The AirTAC GFR400C15ALC2WG 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 See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR400C15ALC2WG is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single 400-size body with a G1/2 (BSPP) port. This configuration carries the W grade 5 um filter element for finer filtration than the standard 40 um element, an automatic drain that ejects collected condensate without manual attention, and the low-pressure regulator type for applications that operate below standard regulated pressures. It is fitted with an external round gauge reading in psi, and the maximum working (inlet) pressure is 1.0 MPa (145 psi). Operating 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 drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um optional), gauge type and scale, thread (PT standard; G and NPT as order options), and bracket. Flow is published as curves rather than a single rated figure, so we confirm flow and datasheet figures on request before you order.
| Model | GFR400C15ALC2WG AirTAC Filter Regulator G1/2 Low-Pressure |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard 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 0.15 - 0.9 MPa (20 - 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.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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 | GFR400 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Feeding filtered, regulated air to packaging machinery that runs at reduced working pressures, where the low-pressure regulator type, 5 um element and automatic drain keep the supply clean and the bowl clear without daily attention.
Conditioning shop air for lab benches and test rigs that need finer-than-standard 5 um filtration and a stable, lower regulated pressure, with the psi round gauge giving a direct local pressure readout.
Mounting at the inlet of a pneumatic control panel on a 1/2 inch G-threaded air main, combining water and particulate removal with low-pressure regulation in one body and the included bracket fixing the unit to the panel frame.
Size and port: the 400 size steps up in port and flow capacity from the 300 size; here it is ordered with the 15 port code, giving a 1/2 inch G (BSPP) connection. Match the size step to the flow your line needs, and confirm the exact figure with us, since GFR flow is published as curves rather than a single rating. Drain: the automatic drain (code A) suits unmanned or hard-to-reach installations; manual and differential-pressure drains are available on other configurations. Filtration: the W code selects the 5 um element where downstream equipment needs finer air than the standard 40 um element provides. Gauge: this unit carries the external round gauge with the psi scale (code 2); MPa and bar scales and the embedded square gauge are the other catalogue choices. Thread: PT is the standard thread, with G and NPT as order options - this unit is ordered with G. A mounting bracket is included with this configuration. The L code makes this the low-pressure regulator type; its exact regulation range is not published in the material we hold, so ask us to confirm it against your set pressure 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, not as a single rated figure, so we do not quote a flow number for this unit. Send us your line pressure, set pressure and expected air demand, and we will confirm the sizing against the datasheet curves on request before you order.
The L code selects the low-pressure regulator variant of the GFR400, intended for applications set below the standard type's range. The exact regulation range for this low-pressure configuration is not published in the material we hold, so please confirm it with us against your set pressure. The maximum working (inlet) pressure remains 1.0 MPa (145 psi), and the unit operates from -5 to 70 C, non-freezing.
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.