The AirTAC GFR30015MLJC2GK AirTAC Filter Regulator G1/2, 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 AirTAC GFR30015MLJC2GK is a size-300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a G1/2 (BSPP) port, a manual drain bowl in polycarbonate, the standard 40 um filter element, a low-pressure regulator type, a round gauge reading in psi, and a built-in reverse (check) valve. No mounting bracket is included with this code. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range 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 a choice of ports, threads (PT standard; G and NPT as order options), drain types (differential-pressure, automatic or manual), 40 um or 5 um filtration, gauge styles and scales, and standard or low-pressure regulation. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR30015MLJC2GK AirTAC Filter Regulator G1/2, Low-Pressure |
|---|---|
| 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 — round, psi 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. 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). |
| C | Gauge shape: Round. 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. |
| 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeds filtered, pressure-regulated air to clamp cylinders on a CNC fixture line, where the low-pressure regulator type holds a gentle, repeatable clamp force and the check valve holds the setting if upstream supply dips.
Mounted at the drop of a packaging line's air supply to strip water and grit before it reaches valves and actuators, with the psi round gauge giving operators a familiar local pressure readout.
Prepares air for conveyor blow-off nozzles and diverter actuators, using the 40 um element to protect small orifices and the manual-drain bowl for a station serviced on a fixed maintenance round.
Size 300 with a G1/2 port sits in the middle of the GFR range; step up to size 400/600 or down to size 200 according to the flow your line needs - we will check the published flow curves against your demand before you order. This unit is the low-pressure regulator type, chosen where the controlled circuit runs below standard shop-air settings; the exact adjustment range for the low-pressure type is not published in our sheet, so confirm it with us. The manual drain means an operator opens the bowl drain periodically rather than relying on an automatic or differential-pressure drain - pick automatic if the unit sits where nobody walks. The 40 um element is the standard grade; specify code W for 5 um where finer particulate removal matters. The round gauge here reads in psi; square embedded gauges and MPa or bar scales are the other catalogue options. Thread is G (BSPP); PT is the standard thread and NPT can be ordered. A reverse/check valve is fitted, and this code carries no mounting bracket - order the bracket variant if you panel-mount.
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 number, so we do not quote a figure here. Tell us your line's air demand and we will confirm the flow-curve figures from the datasheet for this exact model on request.
The M in the code selects a manual drain: an operator opens the bowl drain to expel collected water, instead of the automatic or differential-pressure drain options. C2 selects the external round gauge with a psi scale; an embedded square gauge with MPa or bar scale is the alternative. Both are catalogue configuration choices you can reorder differently.
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.