The AirTAC GFR600-20ALC2TK AirTAC Filter Regulator NPT 3/4 in 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 GFR600-20ALC2TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 600-size unit is fitted with a 3/4 in NPT port, an automatic drain that ejects collected condensate without manual attention, a 40 um standard filter element, and the low-pressure regulator type. A round external gauge on a psi scale is fitted, and a reverse/check valve is included. The aluminium alloy bowl suits this largest frame size, and a mounting bracket is included.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, a choice of automatic, manual or differential-pressure drains, 40 um or 5 um (W) filtration, gauge styles and scales, and PT, G or NPT threads. Flow figures are published as curves rather than a single rating, so we confirm datasheet numbers on request.
| Model | GFR600-20ALC2TK AirTAC Filter Regulator NPT 3/4 in |
|---|---|
| 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 | 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 | Automatic drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — round, psi 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". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (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. |
| 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 filtered, pressure-controlled air to the clamping cylinders of a workholding press, with the automatic drain keeping condensate out of the valve stack between shifts.
Conditioning the air supply to conveyor stopper and pusher cylinders on a carton packaging line, where one body handles both water removal and set-point control.
Installed at the 3/4 in main drop feeding an assembly cell, filtering shop-air particulate and holding the downstream pressure the cell's actuators were set up for.
Sizing starts with the port step: this unit is 600 size with a 3/4 in NPT port, the largest frame in the GFR range, so step down to 200/300/400 if your line runs smaller ports. The automatic drain suits unattended duty; choose manual or differential-pressure drains if you prefer operator-controlled or pressure-differential draining. The 40 um element is the standard grade; the W suffix gives 5 um where finer filtration is needed. The round psi gauge is fitted here, with square embedded gauges and MPa or bar scales available as alternatives. PT is the standard thread; G and NPT are order options, and this code selects NPT. A bracket is included, and the K code adds a reverse/check valve.
Flow is published as curves, not a single rated figure, 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.
AirTAC publishes flow for this series as curves, not as a single rated figure, so we do not quote a number here. Ask us and we will confirm the flow and datasheet figures for this exact 600-size, 3/4 in NPT configuration against your application before you order.
The L code in GFR60020ALC2TK selects the low-pressure regulator type rather than the standard type, for applications controlled at lower set-points. The exact range for this variant is not published in our sheet; contact us and we will confirm it from the datasheet on request.
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.