The AirTAC GFR600-20T AirTAC Filter Regulator NPT3/4 Auto Drain 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 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 GFR600-20T is a filter regulator: one body that removes water and particulate from compressed air and then regulates downstream pressure. This unit is the size 600 frame with a 3/4 in NPT port, the standard 40 um filter element, and an automatic drain that expels collected condensate without manual attention. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), and the fitted round gauge reads in psi so operators can set and verify line pressure at a glance. The bowl on this size is aluminium alloy, and the J code means no mounting bracket is included.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of automatic, manual or differential-pressure drain, a 5 um element option (code W), gauge scale choices in MPa, psi or bar, and G or NPT thread options. Flow figures for this series are published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR600-20T AirTAC Filter Regulator NPT3/4 Auto Drain |
|---|---|
| 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 | Automatic drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — round, psi scale |
| Reflux valve | Not fitted |
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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 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. |
| (blank) | No reverse-flow valve (the default). |
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) |
Installed at the drop from a 3/4 in plant air header, it removes pipe-scale and condensed water from the main supply and holds a steady regulated pressure for the downstream air circuit.
Feeding air cylinders and actuators on a packaging or cartoning conveyor, it keeps water and debris out of the valve stack and gives the line setter a psi gauge to set consistent actuator pressure.
Mounted ahead of pilot-operated process valves and air-operated control panels, it delivers clean, regulated air at the set pressure the valve manufacturer requires, with automatic condensate draining.
Size 600 with a 3/4 in port is the largest GFR frame, so step up or down through 200/300/400/600 and the matching port sizes according to the air demand of the line. Drain type is a real choice here: automatic (this unit) suits unattended duty, manual drain suits stations where an operator checks regularly, and the differential-pressure default drains only when the pressure differential builds. The 40 um element is the standard grade; specify the W code if the application needs 5 um filtration. Gauge scale is selectable (MPa, psi or bar) and the embedded square gauge is standard with an external round gauge optional. Thread is NPT on this unit; PT is the standard and G (BSPP) is also an orderable option. Brackets are optional - this configuration is supplied without one. Because flow for the GFR series is published as curves rather than a single rating, 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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR 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 flow figures for this 3/4 in size 600 unit on request.
The A code fits an automatic drain, which discharges collected condensate from the aluminium alloy bowl on its own - useful for unattended or hard-to-reach installations. Manual and differential-pressure drains are available on the same series if you prefer operator-controlled or differential-triggered draining.
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.