The AirTAC GFR600C20MLC3TK AirTAC Filter Regulator NPT3/4 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 GFR600C20MLC3TK is an AirTAC GFR filter regulator: a 40 um filter and a pressure regulator combined in one body, size 600 with a 3/4 in NPT port. It is the low-pressure type, built for circuits run below standard regulator settings; the exact adjustment range for this variant is not published, so we confirm it on request. Max inlet pressure is 1.0 MPa (145 psi) and working temperature is -5 to 70 C (non-freezing). Water and particulate collect in the aluminium alloy bowl and are released by hand through the manual drain, the fitted round gauge reads in bar, a reverse/check valve is fitted, and 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 in to 1 in, in PT (catalogue standard), G and NPT threads, with manual, automatic or differential-pressure drains, 40 um standard or 5 um (W) filter grades, and square or round gauges scaled in MPa, psi or bar. Flow is published as curves rather than a single rating, so we confirm flow and datasheet figures for your application on request.
| Model | GFR600C20MLC3TK AirTAC Filter Regulator NPT3/4 |
|---|---|
| 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) |
Point-of-use conditioning on a stamping press drop: the 40 um element strips water and swarf carried in the shop air, and the low-pressure regulator holds a steady supply pressure to the press air circuit, with the bar gauge giving the setter a direct reading at the drop.
Feeding cylinders and grippers on a packaging conveyor line: the GFR600C20MLC3TK cleans the air and regulates it in one body, so downstream valves on the line see stable, dry air at a set low pressure, and the operator drains the aluminium bowl by hand at shift checks.
Low-pressure air circuits on textile machinery: the low-pressure type regulator suits circuits run below standard settings, the reverse/check valve holds the set pressure against supply dips, and the manual drain lets maintenance bleed collected water during scheduled rounds.
The real choices on this family are the size and port step, the drain, the filter grade, the gauge and the thread. Step up from size 300 (1/2 in) to size 600 (3/4 in) when the equipment's air demand outgrows the smaller port; because flow is published as curves and not as a single rating, ask us to check the curve against your demand before ordering. Drains come as manual (this unit, code M), automatic (A) or differential-pressure (blank); filter grades are 40 um standard or 5 um with code W. Gauges are an embedded square gauge as standard or an external round gauge, scaled in MPa, psi or bar - this unit carries a round gauge reading in bar. Thread is PT as the catalogue standard, with G and NPT as order options (this unit is NPT); a mounting bracket is included.
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.
Flow for the GFR600 series is published as curves, not as a single rated figure, so we do not quote a number here. Send us your line pressure, the downstream pressure you need and the air demand of your equipment, and we will confirm sizing against the AirTAC datasheet on request.
The M means water collected in the aluminium alloy bowl is released by hand: an operator opens the drain at the bottom of the bowl. If you would rather not rely on manual checks, the same size 600 filter regulator is available with automatic (A) or differential-pressure (blank) draining - ask us to quote the variant.
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.