The AirTAC GFR300C08ALJC1TK AirTAC Filter Regulator NPT1/4 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 AirTAC GFR300C08ALJC1TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is size GFR300 with 1/4 in NPT ports, an automatic drain that expels collected condensate without manual attention, a 40 um standard filter element, and a low-pressure regulator type. It carries an external round gauge reading in MPa, a built-in check (reverse-flow) valve, and is supplied without a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options including manual or differential-pressure draining, a 5 um element (code W), square or round gauges with MPa, psi or bar scales, and PT, G (BSPP) or NPT threads. Rated flow is published as curves rather than a single figure, so ask us to confirm sizing and any datasheet figure for your application before ordering.
| Model | GFR300C08ALJC1TK AirTAC Filter Regulator NPT1/4 |
|---|---|
| Series | GFR300 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 | PC |
| 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.
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| C0 | Port size See datasheet. This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (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 | GFR300 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C0 (two-unit set) |
Point-of-use air preparation for the cylinder runs on a cartoning or case-packing machine: water and pipe scale are drained off automatically while the low-pressure regulator holds a stable, gentle supply to the pick-and-place actuators.
Feeding bench-top process apparatus or an analytical instrument enclosure that runs on low-pressure compressed air, with the round MPa gauge giving a direct local pressure reading and the check valve guarding the circuit against backflow.
Supplying blow-off nozzles along a bottling conveyor: the 40 um element stops rust and pipe scale reaching the jets, the automatic drain keeps condensate out of the blast air, and the check valve holds the circuit when the upstream supply dips.
The real choices when specifying a GFR unit: step through sizes 200 / 300 / 400 / 600 and their port sizes (1/8 to 1 in) to match the flow your line needs; choose the drain - automatic (this unit), manual, or differential-pressure; choose the 40 um standard element or the finer 5 um W option; pick the gauge - an embedded square gauge as standard or an external round gauge, with MPa, psi or bar scales; and order the thread you need - PT is the standard, with G (BSPP) and NPT as catalogue options (this unit is NPT). Brackets are optional on GFR. Because rated flow is published only as curves, not a single number, send us your pressure and flow requirements and we will confirm the right size against the datasheet before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. 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 a number here. Tell us your working pressure and required flow and we will confirm against the datasheet that this 1/4 in size is correct for your application before you order.
This unit carries code A: the bowl drains collected condensate automatically, which suits unmanned cells or hard-to-reach points. Manual and differential-pressure drain versions exist in the same series - tell us your preference when ordering. The standard element is 40 um; a finer 5 um element (code W) is also available.
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.