The AirTAC GFR30015MLJC2WK AirTAC Filter Regulator PT1/2, 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 GFR300 series combines water and particulate filtration with pressure regulation in a single body, so one unit both cleans the compressed air and sets a stable downstream pressure. This configuration, GFR30015MLJC2WK, is the size 300 unit with PT1/2 (1/2 in) ports, the fine 5 um filter element (code W, in place of the 40 um standard), a manual drain on the bowl, the low-pressure regulator type, a round pressure gauge with a psi scale, and a reverse/check valve fitted. It is ordered without a mounting bracket. The polycarbonate bowl lets you see accumulated condensate, and the manual drain is emptied by hand as part of routine checks.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with a choice of port sizes, PT, G or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um elements, gauge styles and scales, and standard or low-pressure regulator types. Rated flow for this series is published as curves rather than a single figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR30015MLJC2WK AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (PT 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. |
| (blank) | PT 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) |
Filter and regulate the air feeding a bank of directional control valves, with the 5 um element protecting valve internals and the low-pressure regulator holding a gentle set pressure for sensitive actuation.
Condition the supply to clamp cylinders where fine filtration keeps spool and seal surfaces clean and the regulator sets a repeatable, lower clamping force, with the psi gauge read directly at the unit.
Clean and regulate air to stopper and pusher cylinders along the line, using the manual drain for end-of-shift condensate removal and the check valve to hold downstream pressure if supply dips.
Start with the port: this unit is PT1/2, and moving one size step up or down changes both the port and the flow path, so match the size to the air demand of the circuit. The 5 um element (code W) suits applications that need finer particle removal than the 40 um standard; the trade-off is a denser element to monitor. The manual drain means an operator opens the bowl drain periodically, unlike the automatic or differential-pressure options that discharge condensate without hands-on attention. The gauge here is the round type with a psi scale; embedded square gauges and MPa or bar scales are the alternatives. PT is the standard thread, with G (BSPP) and NPT available as order options, and this code omits the mounting bracket. Because flow for the GFR series is published as curves and not a single rating, send us your application details 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as performance curves rather than a single rated figure, so we do not quote one number. Send us your application details and we will confirm the datasheet and check the sizing for you before you order.
M is the manual drain: condensate collected in the polycarbonate bowl is released by hand when you open the drain. The alternatives are the automatic drain, which discharges on its own, and the differential-pressure drain, which is the default. Manual drain suits installations where an operator is on site regularly.
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.