The AirTAC GFR300C15MLF2WTK AirTAC Filter Regulator NPT1/2 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 AirTAC GFR300C15MLF2WTK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built around 1/2 in NPT ports, a 5 um filter element (finer than the 40 um standard), a metal bowl with a manual drain, and a low-pressure regulator type. An embedded square gauge reading in psi is fitted, a reverse/check valve is included, and a mounting bracket comes with the unit. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part from the GFR300 series. Across the GFR range you can order sizes 200 to 600 with ports from 1/8 in to 1 in, differential-pressure, automatic or manual drains, 40 um or 5 um filter grades, gauge scales in MPa, psi or bar, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR300C15MLF2WTK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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) |
Filtered, low-pressure regulated air to clamp cylinders on machining fixtures, where the 5 um element protects directional valves and the square psi gauge lets setters verify clamp pressure at a glance.
Point-of-use treatment for carton-sealing and wrapping machines: collected water is drained from the metal bowl by hand during changeover, and the low-pressure regulator holds a gentle setting for delicate actuation.
Regulated air to looms, winders and web-handling cylinders that run below standard line pressure; the reverse/check valve is fitted in this configuration and the included bracket gives a solid mounting point.
Choose the size and port against the flow your line needs: sizes 200, 300, 400 and 600 step up in port and capacity, and this unit sits at 300 with 1/2 in NPT ports. Pick the drain to match your maintenance routine: manual (this unit) means someone opens the drain valve periodically, automatic drains on its own, and differential-pressure is the default. Filter grade is 5 um here versus the 40 um standard - choose 5 um where downstream equipment needs finer air. Gauge scale (MPa, psi or bar), thread (PT standard, G and NPT to order), bracket and reverse/check valve are all decodable options. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing before you order.
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 this series as curves, not as a single rated figure, so we do not quote a number here. Tell us your line pressure, downstream demand and port size, and we will confirm the flow from the datasheet and check the sizing against your application before you order.
The M in the code means the metal bowl has a manual drain: someone opens the drain valve periodically to clear collected water. If you would rather not rely on a routine, the same series can be ordered with an automatic drain (code A), and differential-pressure drain is the default. Filter grade is also a choice - 5 um as on this unit, or the 40 um standard.
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.