The AirTAC GFR600-20G AirTAC Filter Regulator 3/4" Low-Pressure 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 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 GFR600-20G is a size-600 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built with a 3/4 in G (BSPP) port, a fine 5 um filter element (code W), a manual drain on the bowl, the low-pressure regulator type, and a round pressure gauge reading in psi. The aluminium alloy bowl suits the largest frame in the range, and the unit is supplied without a mounting bracket.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um standard or 5 um fine filtration, standard or low-pressure regulation, gauge style and scale options, and G, NPT or PT threads. Flow is published as curves rather than a single rating, so we confirm the datasheet and sizing figures on request.
| Model | GFR600-20G AirTAC Filter Regulator 3/4" Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (G (BSPP) thread) |
| Filtering grade | 5 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 — round, 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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. |
| G | G (BSPP) 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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Installed at a 3/4 in branch line feeding a packaging hall, it strips water and fine particles and holds a steady reduced pressure to the hall's distribution manifold, with the psi gauge giving operators a local reading.
Mounted ahead of the valve manifold on a conveyor system, it cleans the supply to 5 um and regulates pressure to the drive and gate cylinders so indexing stays consistent through the shift.
Fitted on the supply to a laboratory test bench, the fine 5 um element protects sensitive instrumentation from water and particulate while the low-pressure regulator type holds the gentle setpoint the bench requires.
Step up or down through sizes 200, 300, 400 and 600 to match the port and flow path your line needs; this unit sits at the top of the range with a 3/4 in G port. Choose the drain to suit access: manual (as here) for supervised points, automatic for unattended drops, or differential-pressure as the default. Pick 5 um filtration when downstream equipment needs finer air than the 40 um standard element delivers. The low-pressure regulator type suits circuits working at reduced pressures; the exact regulation range for this type is not published, so ask us to confirm it against your setpoint. Gauge scale (MPa, psi or bar), thread family (PT standard, G or NPT to order) and bracket inclusion are all decodable choices. Because flow is published as curves rather than one rated figure, send us your application details and we will confirm sizing before you order.
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 as a single rated number, so we do not quote a figure. Tell us your line pressure and the flow your application needs and we will confirm the sizing from the datasheet on request.
The manual drain means an operator opens the drain to discharge collected water and dirt, which suits points that are visited during routine checks. If the unit sits where nobody passes regularly, ask about the automatic or differential-pressure drain versions of the same GFR600 filter regulator.
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.