The AirTAC GFR300C15LF2TK 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 GFR300C15LF2TK is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is the low-pressure type (code L), intended where the required set pressure sits below the standard type's band; we confirm the exact adjustment range on request. It has a 1/2 in NPT port, 40 um standard filtration element, differential-pressure drain, an embedded square gauge reading in psi, and a reverse (check) valve fitted. Mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR series is offered in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options for thread (PT is the catalogue standard; G and NPT are ordered variants), drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um with code W), gauge scale (MPa, psi or bar) and a reverse valve. The size 300 bowl is polycarbonate (PC). Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and the datasheet for your application before ordering.
| Model | GFR300C15LF2TK 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) |
Feeding wrapper and sealer cylinders that run at a reduced set pressure, with the fitted check valve holding the downstream circuit while upstream supply dips. The 40 um element keeps water and pipe scale out of the valve bank.
Regulating clamp cylinders on a CNC fixture where the set pressure must sit low to avoid distorting the workpiece. The square psi gauge gives the operator a direct readout of clamp pressure at the cell.
Supplying conveyor-mounted air gates and pusher cylinders that cycle continuously at a low set pressure. The differential-pressure drain bleeds collected condensate as flow passes, and the polycarbonate bowl allows a quick visual check.
Size and port step up together with flow demand: this unit is size 300 with a 1/2 in NPT port (PT is the standard thread; G and NPT are ordered variants). Because flow is published as curves and not as a single rated figure, send us your flow and pressure requirements and we will confirm this size against the datasheet before you order. The remaining decodable choices are drain type (differential-pressure here; automatic or manual available), filter grade (40 um standard; 5 um with code W), gauge scale (this unit reads psi; MPa and bar are available), standard vs low-pressure regulator type (this unit is low-pressure, code L), the reverse/check valve (fitted here, code K), and the mounting bracket (included).
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 figure, so we do not quote a number here. Send us your required flow and working pressures and we will confirm sizing against the datasheet on request before you order.
L marks the low-pressure regulator type, selected where the set pressure sits below the standard type's range. The exact adjustment band for the low-pressure version is not published on the sheet we work from, so we confirm it on request. The rest of the code decodes as: size 300, 1/2 in NPT port, 40 um filtration element, differential-pressure drain, square gauge reading in psi, and a fitted reverse/check valve (K).
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.