one body, no lubricator. This 600-size unit carries a 3/4 in PT port, an automatic drain on the aluminium alloy bowl, a fine 5 um filter element (W code), an embedded square gauge scaled in MPa, and the K-code check valve. Downstream pressure adjusts over 0.15-0.9 MPa (20-130 psi), the maximum inlet is 1.0 MPa (145 psi), and it operates from -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The G-series filter regulator family covers 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in; options include manual or differential-pressure drains, the standard 40 um element, psi or bar gauge scales, G (BSPP) or NPT threads, and a bracket (included here). Flow is published as curves rather than a single rating, so we confirm datasheet figures on request.
| Model | AirTAC GFR600-20 Filter Regulator (GFR60020AF1WK) |
|---|---|
| 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 | Automatic 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. 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". |
| A | Drain: Automatic 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. |
| (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. |
| (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) |
Installed on the instrument-air branch of a pneumatic test rig, the 5 um element protects the rig's transducers and precision actuators from fine particulate while the regulator holds the test pressure and the check valve maintains the rig's circuit arrangement.
Fitted on the air supply to pneumatically driven dosing pumps on a process line, it filters supply air to 5 um ahead of the pump's air motor and keeps the driving pressure at the set value so each stroke charge stays consistent.
Mounted on the regulated supply of a workshop calibration bench, it delivers cleaned 5 um-filtered air to the devices under test and holds the set pressure stable through each calibration sequence.
This is the fully specified variant of the 600-size filter regulator: 5 um filtration (W) plus an integral reverse/check valve (K) on a 3/4 in PT port. Choose it when both finer filtration and the check valve are wanted; drop the K for the check-valve-free version, or the W for the 40 um standard element. The automatic drain suits unattended mounting, with manual and differential-pressure drains orderable. Gauge is the embedded square type in MPa, with psi/bar scales available; PT is standard with G (BSPP) and NPT as catalogue options, and the bracket is included. Flow appears in the datasheet as curves, not a single rating, 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
Yes - on request. AirTAC publishes G-series flow as curves rather than a single rated figure, so there is no rated number to quote here. Share your flow demand and operating pressures and we will confirm the match against the datasheet before you order.
WK combines two decode options: W for the 5 um filter element (instead of the 40 um standard) and K for a fitted reverse/check valve. Port (3/4 in PT), 600 size, automatic drain and the square MPa gauge are the same across this group, so the choice comes down to filtration fineness and whether the check valve is wanted.
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.