The AirTAC GFR30015MLC2WT 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 GFR30015MLC2WT is a 300-size filter regulator: water and particulate filtration plus downstream pressure regulation in a single body. This configuration is built with 1/2 in NPT ports, a 5 um filter element for finer air cleaning than the standard 40 um grade, a manual drain bowl in PC (polycarbonate), and the low-pressure regulator type for applications that run at reduced supply pressures. A round pressure gauge scaled in psi is fitted, and the mounting bracket is included. 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 available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, and with choices of thread (PT standard, G and NPT as order options), drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um optional), gauge style and scale, and standard or low-pressure regulation. Flow is published as curves rather than a single rating, so ask us to confirm the flow and datasheet figures for your application before ordering.
| Model | GFR30015MLC2WT 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 | 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 | 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. |
| (blank) | Mounting bracket included. |
| (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. |
| 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. |
| (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" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
On a CNC fixture line, the GFR30015MLC2WT cleans the shop air to 5 um and holds a reduced, stable supply pressure to the clamp cylinders, with the psi gauge giving the operator a direct reading at the fixture.
Fitted at the air inlet of a cartoning or sealing machine, this 300-size unit filters moisture and particles from the plant supply and regulates a lower working pressure for the sealing jaws and product-push cylinders.
On a bottling or parcel conveyor, the unit feeds the gate and stopper cylinders with filtered, regulated air at a gentle setting, protecting the actuators from dirt and over-pressure in continuous duty.
Step up or down the size ladder (200 / 300 / 400 / 600) to match the port size and the flow your line needs - this unit sits at 300 with 1/2 in NPT ports. Choose the drain to suit access: manual (as here) means an operator drains the bowl on a schedule, automatic drains continuously, and differential-pressure is the default. Pick 40 um for general air prep or 5 um (this unit) where finer filtration protects downstream components. Gauge style and scale are selectable - this unit carries a round gauge in psi - and thread comes as PT standard with G and NPT as order options; a bracket is included on this configuration.
Because flow is published as curves rather than a single rated figure, send us your application details and we will confirm sizing against the datasheet before you order. The exact adjustment range of the low-pressure regulator type is also confirmed 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 the GFR series as curves, not as a single rated number, so we will not quote a figure that is not in the datasheet. Send us your line pressure, port size and the equipment you are feeding, and we will confirm the flow from the datasheet curves for your application before you order.
The M in the code selects a manual drain: the PC bowl must be drained by an operator at intervals, which suits positions that are easy to reach and checked routinely. The W code selects the 5 um filter element instead of the 40 um standard, giving finer removal of water and particulate to protect sensitive downstream components. If the bowl sits where nobody can reach it regularly, ask us about the automatic or differential-pressure drain versions of the same unit.
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.