The AirTAC GFR600-20 AirTAC Filter Regulator, NPT3/4, 40 um 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: it removes water and particulate from compressed air and sets downstream pressure in a single 600-size body. This configuration carries 3/4 in NPT ports, the standard 40 um filter element, a differential-pressure drain that bleeds condensate automatically as flow passes through, and an aluminium alloy bowl (size 600 bowls are aluminium alloy). It regulates between 0.15-0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and operates from -5 to 70 C (non-freezing). A round psi gauge is fitted, a reverse/check valve is included, and the unit is supplied without a mounting bracket.
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 in, thread options PT (standard), G and NPT, manual or automatic drain variants, a 5 um element option, gauge scale choices and bracket options. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR600-20 AirTAC Filter Regulator, NPT3/4, 40 um |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure 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 0.15 - 0.9 MPa (20 - 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". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard 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. |
| (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 the 3/4 in drop feeding a CNC machining cell, it cleans water and scale out of the shop air line and holds a steady set pressure to the machine's pneumatic valves and clamps.
Mounted ahead of the cylinder bank on a carton-forming packaging line, it keeps condensed moisture out of the actuators and gives operators a set-and-lock pressure point for consistent case handling.
Fitted at the inlet of an automated assembly fixture's pneumatic circuit, it filters incoming plant air and regulates the supply to grippers and clamps, with the psi gauge giving a visible setpoint at the panel.
Size 600 is the largest step in the GFR range, with 3/4 in NPT ports on this unit - step up or down (200/300/400/600) against the flow your line needs, and ask us to confirm sizing against the published flow curves before ordering. The drain here is differential-pressure, which discharges condensate as flow passes through; manual-drain and automatic-drain variants exist if you prefer scheduled or continuous draining. The 40 um element is the standard grade; a 5 um element (code W) is available where finer filtration is wanted. The fitted round gauge reads in psi; square embedded gauges and MPa or bar scales are the other catalogue choices. NPT is the thread on this unit, with PT (standard) and G offered as order options. A mounting bracket is not included with this code (code J), and a reverse/check valve is fitted (code K).
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 curves rather than a single rated figure, so we do not quote a rated flow number. Send us your application details and we will confirm the flow data from the datasheet and check the sizing against your line before you order.
This unit has a differential-pressure drain, which discharges collected condensate automatically when air flows through the bowl, so no manual draining is needed during operation. If you would rather drain on a schedule or continuously, the GFR600 is also available with a manual drain (code M) or automatic drain (code A) - ask us for those variants.
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.