The AirTAC GFR30015MJF3T 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 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 GFR30015MJF3T is a GFR300 filter regulator: one body removes water and particulate from compressed air and holds downstream pressure steady. This configuration has 1/2 in NPT ports, a manual-drain polycarbonate bowl, the standard 40 um filter element, an embedded square gauge scaled in bar, and no mounting bracket or reverse/check valve. Maximum inlet pressure is 1.0 MPa (145 psi); the regulator adjusts from 0.05 to 0.9 MPa (7-130 psi). Operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR series is made in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and can be ordered with automatic, manual or differential-pressure drains, 40 um or 5 um (W) filtration, square or round gauges scaled in MPa, psi or bar, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm datasheet figures for your application.
| Model | GFR30015MJF3T AirTAC Filter Regulator NPT1/2 |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 40 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 | 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 0.05 - 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. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding filtered, regulated air to pneumatic clamps, tool changers and chip-blowing nozzles on a machining centre, with the bar-scaled square gauge letting operators set and check clamp pressure at the cell.
Supplying clean, regulated air to carton-forming cylinders and sealing jaws on a packaging conveyor, where the manual drain is bled at shift start and the 40 um element protects the valve seals.
Regulating supply pressure to pneumatic ball-valve actuators on a bottling or dosing skid, where a stable setpoint keeps stroke timing repeatable and the gauge gives a visible reference at the panel.
Size the GFR by port and air demand: this unit is size 300 with 1/2 in NPT ports, and the series steps 200/300/400/600 from 1/8 to 1 in, so move up a size if your circuit needs more air. Drain type is a real choice: this configuration is manual drain, which you bleed by hand on a schedule; automatic and differential-pressure drains are available where unattended water removal is needed. Filtration here is the 40 um standard element; specify code W for the 5 um element where finer protection is required. The fitted square gauge reads in bar; MPa and psi scales and an external round gauge are options. Thread is NPT on this unit; PT is the standard and G (BSPP) is also orderable. No mounting bracket is fitted (J code). Flow is published as curves, not a single rating, so send us your flow and pressure requirements and we will confirm sizing against the datasheet 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 GFR flow as curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Send us your required flow and working pressure and we will confirm the sizing from the datasheet on request.
Manual drain (code M) means collected water is expelled by opening the drain valve by hand, so the bowl needs draining on a schedule. The same GFR300 body is available with automatic or differential-pressure drains if you prefer unattended water removal.
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.