The AirTAC GFR40015MLC2K 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 GFR40015MLC2K is an AirTAC GFR400 filter regulator that combines water and particulate filtration with pressure regulation in a single body, sized for a 1/2 inch PT port. This configuration is the low-pressure regulator type with a manual drain bowl, a 40 um standard filter element, a round pressure gauge reading in psi, and a reverse (check) valve fitted. 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 series is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drains, a 40 um standard or 5 um (W) filter element, gauge styles and scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so we confirm datasheet figures on request.
| Model | GFR40015MLC2K AirTAC Filter Regulator PT1/2 Low-Pressure |
|---|---|
| Series | GFR400 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 — 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.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 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. |
| (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. |
| 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 | GFR400 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Point-of-use clean, regulated air for carton sealers, case packers and wrapping machines on a 1/2 inch drop, with the check valve holding downstream pressure if the upstream supply dips.
Filtered, regulated air for conveyor stopper cylinders, diverters and gate actuators, where the low-pressure regulator type matches circuits running at reduced set pressures.
A single-body filter regulator in a machine's pneumatic panel, feeding valves and cylinders from a 1/2 inch main, with the psi gauge giving operators a local set-pressure readout.
Size 400 with a 1/2 inch PT port suits lines where the required flow sits above the 300 size step; step up or down by port and flow demand, which we confirm against the published curves before you order. This unit is the low-pressure regulator type, so its adjustment range differs from the standard type and the exact range is not published - ask us to confirm it for your set pressure. The manual drain needs periodic bleeding by hand, unlike the automatic or differential-pressure options. The 40 um element is the standard grade; specify W for 5 um where finer filtration is needed. The round gauge here reads in psi; square embedded gauges and MPa or bar scales are alternatives. PT is the standard thread, with G (BSPP) and NPT as order options, and the bracket is included.
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 figure, so we do not quote a number here. Tell us your inlet pressure, set pressure and expected air demand, and we will confirm the sizing from the datasheet curves before you order.
The M in the code selects a manual drain: condensate collects in the PC bowl and is bled off by hand, 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 scales is available on other variants in the series.
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.