The AirTAC GFR600-20 AirTAC Filter Regulator, NPT3/4, 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 AirTAC GFR600-20 is a size-600 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 5 um filtering element (the finer of the two catalogue grades), a manual drain for the aluminium-alloy bowl, the low-pressure regulator type, and an embedded square gauge scaled in bar. The port is NPT3/4 (3/4 in).
This is a genuine AirTAC part. The GFR family is published in 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 and PT, G or NPT threads. Flow figures are published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR600-20 AirTAC Filter Regulator, NPT3/4, 5 um |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT 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, 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. 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
A workshop press or clamping fixture running at reduced supply pressure uses the GFR600-20 to filter the shop air and hold a steady, lower regulated pressure to the cylinder, with the bar-scaled gauge giving the operator a direct setting reference.
On a cartoning or case-packing line, this unit conditions the air feeding directional valves and actuators: the 5 um element screens particulate before sensitive valve seats, the manual drain clears the 3/4 in bowl at shift checks, and the regulator steadies pressure to the valve island.
At a main air drop serving an assembly cell, the size-600 body handles the cell's supply line, filtering water and pipe scale and regulating pressure to the fixtures and air tools, with the manual-drain aluminium bowl emptied during scheduled maintenance rounds.
Size 600 with a 3/4 in port is the largest step in the GFR range; step up or down (200/300/400) according to the flow your line needs. Choose the drain to suit access: manual drain (this model) requires someone to open the bowl, while automatic and differential-pressure drains discharge collected water without attention. Filtration is 40 um standard or 5 um (code W, fitted here) where finer protection is needed. The gauge is the embedded square type with a bar scale here; MPa, psi and bar scales and an external round gauge are options. Thread is NPT on this model, with PT (standard) and G available to order; a mounting bracket is included.
Because flow is published as curves rather than a single rated figure, we cannot quote one number here - send us your application details and we will confirm sizing against the datasheet 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 figure, so we do not quote a number here. Send us your line size and air demand and we will confirm the flow curve and correct sizing from the datasheet on request.
The manual drain (code M) means collected water is released by opening the bowl drain by hand, which suits attended installations on a maintenance schedule. The GFR family also offers an automatic drain (code A) and a differential-pressure drain (the default, no code) that discharge condensate without manual attention - tell us which fits your installation when ordering.
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.