The AirTAC GFR300C15MLJC1T AirTAC Filter Regulator NPT1/2 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 GFR300C15MLJC1T is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This size 300 unit is configured with a 1/2 in NPT port, a 40 um standard filter element, a manual drain on the metal bowl, and the low-pressure regulator type fitted with an external round gauge scaled in MPa. No mounting bracket and no reverse/check valve are included in this configuration. Maximum 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 GFR300 series belongs to the G-family air-treatment line, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and catalogue options including automatic, manual or differential-pressure drains, a finer 5 um element (code W), square or round gauges scaled in MPa, psi or bar, PT, G or NPT threads, and mounting brackets. Flow for this series is published as curves rather than a single rating, so ask us to confirm the datasheet figures and sizing for your application before ordering.
| Model | GFR300C15MLJC1T AirTAC Filter Regulator NPT1/2 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) |
Sits ahead of clamping cylinders that must hold workpieces at a reduced, manually verified setting, with the 40 um element keeping particles out of the fixture's valve and seal package.
Filters and regulates the air feeding spray guns and atomising nozzles where the low-pressure regulator type and a manual-drain bowl suit a line that is checked as part of a routine.
Conditions the air feeding pick-and-place and sealing actuators on a packaging machine, combining water and particulate removal with low-pressure regulation in one body to save panel space.
The choices on this unit are fixed by the code: size 300 with a 1/2 in NPT port, manual drain, 40 um filtration, low-pressure regulation, a round MPa gauge, and no bracket. If your installation instead needs a different port step, automatic or differential-pressure draining, finer 5 um filtration, a psi or bar gauge scale, a PT or G thread, or a mounting bracket, each is available as a separate catalogue code within the same GFR300 series. Because rated flow is published only as curves for this family, send us your application's flow and pressure requirements and we will confirm the correct 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 flow for the GFR300 series as curves, not as a single rated figure, so we do not quote a number here. Send us your flow and pressure requirements and we will confirm the datasheet figures and check the sizing against your application on request.
The M in the code specifies a manual drain on the bowl, so accumulated condensate is released by operating the drain by hand rather than automatically. It suits installations checked on a routine; if you need automatic or differential-pressure draining, those are separate catalogue codes in the same series.
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.