The AirTAC GFR600-20 AirTAC Filter Regulator 3/4 in PT, 5 um 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 GFR600-20 is an AirTAC GFR-series filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This size 600 unit carries a 3/4 in PT port, a 5 um filter element (code W), a manual drain bowl, and a low-pressure regulator type. Because it is the 600 size, the bowl is aluminium alloy. The embedded square gauge fitted here reads in psi, a reverse/check valve is fitted, 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 drain type, 40 um or 5 um filtration, gauge scale options, G/NPT thread variants and bracket choices. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet numbers for your application before ordering.
| Model | GFR600-20 AirTAC Filter Regulator 3/4 in PT, 5 um |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (PT 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 — 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". |
| 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). |
| 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. |
| (blank) | PT 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) |
Feeding clean, regulated air to the cylinders and actuators on a carton-forming or wrapping line, with the 5 um element protecting downstream valves from particulate and the manual drain letting operators bleed collected water at shift checks.
Supplying a workholding clamp circuit on a machining cell where the low-pressure regulator type holds the clamping pressure the fixture was set up for, and the fitted psi gauge gives the operator a direct read of set pressure.
Serving a distribution header that both drives conveyor diverters and feeds blow-off nozzles, with the filter stage stripping water and chips from the shop air and the reverse/check valve holding the circuit if upstream supply drops.
Choose the size and port step against the air demand of the line: this unit is size 600 with a 3/4 in PT port, and the family steps from 1/8 in up to 1 in. Drain type is a real choice - manual (as here), automatic, or the differential-pressure default - manual suits installations where an operator can bleed the bowl on a routine. Filter grade is 40 um standard or 5 um (code W) where finer particulate removal is needed; this unit carries the 5 um element. Gauge scale can be MPa, psi or bar (this one is psi, square type), thread can be PT (standard), G or NPT to order, and brackets are optional (this unit ships without one). 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. The reflux valve permits reverse flow 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 figure, so we do not quote a number here. Tell us your line demand and working pressure and we will confirm the flow from the datasheet curves for this 3/4 in, size 600 unit before you order.
The M in the code means the bowl is drained by hand: an operator opens the drain to remove collected water and oil. If the installation is not visited regularly, the automatic-drain variant of the same GFR600 unit removes condensate without intervention, and the differential-pressure drain is the family default. All three drain types are orderable on this size.
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.