The AirTAC GFR300C15LF1T AirTAC Filter Regulator 1/2 NPT 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 GFR300C15LF1T is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit has 1/2 in NPT ports, a 40 um standard filter element, a differential-pressure drain, an embedded square gauge scaled in MPa, and the included mounting bracket. It is the low-pressure (L) regulator type, and no reverse/check valve is fitted. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing), with compressed air as the only medium.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options including a 5 um filter element (code W), automatic or manual drains, alternative gauge scales in psi or bar, and G (BSPP) or NPT threads in place of the PT standard. Flow is published as curves rather than a single rated figure, so ask us to confirm datasheet and sizing figures for your application on request.
| Model | GFR300C15LF1T AirTAC Filter Regulator 1/2 NPT 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) |
Supply filtered, regulated air to pneumatic clamps and fixtures that work at reduced pressure, with the built-in gauge giving the operator a direct pressure readout at the drop.
Feed pick-and-place cylinders and product diverters on a packaging conveyor from a single point where water and particulate are stripped out before they reach the directional valves.
Provide clean, low-pressure regulated air to dosing, coating or mixing apparatus where a stable, gentle supply pressure matters more than high flow.
Choose the size and port to match the flow your line needs: this unit is size 300 with 1/2 in NPT ports, one step up from size 200 and below sizes 400 and 600. The drain on the bowl can be differential-pressure (standard, as fitted here), automatic (code A) or manual (code M). The filter element is 40 um as standard; specify W for the 5 um grade. Gauge choices are the embedded square gauge fitted here (MPa scale) or an external round gauge in MPa, psi or bar scales. Thread is NPT on this model; PT is the AirTAC standard and G (BSPP) is an order option. A bracket is included (code J deletes it). 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 GFR300 flow as curves rather than a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the sizing against the datasheet curves on request.
The L in GFR300C15LF1T marks the low-pressure regulator type rather than the standard one. The exact regulation range for this variant is not published in the material we hold, so ask us to confirm it on request before ordering.
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.