The AirTAC GFR600-20 AirTAC Filter Regulator NPT 3/4 in 5 um Auto Drain 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 GFR600-20 is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your setpoint, in one body. This 600-size unit is supplied with a 3/4 in NPT port, a 5 um filter element (W grade), an automatic drain, a low-pressure regulator, an embedded square gauge scaled in psi, and a reverse/check valve; no mounting bracket is fitted. The aluminium alloy bowl suits the largest frame in the range, and maximum inlet pressure is 1.0 MPa (145 psi) with a -5 to 70 C, non-freezing operating temperature.
This is a genuine AirTAC part. The GFR family spans sizes 200 to 600 with ports from 1/8 in to 1 in, PT as the standard thread and G or NPT to order, manual, automatic or differential-pressure drains, 40 um standard or 5 um elements, and MPa, psi or bar gauge scales. Flow is published as curves rather than a single rating, so ask us to confirm figures from the datasheet for your application before ordering.
| Model | GFR600-20 AirTAC Filter Regulator NPT 3/4 in 5 um Auto Drain |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT thread) |
| Filtering grade | 5 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 — square, 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Filtered, regulated air at a stable low setpoint for clamp and gripper cylinders, with the automatic drain clearing condensate so the line runs without daily manual bowl checks.
A 5 um element upstream of solenoid valves and tool-change cylinders, with the regulator holding the circuit pressure the machine builder sets and the psi gauge giving a local reference.
Low-pressure regulated air for sealing-jaw actuation on a packaging line, with the reverse/check valve holding the downstream circuit if upstream pressure dips.
The real choices in this family are the size and port step against your air demand, the drain type (automatic, manual or differential-pressure), the filter grade (40 um standard or 5 um for finer protection), the gauge scale (MPa, psi or bar), the thread (PT standard; G and NPT as order options) and whether a bracket is fitted. This code selects the low-pressure regulator type; its exact adjustment range is not published on our sheet, so confirm the setpoint you need with us before ordering. The 5 um element and automatic drain on this unit suit lines where finer filtration and unattended condensate removal are wanted. Flow is published as curves, not 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for this family as curves, not as a single rated figure, so we do not quote a number on the page. Tell us your line pressure, setpoint and expected air demand and we will confirm the sizing from the datasheet on request before you order.
The L code selects the low-pressure regulator variant instead of the standard type. Its exact adjustment range is not published on our sheet, so if your setpoint is critical, confirm the range you need with us on request. Everything else on this unit - 3/4 in NPT port, 5 um element, automatic drain, square psi gauge and reverse/check valve - is unchanged.
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.