The AirTAC GFR300C10ALJC1T AirTAC Filter Regulator NPT3/8 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.
GFR300C10ALJC1T is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in one body. This configuration is the 300 size with a 3/8 in NPT thread, an automatic drain that discharges collected condensate without manual attention, the standard 40 um filter element, and the low-pressure regulator type for circuits that call for reduced settings. A round pressure gauge with an MPa scale is fitted, no mounting bracket is included, and no reverse/check valve is fitted. Max inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, drain choices (differential-pressure, automatic or manual), a 5 um element option (code W), gauge and thread options, and bracket fitment choices. At this 300 size the bowl is polycarbonate (PC); only the 600 size uses aluminium alloy. Flow is published as curves rather than a single rating, so ask us to confirm sizing and any datasheet figure for your application.
| Model | GFR300C10ALJC1T AirTAC Filter Regulator NPT3/8 Low-Pressure |
|---|---|
| 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) |
On a packaging line, this unit filters the plant air supply and holds a reduced, stable pressure at the clamp and hold-down cylinders, with the automatic drain clearing condensate between shifts without operator attention.
Feeding delicate grippers on an assembly-cell robot, the 40 um element stops particulate reaching the gripper valves while the low-pressure regulator type holds the gentler setting fragile products need.
On a laboratory or quality-control test bench, the unit conditions compressed air before it reaches instruments and fixtures, with the MPa round gauge giving the operator a direct reading of the regulated setting.
The real, decodable choices are: size and port (200/300/400/600, 1/8 to 1 in) stepped against the air demand of your line; drain type, where automatic suits installations that are not attended regularly, manual suits controlled service stops, and differential-pressure is the default; filter grade, 40 um standard or 5 um (code W) for finer particulate; gauge scale in MPa, psi or bar; thread, where PT is the standard and G and NPT are order options; and bracket fitment. This unit is the low-pressure regulator type; its exact adjustment range is not published, so confirm it with us. Because flow is published as curves rather than a single rating, send us your application conditions and we will confirm sizing 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 flow for this family as curves rather than a single rated figure, so we do not quote a number. Send us your inlet pressure, downstream demand and port size, and we will confirm the flow curve and correct sizing from the datasheet on request.
The A in the code sets the automatic drain: condensate that collects in the polycarbonate (PC) bowl is discharged without anyone opening a drain valve, which suits installations that run unattended. The alternatives are manual drain (code M) and the differential-pressure drain (blank), which is the default. This unit operates from -5 to 70 C and must not be used in freezing conditions.
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.