The AirTAC GFR400C15LC3TK 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 AirTAC GFR400C15LC3TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This unit is built on the GFR400 size with a 1/2 in NPT port, a standard 40 um filter element and a differential-pressure drain, which discharges collected condensate in response to a pressure differential rather than by manual operation. It carries the L low-pressure regulator type, a fitted external round gauge reading in bar, a built-in check valve (code K) that blocks reverse flow back toward the supply, and a mounting bracket. The polycarbonate bowl suits non-freezing compressed air from -5 to 70 C, with a maximum inlet pressure of 1.0 MPa (145 psi).
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in and options including a 5 um element (code W), automatic or manual drains, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow for the series is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR400C15LC3TK 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) |
Mounted ahead of the clamp cylinders on a CNC machining cell, this 1/2 in filter regulator delivers filtered, regulated low-pressure air to the clamps, while the built-in check valve blocks reverse flow back toward the supply.
On a carton-sealing line, the unit feeds sealing heads and pusher cylinders with air stripped of water and 40 um particulate, helping keep moisture out of the directional valves and actuators along the conveyor.
At a final-assembly bench, the low-pressure regulator sets a reduced, stable supply pressure for air tools and small actuators, with the round bar gauge giving operators a clear local pressure reading.
Choose the GFR400 size when your line runs 1/2 in ports and you want filtration and regulation combined in one body; the smaller 200/300 and larger 600 sizes step port size and flow capacity up or down. Drain choice matters: differential-pressure (this unit) discharges on a pressure differential, automatic (code A) drains condensate on its own, and manual (code M) needs a periodic twist of the drain screw. The standard element is 40 um; specify W for 5 um where finer filtration is needed. Gauge options are the embedded square gauge or an external round gauge in MPa, psi or bar scales - this unit carries a round gauge with a bar scale. Threads come as PT (the standard), G (BSPP) or NPT, and the mounting bracket is included on this unit.
Because AirTAC publishes flow only as curves and not as a single rated figure, we do not quote a flow number here. Send us your application's flow and pressure requirements and we will confirm sizing against the datasheet before you order. Note that this is the L low-pressure regulator type; its exact regulation range is not published, so confirm it with us as well.
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 rather than as a single rated figure, so we do not quote a flow number. Tell us your application's flow and pressure requirements and we will confirm sizing against the datasheet on request.
This unit carries the L low-pressure regulator type, and its exact regulation range is not published in the catalogue. Standard GFR units with differential-pressure or automatic drains adjust across 0.15-0.9 MPa (20-130 psi), but for this low-pressure variant please confirm the range with us before ordering.
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.