The AirTAC GFR300C15ALJC1T AirTAC Filter Regulator NPT1/2 Auto Drain 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 GFR300C15ALJC1T is a 300-size filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is a low-pressure regulator type with a 40 um standard filter element, an automatic drain that expels collected condensate without manual attention, and a fitted round pressure gauge scaled in MPa. The port is 1/2 in with NPT thread, and the unit is supplied without a mounting bracket.
This is a genuine AirTAC part from the G-series air-treatment line, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, PT as standard and G or NPT as order options. Flow is published as curves rather than a single rating, so ask us to confirm sizing and any datasheet figure against your application before ordering.
| Model | GFR300C15ALJC1T AirTAC Filter Regulator NPT1/2 Auto Drain |
|---|---|
| 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. |
|---|---|
| C1 | 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-C1 (two-unit set) |
Filtered, regulated air for the cylinder and actuator circuits of a cartoning or wrapping line, with the automatic drain keeping condensate off the machine floor between shifts.
A low-pressure regulator type feeding pneumatic clamps or holding fixtures where the circuit calls for regulated air below standard line settings, with the MPa gauge giving the operator a direct setting reference.
Clean, regulated air at the inlet of a laboratory or QC test bench, where the 40 um element protects downstream instruments and the round gauge supports repeatable pressure setpoints.
Choose the 300 size with its 1/2 in port when your line sits in the middle of the G-series flow range; step up to 400 or 600 for larger demand, or down to 200 for compact circuits. The automatic drain suits points that are hard to reach or run unattended; manual and differential-pressure drains are available in the family if you prefer scheduled or load-linked draining. The 40 um element is the standard grade; a 5 um element (code W) is the option where finer filtration is needed. The fitted round gauge reads in MPa; square embedded gauges and psi or bar scales are the other catalogue choices. PT is the standard thread, with G and NPT as order options, and a bracket can be added where this no-bracket unit needs panel fixing. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering.
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 flow for this series as curves, not as a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow and sizing from the datasheet on request before you order.
The A in the code selects the automatic drain, which expels collected condensate without operator attention. The GFR family is also available with manual or differential-pressure drains, so if your maintenance routine suits a different type, we can confirm the matching catalogue code.
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.