The AirTAC GFR300C15MC2WTK AirTAC Filter Regulator NPT 1/2 in 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 GFR300C15MC2WTK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is built around a 1/2 in NPT port on the 300 size, with a manual drain for the condensate and dirt collected in the metal bowl. The filter element is the fine 5 um grade (code W), a round gauge reading in psi is fitted, and a reverse (check) valve is included so the downstream pressure is held if the upstream supply dips. A mounting bracket is supplied.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, PT as the standard thread and G (BSPP) or NPT as order options, a choice of manual, automatic or differential-pressure drains, 40 um standard or 5 um (W) elements, and gauge or no-gauge variants. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Because flow is published as curves rather than a single rating, we confirm the datasheet figures for your application on request.
| Model | GFR300C15MC2WTK AirTAC Filter Regulator NPT 1/2 in |
|---|---|
| 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 conditioning on the 1/2 in supply feeding a CNC machining cell: the 5 um element and the regulator in one body clean the air and set the pressure for clamps, tool changers and air-powered peripherals.
Conditioning the air feeding carton sealers, case packers and cylinder-driven packaging stations, where the manual drain suits a shift-based maintenance routine and the psi gauge lets operators set and check line pressure.
Supplying pneumatic diverters, stoppers and lift-and-locate units along a conveyor line, with the fitted check valve holding the regulated pressure at the station if the upstream supply dips.
Choose the size and port against the air demand of the line: the 300 size with a 1/2 in NPT port sits mid-range in the GFR series, which steps from 200 up to 600 as port and flow capacity grow. Drain type is a real decision: this unit has a manual drain, which also gives the widest regulator adjustment range of 0.05-0.9 MPa (7-130 psi); automatic and differential-pressure drain versions are available with a 0.15-0.9 MPa (20-130 psi) range. The filter grade here is the fine 5 um element (40 um is the standard alternative). The fitted round gauge reads in psi; embedded square gauges with MPa, psi or bar scales are the catalogue alternative. Thread is NPT on this unit, with PT standard and G (BSPP) to order, and a mounting bracket is included. Flow is published as curves, not a single rated figure, 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 rather than a single rated figure, so no single flow number is quoted here. Tell us your application and we will confirm the flow and datasheet figures for this model on request before you order.
This unit has a manual drain, so condensate collected in the bowl is released by hand as part of a maintenance routine. It also gives the widest regulator adjustment range: 0.05-0.9 MPa (7-130 psi), against 0.15-0.9 MPa (20-130 psi) for automatic or differential-pressure drain versions. Those drain types can be ordered instead if you prefer automatic moisture removal.
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.