The AirTAC GFR300C15MF2WK AirTAC Filter Regulator PT1/2, 5 um is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR300C15MF2WK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is a 300-size unit with a PT1/2 port, a 5 um filter element (code W) for finer filtration than the standard 40 um grade, a manual drain on the polycarbonate bowl, an embedded square gauge scaled in psi, a reverse/check valve fitted, and a mounting bracket included. The standard-type regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi) on this manual-drain version, the maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, drain choices (differential-pressure, automatic or manual), 40 um or 5 um filtration, gauge and scale options including an external round gauge, and G (BSPP) or NPT thread variants to order. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application on request.
| Model | GFR300C15MF2WK AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard 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 0.15 - 0.9 MPa (20 - 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. |
|---|---|
| C1 | Port size See datasheet. This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Point-of-use preparation on the air drop feeding a CNC machining cell: the 5 um element removes water and fine particulate before the regulated supply runs clamps, tool-change cylinders and air-blast nozzles.
Filtered, regulated air for the stopper, pusher and diverter cylinders on a bottling or packaging conveyor, with the psi gauge letting line technicians set and check working pressure at the line.
A filter regulator at the point of use in an assembly plant, giving each workstation a set, stable supply pressure downstream of the plant compressor ring, with the check valve holding the setting if supply dips.
Choose the size and port step against the air demand of the circuit: this 300-size unit with a PT1/2 port sits mid-range in the GFR line, which runs from 200 (1/8 and 1/4 in ports) up to 600 (3/4 and 1 in). Drain type is a real choice: this unit has a manual drain, which also gives the wider 0.05-0.9 MPa (7-130 psi) regulation range; automatic and differential-pressure drain variants are available. The 5 um element (code W) suits circuits that need finer filtration than the standard 40 um grade. The square gauge here reads in psi, with MPa and bar scales as alternatives. Thread is PT as standard, with G (BSPP) and NPT as order options, and a bracket is included. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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 GFR flow as curves, not as a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow and datasheet figures for this exact model on request.
This unit has a manual drain (code M): condensate is emptied by hand from the bowl rather than automatically. On a manual-drain filter regulator the regulation range is 0.05-0.9 MPa (7-130 psi). If you want condensate removed without operator attention, ask about the automatic or differential-pressure drain variants.
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.