The AirTAC GFR600C20ALF3T AirTAC Filter Regulator NPT3/4 Low-Pressure 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 See datasheet 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 GFR600C20ALF3T is an AirTAC GFR-series filter regulator: a water-and-particulate filter and a pressure regulator combined in one body, with a drain bowl but no lubricator. This size 600 unit is built around a 3/4 in NPT port and is the low-pressure regulator type, so it suits lines that run below standard plant pressure. It carries a 40 um filter element, an automatic drain that discharges collected condensate without operator attention, an embedded square gauge scaled in bar, and an aluminium alloy bowl. A mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and catalogue options include a 5 um element (code W), manual or differential-pressure drain, G (BSPP) or NPT thread in place of the PT standard, gauge scales in MPa, psi or bar, and a reverse/check valve. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm figures against your application.
| Model | GFR600C20ALF3T AirTAC Filter Regulator NPT3/4 Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | See datasheet (PT 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 — factory standard, Factory standard 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 0.15 - 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. |
|---|---|
| C2 | Port size See datasheet. 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-C2 (two-unit set) |
On a bottling or filling line, filtered and regulated air feeds the pilot ports of pneumatic control valves; the automatic drain keeps collected condensate out of the valve train during continuous runs.
CNC machining cells that clamp workpieces at reduced line pressure can use this low-pressure-type regulator, with the 40 um element protecting clamp cylinders from water and scale in shop air.
Distribution-centre sortation conveyors use short-stroke cylinders for diverters and stops; a 3/4 in filter regulator at the drop keeps their supply clean and held at the pressure the diverters were set up for.
Choose the size and port by the air your line consumes: 600 is the largest GFR frame, and this unit takes a 3/4 in NPT port. If your supply is standard PT thread, order the plain suffix; G (BSPP) and NPT are catalogue options. Pick the drain to match service: automatic (this unit) discharges condensate on its own, manual needs an operator, and the differential-pressure default drains as the pressure differential across the element builds. The 40 um element is standard; specify W for 5 um when finer filtration matters. The embedded square gauge here reads in bar; MPa and psi scales are available and an external round gauge is optional. A bracket is included, and a reverse/check valve can be fitted. This unit is the low-pressure regulator type; its adjustment range is not published, so confirm it with us if your setpoint is critical.
Flow for GFR units is published as curves, not a single rated figure, so send us your flow and pressure requirements and we will confirm sizing from 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 GFR flow as curves rather than a single rated figure, so we do not quote one number. Send us your required flow, inlet pressure and setpoint and we will confirm sizing from the datasheet on request.
Code A specifies an automatic drain, which discharges collected condensate without operator attention - useful on unattended or continuous-duty lines. Manual (M) and the differential-pressure default are catalogue alternatives on other GFR codes, and a 5 um element is available as code W.
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.