The AirTAC GFR400C15ALF1T AirTAC Filter Regulator NPT1/2 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 GFR400C15ALF1T is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration has a 1/2 in NPT port, an automatic drain that ejects collected condensate without operator attention, a 40 um standard filter element, the low-pressure regulator type, and an embedded square gauge scaled in MPa. A mounting bracket is included, the bowl is metal, maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, an optional 5 um element (code W), and gauge scales in MPa, psi or bar. Flow for this series is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application on request.
| Model | GFR400C15ALF1T AirTAC Filter Regulator NPT1/2 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 clean, regulated air to carton sealers, case packers and wrapping heads on a packaging line, where the automatic drain keeps condensate out of valves and cylinders between shifts.
Conditioning and regulating supply air for pneumatic clamps and swing cylinders on assembly fixtures, where the low-pressure regulator type holds a lower set pressure for delicate workpieces.
Supplying filtered, regulated air to diverters, stoppers and pusher cylinders along conveyor and sorting systems, with the included bracket simplifying mounting beside the line.
Size 400 with a 1/2 in NPT port suits circuits that need larger flow capacity; step up or down through sizes 200 to 600 as demand requires. Drain type is a real maintenance choice: this unit drains automatically, while manual draining needs operator attention and differential-pressure draining is the catalogue default. The 40 um element is standard; specify code W for 5 um filtration. Gauge scales can be ordered in MPa, psi or bar, and the thread is available as PT (the standard) or G as well as this NPT version. 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.
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.
Flow for the GFR series is published as curves, not as a single rated number, so we do not quote a l/min or SCFM figure on the product page. Send us your application details and we will confirm the correct sizing from the AirTAC datasheet on request before you order.
This GFR400 is the low-pressure regulator type; its exact adjustment range is not published in the catalogue, so we confirm it on request. It also carries an automatic drain, which expels collected condensate from the metal bowl by itself instead of waiting for a manual drain operation, and the embedded square gauge is scaled in MPa.
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.