The AirTAC GFR600-20 AirTAC Filter Regulator 3/4 in PT, 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 differential-pressure 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 GFR600-20 is an AirTAC GFR-series filter regulator: water and particulate removal plus pressure regulation in a single body. This size 600 unit takes a 3/4 in PT port and is the low-pressure (L) type, intended for circuits that run downstream at reduced pressure. It filters to the standard 40 um grade, drains condensate by differential pressure, and is fitted with an embedded square gauge scaled in psi. The size-600 bowl is aluminium alloy, maximum inlet pressure is 1.0 MPa (145 psi), operating temperature is -5 to 70 C (non-freezing), and this configuration has no mounting bracket.
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 include automatic or manual drains, a 5 um filter element (code W), alternative gauge scales, G or NPT threads, and a mounting bracket. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR600-20 AirTAC Filter Regulator 3/4 in PT, Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (PT 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 | Differential-pressure 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". |
| (blank) | Drain: Differential-pressure 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. |
| (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) |
Filtered, low-pressure regulated air for the sealing and wrapping cylinders on a packaging machine, where the 3/4 in PT connection feeds a main drop and the 40 um element protects downstream valves.
Regulated air for hold-down and gating cylinders along a bottling conveyor, with the low-pressure type setting a reduced circuit pressure and the differential-pressure drain clearing condensate from the bowl.
Clean, regulated air for pneumatic control valves and actuators on a pilot-scale process skid, where the aluminium alloy bowl and psi-scaled square gauge suit a US-instrumented rig.
Step through the real choices before ordering. Size and port set the air capacity: 200/300/400/600 map to ports from 1/8 in to 1 in, and this 600 unit takes a 3/4 in PT connection - match it to what your line needs. Drain choice matters: differential-pressure (this unit), automatic (A) or manual (M). Filter grade is 40 um standard or 5 um with code W. Gauges are embedded square as standard, with optional external round gauges in MPa, psi or bar scales. Threads come as PT standard, with G (BSPP) and NPT as order options, and brackets are optional - this unit has none. Note that this is the low-pressure (L) type; its exact regulation range is not published in our data, so confirm it with us if your circuit needs a specific setting window. 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 the GFR series as curves, not a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow and other datasheet figures for the GFR600-20 on request before you order.
L marks the low-pressure type of regulator - a variant intended for circuits that run at reduced downstream pressure. The exact regulation range for the low-pressure type is not published in our data, so ask us to confirm it against your set pressure. The rest of the code reads: 600 size, 3/4 in PT port, J = no bracket, F = square gauge, 2 = psi scale.
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.