The AirTAC AirTAC GFR600-20ALJC1T 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 GFR600-20ALJC1T is a size 600 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is built for 3/4 in NPT ports, carries an automatic drain that expels collected condensate without anyone opening it, and a 40 um standard filter element. The L code marks the low-pressure type regulator, and a round pressure gauge scaled in MPa is fitted. The bowl on this 600 frame is aluminium alloy, maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing). No mounting bracket is included with this code.
This is a genuine AirTAC part. GFR filter regulators are offered in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, a choice of automatic, manual or differential-pressure drains, 40 um or 5 um (W) filtration, standard or low-pressure regulation, gauge options, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | AirTAC GFR600-20ALJC1T 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, MPa 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. 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 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) |
Clean, regulated air to the pneumatic cylinders that drive capping, sorting and reject stations on a bottling line, with the automatic drain handling condensate through long production shifts.
Filtered, pressure-controlled air ahead of the directional control valve bank on a packaging machine, protecting spools from water and particulate carryover.
The low-pressure type regulator suits processes such as spray-booth or coating-air setups that run at lower regulated settings, with the MPa gauge giving the operator a clear reference.
Start with size and port: this is the largest frame, size 600, with a 3/4 in NPT port, matched to lines that move serious air. Drain choice matters - automatic (fitted here) suits installations that cannot rely on someone draining the bowl, while manual and differential-pressure versions are available. Filtration is the 40 um standard element here; the 5 um (W) element is the choice where finer pre-filtration is wanted. The L code selects the low-pressure type regulator; the exact adjustment range for this variant is not published in our data, so confirm it with us before ordering. Gauge scales are MPa, psi or bar - this code carries a round MPa gauge. Thread is NPT here, with PT as the standard and G available to order, and brackets are optional on this family. Flow is published 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. Without the K option, air cannot flow back 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. Send us your line pressure and air demand and we will confirm the datasheet figures and check the sizing for your application before you order.
The A code fits an automatic drain, which expels collected condensate from the bowl on its own instead of waiting for manual draining. The L code selects the low-pressure type regulator; the exact adjustment range for this variant is not published in our data, so confirm it with us when ordering.
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.