The AirTAC GFR300C15MLJNTK 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 GFR300C15MLJNTK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is built for a 1/2 in NPT port (PT is the standard thread; G and NPT are catalogue order options), drains by hand through its manual drain, carries the standard 40 um filter element, and is the low-pressure regulator type. A reverse/check valve is fitted, no gauge is supplied and no mounting bracket is included. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. This unit is fitted with a metal bowl.
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 is catalogued with automatic, manual or differential-pressure drains, an optional 5 um element (code W) in place of the standard 40 um, and gauge and thread options as the catalogue lists them. Because flow is published as curves rather than a single rated figure, we confirm flow and datasheet figures for your application on request.
| Model | GFR300C15MLJNTK 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, regulated air for the stopper and pusher cylinders that index bottles on a bottling conveyor; the manual drain suits a line that is bled down and serviced on a fixed schedule.
The low-pressure regulator type fits spray-gun and coating circuits that run at gentle settings; the 40 um element keeps water and pipe scale out of the gun before it reaches the tip.
Installed at the drop feeding a machine's valve manifold, the unit filters and regulates in one body, while the fitted reverse/check valve holds the circuit against backflow from downstream.
Size and port step up together across the GFR range (200/300/400/600, 1/8 to 1 in), so pick the step that matches the air your circuit needs - we check the flow curve against your demand before you order. On this model the decodable choices are already fixed: manual drain (you drain the bowl by hand on a routine; automatic and differential-pressure drains are available elsewhere in the family), the 40 um standard element (5 um, code W, is the finer option), low-pressure regulation, and a fitted reverse/check valve. No gauge is fitted; gauge options elsewhere in the family are the embedded square gauge or an optional external round gauge with MPa, psi or bar scales. Thread here is NPT; PT is the standard and G (BSPP) is also an order option, and the bracket option does not apply to this unit. The adjustment range of the low-pressure type is not published as a single figure - ask us to confirm it from the datasheet.
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 number, so we do not quote a figure here. Send us your working pressure and the air your circuit needs, and we will confirm the sizing from the datasheet on request.
A manual drain means an operator opens the bowl drain by hand as part of a routine. The same GFR300 family is also catalogued with automatic or differential-pressure drains if you would rather not rely on a manual task; drain type is a decode choice made when ordering, not a field retrofit.
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.