The AirTAC GFR600-20ALNTK AirTAC Filter Regulator NPT3/4 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 GFR600-20ALNTK is a size-600 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has a 3/4 in NPT port, an automatic drain that expels collected condensate without manual attention, the standard 40 um filter element, the low-pressure regulator type, and a reverse/check valve fitted. No gauge is fitted, so downstream pressure must be monitored by other means or added separately. The aluminium alloy bowl is specific to the 600 size, which suits installations where a polycarbonate bowl is not preferred.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options including manual or differential-pressure drains, a 5 um element, gauge variants and G or NPT threads. Flow is published as curves rather than a single rating, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR600-20ALNTK AirTAC Filter Regulator NPT3/4 |
|---|---|
| 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 | 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. 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. |
| 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) |
Drops a 3/4 in plant air header to a controlled, filtered supply feeding a hall of case packers and carton sealers, with automatic drain keeping condensate off the machines.
Filters and regulates the air driving pneumatic diverters, stop gates and pushers along a conveyor line, with the check valve holding the downstream circuit if supply dips.
Supplies filtered air at a low setpoint to clamping fixtures and workholding circuits on a machining cell, where the low-pressure regulator type matches the modest setpoint range.
Step up or down through the GFR sizes (200/300/400/600) to match the port and flow path your line needs; this unit is the 600 size with a 3/4 in NPT port. The automatic drain suits unattended duty; manual and differential-pressure drains are the alternatives if you prefer scheduled or load-proportional draining. The 40 um element is the standard grade; specify the W code for the 5 um element where finer filtration is required. This is the low-pressure regulator type, so confirm its published range against your setpoint before ordering. Thread is NPT here, with G(BSPP) and PT available as order options; a mounting bracket is included and gauge variants exist on other codes.
Because flow is published as curves and not a single rated figure, 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 the GFR series as curves, not as a single rated number, so we do not quote a figure here. Tell us your application and we will confirm the flow figures from the datasheet on request.
The A code gives an automatic drain, which discharges collected condensate from the aluminium bowl without manual intervention. This code carries no gauge (N), so downstream pressure must be monitored separately; gauge variants exist on other GFR codes.
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.