The AirTAC GFR300C15MLJC2WG AirTAC Filter Regulator G1/2 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.
The AirTAC GFR300 series combines water and particulate filtration with pressure regulation in a single body. This GFR300C15MLJC2WG is the low-pressure regulator type with a G1/2 (BSPP) port, a 5 um filter element, a metal bowl with manual drain, and a round pressure gauge reading in psi. It is supplied without a mounting bracket and without a reverse (check) valve.
This is a genuine AirTAC part from the GFR range, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch and a choice of drain, filter grade, gauge and thread. Maximum inlet pressure is 1.0 MPa (145 psi) and working temperature is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm the sizing figures from the datasheet for your application.
| Model | GFR300C15MLJC2WG AirTAC Filter Regulator G1/2 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) |
Point-of-use conditioning for a packaging line's directional valves and small cylinders: the 5 um element strips water and fine particles before the valves, and the low-pressure regulator holds the supply at the pressure the machine was set up for. The manual drain is emptied during scheduled line cleaning.
Feeding bench-top pneumatic test rigs that run below standard shop line pressure: the low-pressure type is the catalogue choice for such circuits, while the round psi gauge lets an operator read and log the set point directly at the bench.
Supplying sorting gates and diverters on a conveyor line: filtered, regulated air keeps the gate cylinders working between stops, and the psi gauge makes set-point checks part of the shift routine. The bowl is drained manually at planned maintenance windows.
Match the size and port step to the air demand of the circuit: this unit is size 300 with a G1/2 port, and the larger GFR sizes carry larger ports and more flow, which we confirm from the published curves before you order. The 5 um element (code W) suits circuits with finer valves or instruments; the 40 um standard element suits general supply. The drain here is manual, so the bowl is emptied as part of a maintenance routine; automatic and differential-pressure drains are available on other variants. The round gauge reads in psi; the embedded square gauge and MPa or bar scales are the other catalogue choices. Thread is G (BSPP) on this code, with PT and NPT available to order, and the mounting bracket is omitted (code J). Because flow is published as curves rather than a single rated figure, send us your application details and we will confirm sizing against it 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 the GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your application details - port size, upstream pressure and the demand of the equipment - and we will confirm the sizing from the datasheet before you order.
This code carries M for a manual drain: the metal bowl is drained by hand as part of a maintenance routine, which suits lines with scheduled stops. The same size is available with automatic or differential-pressure drains - ask us for the alternative model 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.