The AirTAC GFR300C15MLC2G 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 GFR300C15MLC2G is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is the low-pressure regulator type, built with a G1/2 port, a manual drain, a 40 um filter element and a metal bowl. An external round gauge graduated in psi is fitted and a mounting bracket is included. 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 is offered with a choice of drain type (manual, automatic or differential-pressure), filter grade (40 um standard or 5 um with code W), embedded square or external round gauges in MPa, psi or bar scales, and PT, G or NPT threads. AirTAC publishes flow as curves rather than a single rated figure, so ask us to confirm sizing and full datasheet figures for your application on request.
| Model | GFR300C15MLC2G 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) |
Feeds filtered, low-pressure regulated air to clamping fixtures on a CNC machining centre, where the manual drain suits a shop that runs scheduled daily checks.
Installed ahead of the directional valves on a packaging line so carton-sealing and case-turning cylinders receive clean air at a stable low setting.
Conditions the air supply for gate and stopper actuators on a bottling line, with the 40 um element protecting valve seals from water and particulate carryover.
Start from the size and port: the 300 size in GFR300C15MLC2G carries a 1/2 in port, so step up or down in the 200/300/400/600 range if your line needs a different connection or more flow capacity. Then choose the drain: this unit is manual (condensate released by hand), while automatic and differential-pressure drains suit unattended installations. Pick the filter grade - 40 um standard here, 5 um (code W) for finer protection. Gauge options are the embedded square gauge or an external round gauge in MPa, psi or bar scales; this unit carries a round psi gauge. PT is the AirTAC standard thread with G and NPT as orderable options; a bracket is included with this unit. Because flow is published as curves and not as 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 GFR300 flow data as curves, not as a single rated figure, so we do not quote a number here. Send us your application details - port size, downstream consumption and required pressure - and we will confirm the flow figures and full datasheet on request.
This unit is specified with a G (BSPP) parallel thread at the 1/2 in port. PT is the AirTAC standard thread, and G or NPT are catalogue options that can be ordered as an alternative specification - tell us which thread your pipework needs and we will quote the matching code. The 1/2 in port size itself is set by the 300 size in the model number.
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.