The AirTAC GFR600-20 AirTAC Filter Regulator PT3/4, Low-Pressure 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 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 regulates downstream pressure in a single body. This 600-size unit is supplied with a 3/4 in PT port, a manual drain, the standard 40 um filter element, an embedded square gauge scaled in psi, and the low-pressure regulator type. The aluminium alloy bowl suits larger installations.
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 automatic or differential-pressure drains, a 5 um element (code W), MPa/psi/bar gauge scales and G or NPT threads. Flow is published as curves rather than a single rating, so we confirm datasheet figures on request.
| Model | GFR600-20 AirTAC Filter Regulator PT3/4, Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, 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. 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (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. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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) |
Point-of-use conditioning at assembly stations: the GFR600-20 filters line moisture and particulate and holds a stable setting for air tools and clamping fixtures on a 3/4 in drop, with the manual drain purged during scheduled maintenance.
Loom jet and pneumatic doffing circuits that run at reduced supply pressure suit the low-pressure regulator type, while the 40 um element helps protect jet nozzles and cylinders from scale and condensate carryover.
Carton sealing and case-erector cylinders on a 3/4 in header receive filtered, regulated air; the manual drain on the aluminium bowl lets maintenance purge accumulated condensate during line shutdowns.
Size and port step up with required flow: 200, 300, 400 and 600 bodies take ports from 1/8 in up to 1 in, and this 600 unit carries PT3/4. Drain choice matters: manual drains need operator attention, automatic drains discharge condensate on their own, and differential-pressure drains bleed with the pressure drop; this unit uses a manual drain. The standard element is 40 um; specify code W for 5 um. The gauge here is the embedded square type scaled in psi (MPa and bar scales are available), and G or NPT threads can be ordered instead of PT. Because flow 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 GFR flow as curves, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow curve and correct sizing from the datasheet on request.
The L in GFR60020MLF2 marks the low-pressure regulator type, intended where the downstream setting sits below the standard type's normal range. The exact adjustment range for the low-pressure type is not published in the sheet we work from, so we confirm it on request. The embedded square gauge on this unit is scaled in psi.
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.