The AirTAC GFR300C15MLJF1WT 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 GFR300C15MLJF1WT is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body, sized for 1/2 in NPT1/2 ports. This configuration carries a 5 um filter element, a manual drain, a metal bowl, the low-pressure regulator type, an embedded square gauge reading in MPa, no reverse/check valve and no mounting bracket. It runs on compressed air only, accepts up to 1.0 MPa (145 psi) inlet pressure, and operates from -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, a choice of 40 um standard or 5 um filtration, differential-pressure, automatic or manual drains, gauge and scale options, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm flow and other datasheet figures for your application before ordering.
| Model | GFR300C15MLJF1WT 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) |
Point-of-use conditioning for a palletizer's cylinder and gripper circuit: the 5 um element keeps water and particulate out of the directional valves while the regulator holds a steady low-pressure setting for the clamping sequence.
Supply filtered, regulated air to the clamp cylinders on a pneumatic workholding press; the manual drain suits a shift-start blowdown routine and the MPa gauge lets setters dial in the clamp pressure.
Condition the air feeding conveyor stopper and diverter actuators on a bottling line, where the low-pressure regulator type and 5 um filtration help protect the small control valves in the circuit.
Step up through sizes 200, 300, 400 and 600 and match the 1/2 in NPT port of this unit against your pipe size and the flow the line needs. Drain type matters: a manual drain needs operator attention, while automatic and differential-pressure drains discharge condensate on their own - this unit is manual. Filtration here is the finer 5 um grade (40 um is the standard element); choose it where downstream valves and cylinders need cleaner air. The embedded square gauge reads in MPa; psi and bar scales and an external round gauge are options. Thread is NPT on this unit; PT is the standard and G is also available to order. A mounting bracket is optional and not fitted here. 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.
Flow for the GFR300 is published as curves, not as a single rated figure, so we do not quote a number here. Send us your inlet pressure, required downstream pressure and expected air consumption, and we will confirm the correct size and flow figures from the AirTAC datasheet on request.
This configuration uses a manual drain: condensate collects in the metal bowl until an operator opens the drain, so it suits installations with a regular blowdown routine. If that is not practical, ask about the same series with an automatic or differential-pressure drain. The regulator is the low-pressure type; its exact adjustment range is not published, so confirm it with us before ordering.
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.