The AirTAC GFR600-20T AirTAC Filter Regulator NPT3/4, Round Bar Gauge 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 GFR600-20T is a size-600 filter regulator that removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration has a 3/4 in NPT port, a manual drain bowl in aluminium alloy, a standard 40 um filter element, and a round pressure gauge reading in bar. The regulator adjusts from 0.05 to 0.9 MPa (7-130 psi), and the maximum working (inlet) pressure is 1.0 MPa (145 psi). Operating temperature range is -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 port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um (W) filtration, embedded square or external round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so we confirm datasheet and sizing figures on request.
| Model | GFR600-20T AirTAC Filter Regulator NPT3/4, Round Bar Gauge |
|---|---|
| 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, bar 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. 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. |
| 3 | Gauge scale: bar. 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. |
| (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) |
Installed at the 3/4 in main drop feeding a CNC machining cell, it strips water and pipe-scale from the header supply and lets the cell set its own regulated working pressure below the compressor output.
Mounted ahead of the valve manifold on a packaging or palletising line, it conditions the air feeding cylinders and grippers and holds a stable set pressure so clamp and transfer motions stay consistent through the shift.
Fitted on the shop-air supply in a commercial vehicle service bay, it cleans and regulates the air used for brake-system testing, air-bag work and pneumatic tool stations fed from a 3/4 in distribution line.
Size 600 is the largest step in the GFR range and carries a 3/4 in port, so choose it when your line is built around 3/4 in NPT piping and the flow demand is at the top of what the family serves. Because rated flow is published only as curves, ask us to confirm the GFR600 curve against your air demand before ordering. This unit has a manual drain: it suits installations where someone drains the bowl as part of a routine, while automatic or differential-pressure drains suit unattended lines. The 40 um element is the standard grade for general plant air; specify the W variant if you need 5 um. The round gauge here reads in bar; square embedded gauges and MPa or psi scales are also available. NPT is the thread on this code; PT is the catalogue standard and G is an order option. A mounting bracket is included.
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 filter-regulator flow as performance curves rather than a single rated figure, so there is no one rated flow number we can quote. Tell us your line pressure, set pressure and air demand, and we will confirm the GFR600 curve and sizing against your application on request before you order.
This code carries the M drain option, meaning the aluminium alloy bowl is drained by hand, which suits attended installations with a regular maintenance round. The GFR family also offers automatic (A) and differential-pressure (blank) drains for unattended operation. The manual-drain version also allows the widest regulator adjustment range, 0.05-0.9 MPa (7-130 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.