The AirTAC GFR400C15LF1WT AirTAC Filter Regulator NPT1/2, 5 um 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 GFR400C15LF1WT is a size 400 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is built with a 1/2 in NPT port, the 5 um filter element (code W) for finer air cleaning than the standard 40 um grade, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and the embedded square gauge scaled in MPa so the set pressure is visible at a glance. It is the low-pressure type, intended for circuits that run below standard regulator settings, and it ships as a genuine AirTAC part with the mounting bracket included.
GFR400 is the largest of the mid-range GFR sizes, with a 1/2 in port suited to higher-demand drops on a compressed-air line. Across the GFR family you can order other sizes and ports, PT or G thread variants, 40 um or 5 um elements, manual, automatic or differential-pressure drains, gauge or no-gauge builds with MPa, psi or bar scales, and standard or low-pressure regulation. AirTAC publishes flow for this series as curves rather than a single rated figure, so ask us and we will confirm the datasheet and sizing figures for your application on request.
| Model | GFR400C15LF1WT AirTAC Filter Regulator NPT1/2, 5 um |
|---|---|
| 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) |
Feeds a clamping or holding fixture circuit that runs at reduced line pressure, filtering water and fine particulate from the shop air before it reaches the cylinders while the square MPa gauge lets the setter read and hold the set point.
Conditions the compressed air feeding a bench-top test rig or pilot rig: the 5 um element keeps fine debris out of sensitive instruments and valves, and the low-pressure type regulator suits rigs that operate well below standard shop-air settings.
Serves as the point-of-use filter regulator on a packaging or cartoning conveyor drop, cleaning condensate and particles from the 1/2 in supply line and regulating it down for the diverters, pushers and gripper cylinders downstream.
Choose the size and port step against the air demand of the circuit: this unit is size 400 with a 1/2 in NPT port, one step above the 3/8 in size 300 and below the larger 600 series. Because this is the low-pressure type, confirm the regulation window you need with us before ordering - the exact range for this version is not published in the catalogue. The 5 um element (code W) suits applications needing cleaner air than the standard 40 um grade; the differential-pressure drain is the default and needs no operator action, while manual and automatic drains are orderable alternatives. The square gauge is fitted here with an MPa scale (psi and bar scales are options), and an external round gauge can be ordered instead. Thread is NPT on this build; PT is the standard series thread and G (BSPP) is also a catalogue option. A mounting bracket is included. Flow for the G-series is published as curves, not a single rating, so ask us to confirm sizing against your application 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 flow for the G-series as curves rather than a single rated figure, so we do not quote a rated flow number for this unit. Ask us and we will confirm the datasheet and the flow-curve figures for your operating conditions on request, so you can size the 1/2 in port against your actual air demand before ordering.
The W in the code GFR400C15LF1WT selects the optional 5 um filter element, which removes finer particulate than the 40 um standard grade - useful where downstream valves or instruments need cleaner air. If your application does not need the finer grade, the same size is available with the standard 40 um element; both grades are catalogue options on the GFR400.
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.