The AirTAC GFR300C15LJC2WGK AirTAC Filter Regulator G1/2, 5 um 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 GFR300C15LJC2WGK is a filter regulator: water and particulate removal plus pressure regulation combined in a single body, with a drain bowl but no lubricator. This configuration is built around a G1/2 (BSPP) 1/2 in port on the 300 size, a 5 um filter element (the W grade, tighter than the 40 um standard), a differential-pressure drain, and the low-pressure (L) regulator type for circuits that run below standard regulator settings. It comes with a round psi gauge fitted, a reverse/check valve installed, and no mounting bracket; the bowl is metal.
This is a genuine AirTAC part from the GFR300 series. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and is ordered with choices of thread (PT standard; G and NPT as options), drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um optional), gauge type and scale, and bracket. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing figures for your application before ordering.
| Model | GFR300C15LJC2WGK AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| 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) |
Point-of-use filtered, low-pressure regulated air for the cylinder bank on a carton-forming packaging machine, with the fitted check valve holding the downstream circuit if upstream pressure dips.
5 um filtration ahead of low-pressure air knives and spray heads on a coating line, where the finer element helps keep particulate out of the finish at the point of use.
Regulated low-pressure supply to pneumatic take-up and tensioning stations on a conveyor line, with the G1/2 port feeding larger-bore actuators along the run.
Choose the size and port against the air demand of the circuit: this unit is the 300 size with a 1/2 in G-thread port; larger sizes carry larger ports and more flow. The 5 um W-grade element suits points where finer particulate control matters; the 40 um standard grade remains available in the family. Drain here is differential-pressure (the bowl drains as pressure drops at shutdown); automatic and manual drains are the alternatives. The low-pressure (L) regulator type is selected where the circuit runs below standard regulator settings - its exact range is not published, so confirm it with us. The round psi gauge is fitted; the embedded square gauge and MPa or bar scales are the other options. PT is the standard thread, with G and NPT as order options, and no mounting bracket is included with this unit. 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 the GFR series as curves rather than a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow and datasheet figures for this exact configuration on request.
This is the low-pressure (L) type of the GFR300 series, intended for circuits that run below standard regulator settings. The exact range for the L type is not published in the catalogue sheet we work from, so we confirm it on request rather than estimate it. The unit otherwise carries the family maximum inlet pressure of 1.0 MPa (145 psi).
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.