The AirTAC GFR30015MLJF2 AirTAC Filter Regulator PT1/2 Low-Pressure 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 GFR30015MLJF2 is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration has a PT1/2 (1/2 in) port with PT thread, the standard 40 um filter element, and a manual drain on the PC (polycarbonate) bowl that you open during routine checks. It is the low-pressure type (code L) - the exact adjustment range for this type is confirmed on request - and the fitted square gauge reads in psi. Max inlet pressure is 1.0 MPa (145 psi); operating temperature is -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 manual, automatic or differential-pressure drain, 40 um or 5 um (W) filtration, gauge scale options, and PT, G or NPT threads. Rated flow is published as curves rather than a single figure, so ask us to confirm sizing and any datasheet figure against your application before ordering.
| Model | GFR30015MLJF2 AirTAC Filter Regulator PT1/2 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Low-pressure 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, psi 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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)). |
| L | Low-pressure 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. |
| 2 | Gauge scale: psi. 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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Filtered, regulated air supplied to the cylinder-driven flap-folders and tape heads on a carton-closing line. The manual drain lets maintenance staff empty the PC bowl during scheduled rounds, and the psi gauge gives operators a direct setpoint readout.
Conditioned air for a laboratory or QC test rig that runs at reduced setpoints. The low-pressure type regulator and 40 um element protect sensitive instruments and gauges downstream, with the PT1/2 port matching the bench manifold.
Air preparation for cylinder-actuated pusher gates on a parcel sorting conveyor. Water and particulate are stripped out before the directional valves, and pressure is set once at the square gauge for consistent gate stroke timing.
Size and port step up together across GFR200, GFR300, GFR400 and GFR600, so pick the size whose published flow curve covers your demand at your working pressure - we will confirm the curve on request. Drain is a real choice: manual (this unit) means you empty the bowl during maintenance rounds, while automatic and differential-pressure drains handle condensate continuously. Filtration is 40 um standard; specify code W for 5 um where finer protection is needed. The square gauge here reads in psi; MPa and bar scales are available. Thread is PT as standard, with G (BSPP) and NPT as order options, and this J-coded unit comes without a mounting bracket.
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 G-series flow as curves, not a single rated figure, so we do not quote a number here. Tell us your working pressure and air demand and we will confirm the flow curve and sizing from the datasheet on request.
The M code sets a manual drain: condensate collected in the PC bowl is emptied by hand during routine checks. The GFR300 series is also available with automatic or differential-pressure drains - ask us for the alternative code when 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.