The AirTAC GFR400C15LJC2WK AirTAC Filter Regulator PT1/2, 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 GFR400C15LJC2WK is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is built with a 1/2 inch PT1/2 port, a 5 um filter element for finer filtration than the 40 um standard, a differential-pressure drain that bleeds condensate automatically when the pressure differential rises, and a low-pressure type regulator for applications set below the standard range. It ships as coded with a round external psi gauge, a reverse/check valve fitted, and no mounting bracket, and the bowl is metal.
This is a genuine AirTAC part in the GFR family, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um filtration, gauge and thread options, and bracket or no-bracket builds. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures for your application on request.
| Model | GFR400C15LJC2WK AirTAC Filter Regulator PT1/2, 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) |
Feeding clamp and hold-down cylinders on an assembly-machine press, where the low-pressure type regulator holds a reduced set pressure for the clamping circuit while the 5 um element keeps fine debris out of the valve stack.
Conditioning house compressed air ahead of benchtop analytical and test instruments that need clean, moisture-reduced air at a low, stable setting, with the psi gauge giving a direct local readout at the bench.
Supplying the small cylinders and air actuators on a carton-forming and sealing machine, where the reverse/check valve holds the downstream circuit during supply dips and the differential-pressure drain keeps condensate off the machine floor.
Step through the decodable choices in order. First pick the size and port: 200, 300, 400 or 600, with ports from 1/8 to 1 inch, matched to the pipe and the flow your line needs. Then choose the drain: differential-pressure (this model, automatic on pressure differential), fully automatic, or manual for controlled periodic draining. Choose the filter grade: 40 um standard or 5 um (code W, as here) where finer particle removal matters. For units with a regulator, pick standard or low-pressure type, the gauge (embedded square as standard, external round optional) and its scale in MPa, psi or bar, and whether a reverse/check valve is fitted. Finally select the thread: PT is the standard, with G (BSPP) and NPT available as order options, and decide on bracket or no bracket.
One honest note before ordering: AirTAC publishes flow as curves, not as a single rated number, so send us your flow and pressure requirements and we will confirm the right size against the datasheet before you commit.
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 GFR400 series as curves rather than a single rated figure, so we do not quote one number. Tell us your line pressure, set pressure and required flow, and we will confirm the sizing against the datasheet on request before you order.
The W in the code specifies the 5 um filter element instead of the 40 um standard, for finer water and particulate removal, and the L specifies the low-pressure type regulator for circuits set below the standard range. The exact set-pressure range for the low-pressure type is not published on the sheet we transcribe from, so we confirm it with the datasheet on request.
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.