The AirTAC GFR30015MJF3WTK AirTAC Filter Regulator NPT1/2 5um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/2" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR30015MJF3WTK is a size 300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has a 1/2 in NPT port, a fine 5 um filter element (code W), a manual drain for emptying the PC bowl, an embedded square gauge reading in bar, and a built-in check valve (code K) that holds downstream pressure if the upstream supply drops. No mounting bracket is fitted. 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. The GFR family is available in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and with options including automatic, manual or differential-pressure drains, 40 um or 5 um filter grades, MPa, psi or bar gauge scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so we confirm datasheet and sizing figures on request.
| Model | GFR30015MJF3WTK AirTAC Filter Regulator NPT1/2 5um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, bar scale |
| Reflux valve | Fitted (reverse flow permitted) |
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 0.05 - 0.9 MPa (7 - 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. |
|---|---|
| 15 | Port size PT1/2". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding clean, pressure-controlled air to tool-clamp cylinders and pneumatic actuators on a CNC machining centre, with the 5 um element protecting fine valve internals and the check valve holding the clamp circuit if shop supply dips.
Regulating air to gripper cylinders and stopper gates on a bottling or packaging conveyor, where the manual drain is emptied during scheduled line cleaning and the bar gauge gives operators a clear setpoint readout.
Supplying filtered, regulated air to banks of air cylinders at a manual assembly bench, keeping a stable working pressure for repeatable press and clamp operations while the 5 um grade guards downstream fittings and seals.
Size 300 with a 1/2 in NPT port suits lines running moderate compressed-air volumes; step up to size 400 or 600, or down to 200, according to the flow your circuit needs. The 5 um element (W) is the finer choice over the standard 40 um where downstream equipment needs cleaner air. The manual drain means an operator opens the bowl drain periodically; automatic or differential-pressure drains are available if you prefer unattended moisture removal. The square gauge here reads in bar; MPa and psi scales are also offered. PT is the standard thread, with G and NPT as catalogue options, and a mounting bracket can be ordered. Because flow is published as curves rather than a single rating, 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for this series as curves rather than a single rated figure, so we do not quote a number. Send us your line pressure, set pressure and expected air consumption, and we will confirm the sizing from the datasheet on request.
The M in the code specifies a manual drain: an operator opens the bowl drain to release collected water. If you prefer unattended operation, the same size 300 filter regulator is available with an automatic drain (code A) or a differential-pressure drain (blank), and the regulation range with a manual drain is 0.05-0.9 MPa (7-130 psi).
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.