The AirTAC GFR300C15LF2W AirTAC Filter Regulator PT1/2, 5 um 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 GFR300C15LF2W is an AirTAC GFR-series filter regulator: a 5 um filter element and a pressure regulator combined in one body, so the compressed air is cleaned of water and particulate and then held at a set pressure in a single installation. This unit is built for 1/2 in PT threaded ports, uses the differential-pressure drain that discharges condensate as the air flows through, and carries the embedded square gauge reading in psi. It is the low-pressure regulator type, and the metal bowl is supplied with a mounting bracket.
This is a genuine AirTAC part from the GFR300 size family, one of four sizes (200, 300, 400, 600) that step up in port and flow capacity, with manual, automatic or differential-pressure drains, 40 um or 5 um elements, MPa, psi or bar gauge scales, and PT, G or NPT threads available as order options. Max working (inlet) pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Because AirTAC publishes flow as curves rather than a single rating, we confirm the datasheet and sizing figures for your application on request.
| Model | GFR300C15LF2W AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| 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) |
Mounted at the drop ahead of a CNC fixture circuit, this unit filters the shop air to 5 um before it reaches the clamping valves and holds the workholding pressure at the set point the operator chooses, with the psi gauge giving a direct read at the machine.
On a packaging line where air nozzles clear dust and loose film from containers before labelling, this filter regulator cleans the supply and keeps the nozzle circuit at a steady low set pressure, while the differential-pressure drain handles the condensate the line generates.
In a paint or coating booth where spray guns run below normal shop pressure, the low-pressure regulator type lets the finisher tune the gun supply down from the header line, with the 5 um element keeping oil and particle contamination out of the finish.
Size and port: the GFR300 sits in the middle of the 200/300/400/600 range and this unit takes 1/2 in PT threads; step up or down a size when the flow curve for your air consumption says so - we will check the curve with you. Drain: this configuration uses the differential-pressure drain, the catalogue default; automatic (A) and manual (M) drains are alternative codes. Filtration: the W code fits the 5 um element where finer particle removal is needed; the standard grade is 40 um. Regulation: this is the low-pressure type (code L); its adjustment range is not published as a single figure, so we confirm it on request. Gauge: the embedded square gauge here reads psi; MPa and bar scales and an external round gauge are options. Threads: PT is the standard on this model, with G (BSPP) and NPT available as order options, and the mounting 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 GFR300 as curves rather than a single rated figure, so there is no one l/min or SCFM number we can quote for this unit. Send us your operating pressure and air consumption and we will confirm the sizing from the datasheet on request before you order.
It is the filter-grade code: this unit carries the optional 5 um element instead of the 40 um standard grade. Choose 5 um where downstream valves and instruments need finer particle removal. The drain on this configuration is the differential-pressure type, and automatic and manual drains are available as alternative codes.
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.