The AirTAC GFR30015MJF1WTK AirTAC Filter Regulator NPT1/2 5 um 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 GFR series combines water and particulate filtration with pressure regulation in a single body, so one size-300 unit cleans the air and sets a stable downstream pressure on a 1/2 in NPT port. This configuration carries the fine 5 um filter element (code W), a manual drain you operate by hand to empty the bowl, an embedded square pressure gauge scaled in MPa, and a built-in reverse/check valve that holds the downstream setting if upstream pressure is lost. No mounting bracket is included with this code. Maximum inlet pressure is 1.0 MPa (145 psi), the regulator adjusts from 0.05 to 0.9 MPa (7-130 psi) on this manual-drain version, and the working temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl suits sizes 200/300/400; only size 600 uses an aluminium alloy bowl.
This is a genuine AirTAC part from the G-series air-treatment line, which spans sizes 200, 300, 400 and 600 with a choice of PT, G (BSPP) or NPT threads, differential-pressure, automatic or manual drains, 40 um or 5 um filter grades, and gauge scale options. Flow for this series is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet and flow figures for your application on request.
| Model | GFR30015MJF1WTK AirTAC Filter Regulator NPT1/2 5 um |
|---|---|
| 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, MPa 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. |
| 1 | Gauge scale: MPa. 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) |
Feeds clean, regulated air to the tool-change clamps and pneumatic actuators on a machining centre, with the 5 um element protecting tight-tolerance valves from fine particulate.
Prepares the air feeding conveyor diverters, baggers and carton-sealing cylinders, holding a steady regulated pressure so cylinder stroke timing stays repeatable through the shift.
Serves a bench-mounted assembly cell where grippers and press cylinders need filtered air at a set pressure, with the manual drain emptied during scheduled line cleaning.
Size and port are the first choice: step up through 200, 300, 400 and 600 as your port size and air demand grow - this unit is size 300 on a 1/2 in NPT port. Drain type is a real decision: manual drain suits positions you can reach for routine servicing, while automatic or differential-pressure drains suit inaccessible or unattended installations. Filter grade is 40 um as standard; the 5 um element fitted here is the finer option for sensitive downstream equipment. Gauge scale can be MPa, psi or bar, and the square gauge is embedded as standard with an external round gauge available. Thread is PT as the catalogue standard, with G (BSPP) and NPT as order options; brackets are optional. 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 the GFR series as curves, not as a single rated figure, so we do not quote a number here. Tell us your port size, upstream pressure and target downstream pressure, and we will confirm the flow figures from the datasheet for your application on request.
The M in the code specifies a manual drain: condensate collects in the polycarbonate bowl and is released by operating the drain by hand. It is the right choice where the unit is accessible as part of a routine maintenance walk-round; for inaccessible or unattended positions, choose an automatic or differential-pressure drain code instead. Note that the manual-drain version also gives the wider 0.05-0.9 MPa (7-130 psi) regulation range.
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.