The AirTAC GFR30015MJF2 AirTAC Filter Regulator PT1/2 Square Gauge 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 GFR30015MJF2 is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This configuration is sized with PT1/2 (1/2 in) ports and a manual drain, so condensate collected in the bowl is released by hand as part of routine maintenance rather than automatically. The 40 um standard filter element handles general-purpose air preparation, and the fitted embedded square gauge reads in psi so operators can set and monitor the regulated pressure at a glance.
This is a genuine AirTAC part from the GFR300 series, which is offered in the wider G-series size range (200/300/400/600) with choices of port size, thread type (PT standard, with G and NPT available as order options), drain type, filter grade and gauge scale. Rated flow figures for this series are published as curves rather than a single number, so we confirm the datasheet and sizing figures on request.
| Model | GFR30015MJF2 AirTAC Filter Regulator PT1/2 Square Gauge |
|---|---|
| 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 | 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, 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. 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. |
| 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) |
Fitted at a 1/2 in air drop serving a production hall, it cleans water and debris from the compressed air supply and holds a steady regulated pressure for the tools and actuators fed from that drop, with the psi square gauge giving operators a direct reading at the point of use.
On packaging machines and conveyor systems with pneumatic cylinders and diverters, the unit filters the supply and keeps actuator pressure consistent between shifts, while the manual drain suits lines where maintenance staff walk the equipment on a fixed schedule.
For machine builders wiring a 1/2 in pneumatic supply into a new frame, the combined filter-regulator body saves panel space versus separate components, and the PT thread plus selectable gauge scale lets the same design be documented for different market standards.
Choose the GFR300 size and PT1/2 port to match your line's pipe diameter and air demand - larger sizes carry larger ports and higher flow capacity. Where a bowl is fitted, pick the drain type: manual (as here) for lines with supervised maintenance rounds, automatic for unattended drain-off, or the differential-pressure default. Filter grade is 40 um standard or 5 um (code W) where finer particulate removal is needed; the gauge can be square (as fitted here, psi scale) or an optional external round gauge with MPa, psi or bar scales, and thread can be PT, G or NPT to order.
Because flow for this series is published as curves and not a single rated figure, ask us to confirm sizing against your application's air demand before ordering - we will supply the datasheet figures on request.
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 flow for this series as curves rather than a single rated figure, so we do not quote one number. Tell us your application's air demand and we will confirm the sizing against the datasheet curves on request before you order.
The M in the code specifies a manual drain: condensate that collects in the polycarbonate bowl is released by operating the drain by hand during maintenance rounds. If your line runs unattended, ask us about the automatic-drain or differential-pressure-drain variants of the same GFR300 size.
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.