The AirTAC GFR30015MLC2WTK AirTAC Filter Regulator NPT1/2, 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 GFR30015MLC2WTK is a size-300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body, so one unit does the job of a filter and a regulator. This configuration is built with a 1/2 in NPT port, a 5 um filter element (the finer of the two published grades), a manual drain on the polycarbonate bowl, and a reverse/check valve fitted. It is the low-pressure regulator type, and the pressure is read on an external round gauge with a psi scale. Maximum working (inlet) pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600, with port sizes from 1/8 to 1 in, G (BSPP), NPT or PT threads, manual, automatic or differential-pressure drains, 40 um or 5 um elements, square or round gauges with MPa, psi or bar scales, and an optional reverse/check valve. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR30015MLC2WTK AirTAC Filter Regulator NPT1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT 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. |
| (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. |
| T | NPT 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) |
Point-of-use conditioning on a packaging line: the 5 um element strips water and fine particles before the air reaches the machine's valves and cylinders, while the regulator holds a steady low-pressure supply to the actuators that seal, fold and carton the product.
Mounted at the drop to a conveyor section, the unit filters the shop air feeding blow-off nozzles and clamping cylinders and keeps the regulated pressure stable as sections start and stop, with the manual drain letting maintenance clear accumulated water at the end of a shift.
On a lab test bench or pilot rig, the 5 um grade protects sensitive instruments and pneumatic fixtures from water and particulate carryover, and the round psi gauge gives the operator a clear, direct readout of the regulated supply pressure during a test run.
Start with the port and size: this unit is a 300-size body with a 1/2 in NPT port, so step up or down through the 200/300/400/600 range to match the line size and the flow your circuit needs. The 5 um element (code W) is the finer published grade; the standard alternative is 40 um, so choose 5 um where downstream valves and cylinders need cleaner air. Drain here is manual, meaning an operator drains the bowl; automatic and differential-pressure drain options exist if you would rather not rely on a routine. The gauge on this code is the external round type with a psi scale; an embedded square gauge is the standard fitting, and MPa or bar scales can be ordered. Thread is NPT on this code, with G (BSPP) and PT available as order options, and the mounting bracket is included. The low-pressure regulator type is selected by the L code; its exact adjustment range is not published on the sheet we transcribe, so confirm it with us before ordering. Flow is published as curves, not a single rated figure, so ask us to confirm sizing against your application 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 curves, not as a single rated number, so we do not quote a rated flow, Cv or SCFM figure for this unit. Send us your line size and required flow and we will confirm the sizing against the datasheet curves on request before you order.
The M in the code selects a manual drain: accumulated water is released by hand from the polycarbonate bowl, which suits stations that are checked as part of a routine; automatic and differential-pressure drains are available if you prefer unattended draining. The L code selects the low-pressure regulator type; its exact adjustment range is not published on the sheet we transcribe, so confirm it with us on request.
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.