The AirTAC GFR300C15MF2WT AirTAC Filter Regulator NPT1/2 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 GFR300C15MF2WT is an AirTAC GFR300 filter regulator: a 5 um filter element and a pressure regulator combined in one body above a single manual-drain bowl. This configuration takes a 1/2 in NPT port, carries a metal bowl, and its embedded square gauge reads in psi. The standard regulator adjusts outlet pressure across 0.05-0.9 MPa (7-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the unit operates from -5 to 70 C in non-freezing compressed air. Because filtration and regulation share one body, it does the work of a separate filter and regulator in half the panel space; it does not lubricate the air, so add a lubricator downstream if your cylinders need oil mist.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options include a 40 um or 5 um element, manual, automatic or differential-pressure drain, square or round gauges with MPa, psi or bar scales, a reverse/check valve, and G, NPT or PT threads. We confirm flow and other datasheet figures on request, since flow is published as curves rather than a single rating.
| Model | GFR300C15MF2WT AirTAC Filter Regulator NPT1/2 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) |
Feeds filtered, regulated air to the pneumatic clamps, tool-change cylinders and spindle accessories on a CNC machining centre, with the 5 um element protecting fine pilot valves from particles and the regulator holding a steady set pressure.
Supplies regulated air to carton-sealers, case packers and wrapping-machine cylinders on a packaging conveyor line, where the manual-drain bowl is bled during scheduled changeovers and the psi gauge lets operators verify set pressure at a glance.
Installed as the air-preparation drop at a bench assembly station, filtering the shop supply down to 5 um and regulating it for air screwdrivers, pneumatic presses and gripper circuits fed from the same outlet.
Size 300 with a 1/2 in NPT port sits mid-range in the GFR line (sizes 200, 300, 400 and 600 step up in port and flow capacity). If your line needs finer air than the standard 40 um element, the 5 um element fitted here is the choice to make; if coarse protection is enough, the 40 um version of the same size is the simpler order. The manual drain fitted here needs someone to bleed the bowl on a routine; choose the automatic or differential-pressure drain variant for unattended duty. The square gauge is set to read psi (MPa and bar scales are alternatives), and the standard regulator covers 0.05-0.9 MPa (7-130 psi) with manual drain. PT is the standard thread; G (BSPP) and NPT are order options, and this unit is ordered in NPT.
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 flow for the GFR300 as curves rather than a single rated figure, so there is no one number we can honestly quote. Send us your line pressure, set pressure and the air demand of your equipment, and we will confirm sizing against the datasheet curves before you order.
The manual drain fitted here means an operator opens the bowl drain to release collected water on a routine - simple and reliable for machines that are attended daily. For equipment that runs unattended, order the same GFR300 size with an automatic or differential-pressure drain instead; the 5 um element and NPT1/2 port stay the same.
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.