The AirTAC GFR300C15LF2 AirTAC Filter Regulator PT1/2, 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 GFR300C15LF2 is a GFR-series filter regulator: water-and-particulate filtration and pressure regulation combined in one body, with a drain bowl but no lubricator. This configuration is built around PT1/2 (1/2 in) PT-threaded ports, 40 um standard filtration, a differential-pressure drain and the low-pressure regulator type (L). A square pressure gauge scaled in psi is fitted, the bowl is metal, 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 in the GFR300 size of a family that spans sizes 200, 300, 400 and 600, with port options from 1/8 to 1 in, G and NPT thread variants, 5 um (W) filtration, automatic or manual drains, gauge scale choices and bracket options. AirTAC publishes flow only as curves rather than a single rated figure, so we confirm flow and other datasheet figures on request before you order.
| Model | GFR300C15LF2 AirTAC Filter Regulator PT1/2, 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) |
Feeding filtered, regulated air to the cylinder-actuated capping and filling heads on a beverage bottling line, with the differential-pressure drain handling condensate that collects during long production runs.
Supplying clean, regulated low-pressure air to a pneumatic press or clamping fixture at a work cell, where the fitted square psi gauge gives the operator a direct setpoint readout at the machine.
Point-of-use air preparation for diverter and stopper cylinders along a packaging conveyor, where the 40 um element keeps pipe scale and debris out of the directional control valves.
The real choices on this family: step the size (200/300/400/600) and its port (PT1/2 here) against the air demand of the machine; pick the drain - differential-pressure as fitted here, automatic, or manual; pick the filter grade (40 um standard, 5 um with code W) where finer protection is needed; choose the gauge scale (MPa, psi or bar - psi on this unit); and order PT, G or NPT thread to match the piping. A bracket is included. Flow is published as curves, not a single rating, so 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 number, so no flow figure is quoted here. Tell us your working pressure and air demand and we will confirm the sizing from the datasheet on request.
The L marks the low-pressure regulator type, used where the set pressure sits below what the standard regulator covers. The exact adjustment range for this low-pressure variant is not published in the datasheet we hold, so confirm your setpoint with us before ordering. Everything else decodes normally: PT1/2 ports, 40 um filtration, differential-pressure drain, square psi gauge, metal bowl and included bracket.
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.