The AirTAC GFR600C20ALF1TK 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 GFR600C20ALF1TK is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in a single 600-size body with a 3/4 in NPT port. This configuration is the low-pressure type, fitted with an automatic drain that expels collected condensate without manual attention, a 40 um standard filter element, and an embedded square gauge scaled in MPa. The 600-size bowl is aluminium alloy, and this unit also carries a reverse/check valve and comes with a mounting bracket.
This is a genuine AirTAC part. The GFR family spans sizes 200 to 600 with ports from 1/8 in to 1 in, optional 5 um (code W) filtration, manual or differential-pressure drain alternatives, square or round gauges with MPa, psi or bar scales, and G (BSPP) or NPT thread options where this code carries NPT. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR600C20ALF1TK 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) |
Mounted at a 3/4 in drop feeding a packaging machine's cylinder and valve manifold, it removes water and pipe scale from the shop air and holds the supply pressure the machine's sequence was set up for, with automatic drain keeping the bowl clear across shifts.
On a panel supplying pneumatic positioners and solenoid valves on process lines, it filters the incoming air and regulates it to the instrument loop's set pressure, with the MPa gauge giving operators a local reading and the check valve holding the setting against supply dips.
At a 3/4 in bench drop serving impact wrenches, grinders and air guns, it strips moisture and debris before the tools and lets technicians set a lower working pressure at the point of use, with the aluminium bowl and bracket suiting fixed panel mounting.
Start with the port step: this unit is 600 size with a 3/4 in NPT thread, the largest frame in the GFR range - step down to 200/300/400 sizes (up to 1/2 in) if your line flow is smaller. Drain is the next real choice: automatic (as coded here) for unattended condensate removal, or manual and differential-pressure variants where you prefer controlled or load-proportional draining. Filtration is 40 um standard; specify code W for the 5 um element if downstream equipment needs finer air. The square gauge is fitted here with an MPa scale, and psi or bar scales plus an external round gauge are available. Thread is NPT on this code; PT is the standard thread and G (BSPP) can be ordered. A bracket is included, and the K code adds a reverse/check valve. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application 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 this series as curves rather than a single rated figure, so we do not quote a number here. Tell us your line pressure, set pressure and expected air demand, and we will confirm the sizing from the datasheet on request before you order.
The A code fits an automatic drain, which expels accumulated condensate from the bowl on its own - useful on unattended or high-humidity installations. The same 600-size filter regulator can be ordered with a manual drain or with the default differential-pressure drain if you prefer to control draining yourself.
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.