The AirTAC GFR600-20T AirTAC Filter Regulator NPT 3/4 in, 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 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 AirTAC GFR600-20T 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 built around a 3/4 in NPT port and carries the 5 um filter element (code W) for finer filtration than the standard 40 um grade. It is the low-pressure regulator type, drains its bowl by differential pressure, and is supplied with an external round gauge reading in psi and a mounting bracket. At size 600 the bowl is aluminium alloy, and the maximum working (inlet) pressure is 1.0 MPa (145 psi) with an operating temperature of -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR filter-regulator line spans sizes 200, 300, 400 and 600, with port sizes from 1/8 in to 1 in, PT as the standard thread and G or NPT as order options, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, standard or low-pressure regulation, and gauge choices. Because flow is published as curves rather than a single rating, we confirm the datasheet and sizing figures for your application on request.
| Model | GFR600-20T AirTAC Filter Regulator NPT 3/4 in, 5 um |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — round, psi 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". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure 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. |
| 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) |
On a CNC machining line, this 3/4 in filter regulator conditions the plant air feeding pneumatic clamps and fixtures that hold workpieces at low regulated pressure, with 5 um filtration protecting the clamp valves from particulate and condensed water.
On a packaging or conveying line, the GFR600-20T sits at the drop point where 3/4 in branch air feeds actuators and air-jet nozzles, filtering water and fine particles at 5 um and holding a steady low regulated pressure to the downstream valves.
On a coating or process skid that calls for low-pressure instrument and actuation air, this unit filters the supply to 5 um and regulates it to the low setpoint the process requires, with the psi gauge giving operators a direct local reading.
Size and port are the first decision: the 200/300/400/600 step sets both the port (here 3/4 in) and the flow capacity, so match the size to the air demand of the circuit rather than to the pipe alone. This unit is the low-pressure (L) type - choose it where the regulated pressure sits well below the standard range; the exact range for the low-pressure type is not published, so confirm it with us before ordering. Drain options are differential-pressure (this unit, default), automatic (code A) or manual (code M). Filter grade is 40 um standard or 5 um with code W, as fitted here. Gauge choices are the embedded square gauge or an external round gauge, in MPa, psi or bar scales; this unit carries the round psi gauge. Thread is PT as standard, with G (BSPP) and NPT as order options - this unit is NPT. A bracket is included (code J removes it).
One honest routing note: AirTAC publishes flow as curves, not as a single rated figure, so we do not quote a flow number. Ask us to confirm sizing against your application from the datasheet before ordering.
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 flow number for this unit. Tell us your application's air demand and line conditions, and we will confirm the sizing from the datasheet on request before you order.
The L code means this GFR600-20T carries the low-pressure regulator variant rather than the standard one, for circuits regulated well below normal line pressure. The exact regulation range of the low-pressure type is not published, so confirm the range you need with us on request. Everything else decodes as standard: 3/4 in NPT port, 5 um filtration, differential-pressure drain, round psi gauge, aluminium bowl and included bracket.
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.