The AirTAC GFR300C15LF2K AirTAC Filter Regulator 1/2 in PT 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 GFR300C15LF2K is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and holds a regulated downstream pressure. This configuration is the 300 size with a 1/2 in PT port, the low-pressure regulator type, the standard 40 um filter element and a differential-pressure drain, with an embedded square gauge reading psi fitted as standard. The K code adds a reverse (check) valve, and a mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, PT thread as standard and G or NPT as order options, plus decodable choices for drain type, filter grade (40 um standard, 5 um with W), gauge scale and bracket. Flow is published as curves rather than a single rating, so ask us to confirm sizing and any datasheet figure for your application on request.
| Model | GFR300C15LF2K AirTAC Filter Regulator 1/2 in PT |
|---|---|
| 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, low-pressure regulated air to the clamping cylinders on a stamping press cell, where workpieces must be held at a gentle, stable setpoint rather than full line pressure.
Conditioning the supply to a CNC machining centre's pneumatic tool-clamp and chip-door circuits, keeping water and swarf-laden particles out of the valves while holding the pressure the clamp design expects.
Supplying the diverter and gate cylinders on a packaging conveyor, where the check valve holds the downstream side in position if the upstream supply dips during a shift.
On this code, the 300 size with the 1/2 in PT port sets the connection - step up or down a size if your header and drop piping differ, keeping the port in line with the flow your circuit needs. The L selects the low-pressure regulator type, intended for circuits whose setpoint sits in the lower band; the exact regulation range for the low-pressure type is not published, so confirm your setpoint with us. Drain is the differential-pressure type (M would be manual, A automatic), the element is the standard 40 um grade (W gives 5 um), the gauge is the embedded square type reading psi (MPa, psi and bar are the catalogue scale choices), and K adds a reverse/check valve. Flow is published as curves, not a single rating - send us your application and we will confirm sizing 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 GFR-series flow as curves rather than a single rated figure, so we do not quote a number here. Send us your line's flow and pressure requirements and we will confirm sizing for this 300-size, 1/2 in PT unit from the datasheet on request.
The L code selects the low-pressure regulator variant, intended for circuits whose setpoint sits in the lower part of the range. The exact regulation range for the low-pressure type is not published in the data we hold, so tell us your setpoint and we will verify it against the datasheet before you order.
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.