The AirTAC GFR30015LC2WGK AirTAC Filter Regulator G1/2, 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/2" 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 GFR30015LC2WGK is a GFR-series filter regulator: filtration and pressure regulation combined in a single body, with a drain bowl but no lubricator. This size-300 unit is specified for a 1/2 in G (BSPP) port with G thread, and carries the W-grade 5 um filter element for finer water and particulate removal than the standard 40 um element. It is the low-pressure regulator type (code L), fitted with an external round gauge scaled in psi (code C2) and a reverse/check valve (code K); the bowl uses the differential-pressure drain as standard. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The polycarbonate bowl is standard at this size (aluminium alloy applies only at size 600), and a mounting bracket is included.
This is a genuine AirTAC part from the G-series air-treatment range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of drain types, 40 um or 5 um filtration, gauge styles and scales, PT, G or NPT threads, and single units or combined sets. AirTAC publishes flow for this series as curves rather than a single rated figure, so we confirm the flow and datasheet figures for your application on request.
| Model | GFR30015LC2WGK AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (G (BSPP) thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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 — round, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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. |
|---|---|
| 15 | Port size PT1/2". 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)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Fixture clamps and swing cylinders on an assembly line that run at reduced pressure get clean, regulated air from one compact body - the 5 um element protects seal kits, and the check valve holds the circuit against backflow when upstream supply dips.
Positioners and pilot-operated process valves need steady, filtered pilot air at modest pressure. The low-pressure regulator type, psi-scaled round gauge and 1/2 in G port suit a valve-actuation panel, with the differential-pressure drain handling condensate as the line works.
Packaging machines with air cylinders, grippers and low-pressure actuation circuits draw from a shared 1/2 in drop; this unit filters water and fine particulate to 5 um and regulates the header pressure, with the included bracket simplifying mounting beside the machine.
Size and port are the first choice: this is size 300 with a 1/2 in G-thread port; step up to size 400 or 600, or down to 200, if your line's flow demand points elsewhere - we can check the published flow curves against your application before you order. Filtration here is the finer 5 um element (code W); the standard grade is 40 um if your downstream equipment does not need the finer rating. The regulator is the low-pressure type (code L), so confirm your working pressure band with us - the exact adjustment range for the low-pressure version is confirmed on request. The round gauge is scaled in psi; embedded square gauges and MPa or bar scales are the alternatives. The K code adds a reverse/check valve, useful where backflow protection matters downstream. Thread is G (BSPP); PT is the catalogue standard and NPT is available to order. A mounting bracket is included. Drain is the differential-pressure type; automatic (A) and manual (M) drains are the other catalogue options.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC does not publish a single rated flow figure for this unit - flow is given only as curves in the catalogue. We will confirm the flow figures and the full datasheet against your application on request, so you can size the unit before ordering.
The L code makes this the low-pressure regulator version of the GFR300, intended for circuits that run below standard regulating bands - we confirm the exact adjustment range on request. The K code means a reverse/check valve is fitted, preventing backflow through the unit. Both are standard catalogue options, as are the 5 um element (W), the psi-scaled round gauge (C2) and the G thread.
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.