The AirTAC AirTAC GFR600-20 Filter Regulator, 3/4 in NPT 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 size 600 unit is specified with 3/4 in NPT ports, a 40 um standard filter element, a manual drain on the bowl, and a fitted round pressure gauge scaled in psi. Because the code carries K, a reverse (check) valve is fitted, and the bracket is included. The aluminium alloy bowl on this 600 size suits applications where a polycarbonate bowl is not preferred, with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with a choice of ports, drain types (differential-pressure, automatic or manual), 40 um or 5 um filtration, gauge styles and scales, PT, G or NPT threads, and optional reverse valve. Flow figures are published as curves rather than a single rating, so we confirm the datasheet and sizing for your application on request.
| Model | AirTAC GFR600-20 Filter Regulator, 3/4 in NPT |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Standard 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 | 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. Standard type, regulating 0.05 - 0.9 MPa (7 - 130 psi). 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (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. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Installed on a 3/4 in compressed-air distribution branch in a manufacturing plant, the GFR600-20 filters water and particulate from the supply and holds a steady regulated pressure to the machines fed from that branch.
Feeding pneumatic cylinders and air-powered actuators on a packaging or material-handling conveyor line, the unit cleans the incoming air and keeps actuator pressure consistent, with the check valve holding downstream pressure if the supply dips.
Mounted at a maintenance workshop drop with the included bracket, the unit conditions the shop air supply and lets technicians set a stable working pressure for air tools and small pneumatic fixtures, draining the bowl manually as part of routine checks.
Size 600 with 3/4 in NPT ports is the largest GFR step, so match it against the flow your line actually needs - flow is published as curves, not a single rated figure, so ask us to confirm sizing against the application before ordering. This unit uses the manual drain: someone opens the drain periodically, which suits attended installations; choose automatic or differential-pressure drain codes if the unit will be left unattended. The 40 um element is the standard grade; a 5 um element (code W) is available when finer filtration is needed. The fitted round gauge reads in psi; embedded square gauges and MPa or bar scales are the other catalogue options. PT is the standard thread, with G (BSPP) and NPT as order options, and the bracket is included on this code.
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 GFR flow as performance curves rather than a single rated figure, so we do not quote one number. Tell us your application and required flow, and we will confirm the sizing from the datasheet on request before you order.
The M in the code GFR60020MC2TK specifies a manual drain: the accumulated water in the aluminium bowl is released by hand at intervals. If the unit will be installed where nobody attends it regularly, ask about the differential-pressure (default) or automatic drain versions of the same size 600 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.