The AirTAC GFR30015MLF2W AirTAC Filter Regulator 1/2 in PT, 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 GFR30015MLF2W is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure in one compact body. This 300-size unit is built with a 1/2 in PT port, a 5 um filter element (code W), a manual drain on the PC bowl, and low-pressure regulation for circuits that run set pressures well below standard working levels. The square pressure gauge is fitted and reads in psi, and the mounting bracket is included.
This is a genuine AirTAC part. The G-series spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, plus options for thread (PT standard, G and NPT as catalogue options), drain type, filter grade and gauge scale. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Rated flow is published as curves rather than a single figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR30015MLF2W AirTAC Filter Regulator 1/2 in PT, 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 — square, psi 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. 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). |
| F | Gauge shape: Square. 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. |
| (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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding a filtered, pressure-set supply to a small bench-press cylinder: the 5 um element keeps water and swarf out of the valve and seals, while the low-pressure regulator holds the gentle set pressure the forming job needs, read locally in psi.
Conditioning air to gripper and cylinder actuators on a carton-packing conveyor. The manual-drain bowl is bled during shift checks, and the regulator keeps the downline actuators on a stable set point for consistent pick-and-place motion.
Supplying instrumentation panels and pneumatic test benches that need 5 um air and a low, stable set pressure. The fitted psi gauge gives the operator a local reading, and the 1/2 in PT port ties into the rig's main drop.
Choose size by the air your line consumes: 300 is the mid-range of the G-series, with a 1/2 in PT port on this model, and the 200/400/600 sizes step port and flow capacity together. Because AirTAC publishes flow as curves rather than one rated number, send us your supply pressure, set pressure and air demand and we will confirm sizing from the datasheet before you order. This unit pairs a 5 um element (the finer of the two grades; 40 um is standard) with a manual drain, which suits attended installations where an operator bleeds the bowl during routine checks - automatic or differential-pressure drains suit unattended lines. The low-pressure regulator type is the pick for circuits set well below standard pressures. The fitted square gauge reads psi (MPa and bar scales exist), thread is PT with G and NPT as order options, and the bracket is included.
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 performance curves rather than a single rated figure, so we do not quote one number here. Send us your supply pressure, set pressure and air demand, and we will confirm the flow and sizing from the datasheet before you order.
The M in the code sets a manual drain: the PC bowl is bled by hand, which suits attended lines where an operator drains accumulated water during routine checks. For unattended or hard-to-reach installations, the same GFR300 body is available 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.