The AirTAC GFR30015MLJC2WGK 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR30015MLJC2WGK is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 300-size unit is built for a G1/2 port, carries a 5 um filter element (code W) for finer filtration than the 40 um standard, and uses a manual drain on the polycarbonate bowl, so condensate is released when an operator opens the drain rather than automatically. It is a low-pressure type regulator, is fitted with a round gauge reading in psi, and includes a reverse (check) valve. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
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 differential-pressure, automatic or manual drains, 40 um or 5 um elements, square or round gauges with MPa, psi or bar scales, G or NPT threads, brackets and reverse valves. Flow is published as curves rather than a single rated figure, so ask us to confirm flow and datasheet figures for your application before ordering.
| Model | GFR30015MLJC2WGK AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (G (BSPP) thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (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) |
On a fixture or clamping line that must run at reduced pressure to protect a delicate workpiece, this filter regulator cleans the air, holds the set pressure and its check valve holds the downstream state if supply dips.
On a cartoning or wrapping machine with many small actuators, the 5 um element keeps fine particles out of directional valves and cylinders while the regulator sets a stable supply pressure for the whole frame.
For bench instruments or test rigs fed from a shop-air drop, the 5 um filtration and a manually set, gauge-monitored pressure give a cleaner, controlled air supply, with the manual drain emptied during routine checks.
Choose the size and port step against the air demand of the circuit: this unit is 300 size with a G1/2 port, one step up from 1/4 and 3/8 in the GFR range, with 200 and 400 sizes either side. Because flow is published as curves and not a single rating, ask us to confirm sizing against your application before ordering. The decodable choices on this unit are already fixed: a 5 um element for finer filtration, a manual drain where an operator can attend the bowl, a low-pressure regulator type, a round psi gauge, a reverse (check) valve, G thread, and no mounting bracket. The exact adjustment range of the low-pressure type is not published in the material we hold, so confirm it with us if your set pressure is critical. If you need automatic draining, a 40 um element, a square embedded gauge, a different scale, PT or NPT thread, or a bracket, those exist as other codes in the same series.
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 publishes flow for this series as curves, not as a single rated figure, so we do not quote a l/min, m3/h or SCFM number. Tell us your application and we will confirm the flow and full datasheet figures for this exact model on request before you order.
The M and W in the code set those options: M is a manual drain, so condensate collected in the polycarbonate bowl is released by hand instead of automatically, and W is the 5 um filter element, finer than the 40 um standard. If you cannot attend the bowl regularly, choose a code with an automatic or differential-pressure drain instead.
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.