The AirTAC GFR300-15MF2W 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 GFR300-15MF2W is a 300-size filter regulator that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 1/2 in PT port, a 5 um filter element (the finer of the two published grades), a manual drain bowl in polycarbonate, and an embedded square gauge scaled in psi. The standard regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi) with this manual-drain version, and the maximum working (inlet) pressure is 1.0 MPa (145 psi). Operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is published in 200, 300, 400 and 600 sizes with port options from 1/8 in to 1 in, a choice of 40 um standard or 5 um (W) filtration, differential-pressure, automatic or manual drains, square or external round gauges in MPa, psi or bar scales, and PT, G (BSPP) or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300-15MF2W 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 | Standard 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. Standard type, regulating 0.05 - 0.9 MPa (7 - 130 psi). 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)). |
| (blank) | Standard 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 bench-mounted pneumatic press or clamping fixture: the 5 um element keeps sludge and pipe scale out of the press valve, while the regulator holds a steady set pressure so cycle force stays repeatable. The psi gauge lets the operator read the setting directly.
Conditioning air for carton-forming and case-sealing cylinders on a packaging line: filtration and regulation in one body saves a panel slot, and the manual drain suits a line that is blown down at shift end. The 1/2 in PT port matches the main drop to a multi-cylinder manifold.
A wall-mounted drop feeding air tools and small actuators at an assembly cell: the regulator lets each cell run at its own set pressure instead of full line pressure, and the 5 um grade protects tool motors from water and particulate carried in the shop air main.
Size the unit by the port and flow step: 200, 300, 400 and 600 rise in both port size and flow capacity, and this 300 size sits at PT1/2. Because flow is published as curves and not as a single rated figure, send us your air demand and line pressure and we will confirm the sizing against the datasheet before you order. On filtration, the standard element is 40 um; the W code fitted here gives 5 um, the right choice where downstream valves and instruments need finer protection. On drainage, manual means someone opens the bowl drain periodically; automatic and differential-pressure drains are available on other codes if you prefer unattended water removal.
Other decodable choices: the square gauge here reads in psi, with MPa and bar scales and an external round gauge available as options; the thread is PT as standard, with G (BSPP) and NPT as order options; a mounting bracket is included with this code; and a reverse/check valve can be specified on codes carrying the K suffix, which this one does not have.
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 series as characteristic curves rather than a single rated figure, so there is no one number we can honestly quote. Tell us your air consumption and upstream pressure and we will confirm the flow from the datasheet curves to check the unit is correctly sized before you order.
The M in the code specifies a manual drain: condensate collected in the polycarbonate bowl is released by opening the drain when it builds up, which suits installations visited regularly. If you want water removal without operator attention, the same size is available with an automatic drain (code A) or a differential-pressure drain (blank code); the regulator adjustment range differs by drain type, with the manual-drain version covering 0.05-0.9 MPa (7-130 psi).
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.