The AirTAC GFR30015MLJF2G AirTAC Filter Regulator G1/2, Manual Drain 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 GFR30015MLJF2G is a GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure at a set point in one compact body. This unit is built on the 300 size with G1/2 (BSPP) ports, a manual-drain polycarbonate bowl, a 40 um standard filter element, and the low-pressure regulator type for circuits that run below standard settings. The embedded square gauge with a psi scale is fitted; no mounting bracket and no reverse/check valve are included in this configuration.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options include automatic, manual or differential-pressure drains, a 5 um element (code W), gauge scales in MPa, psi or bar, and G or NPT thread in place of the PT standard. Maximum inlet pressure is 1.0 MPa (145 psi) and operating temperature is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm datasheet figures for your application.
| Model | GFR30015MLJF2G AirTAC Filter Regulator G1/2, Manual Drain |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (G (BSPP) 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. |
| G | G (BSPP) 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 clamping and press cylinders on an assembly line, where filtered air and a steady, lower set pressure protect the actuators and the workpiece.
Conditioning air for diverters, pushers and sealing cylinders on a packaging conveyor, with the manual drain emptied during scheduled line stops.
Supplying bench-top pneumatic test rigs that run at reduced pressure, where the low-pressure regulator type and psi gauge suit instrument-scale settings.
Start with the size and port step against the air your circuit needs: this 300-size unit carries G1/2 ports, and larger sizes move more flow. Drain type is a real choice - manual (this unit: open the drain when the bowl collects water), automatic, or differential-pressure - and the element is 40 um standard or 5 um (code W) where finer filtration is needed. The square gauge is fitted here with a psi scale; MPa and bar scales are available, and an external round gauge is optional. Thread is G (BSPP) on this unit; PT is the AirTAC standard and NPT is an order option. Brackets are optional and not fitted here. Flow is published as curves, not a single rated figure, so confirm sizing with us against your application before ordering.
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 number here. Send us your application details and we will confirm the datasheet flow curve and help you size the unit before you order.
This unit has a manual drain: someone opens the drain at the bowl to release collected water. Choose manual where the machine is attended and drained on a schedule; choose automatic or differential-pressure drain where the unit runs unattended. The bowl on this 300 size is polycarbonate.
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.