The AirTAC GFR400C15LJF2WG 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 GFR400C15LJF2WG is an AirTAC GFR400 filter regulator: a 5 um filter and a pressure regulator combined in one body, so a single G1/2 (1/2 in) connection delivers cleaned, regulated air to the machine. This configuration is the low-pressure regulator type, fitted with a differential-pressure drain, a 5 um filtering element (code W), an embedded square gauge reading in psi, no mounting bracket and no reverse/check valve. The bowl on this unit is metal, the 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. The GFR400 sits in the G-series filter-regulator range, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and can be ordered with the 40 um standard element, automatic, manual or differential-pressure drains, gauge scales in MPa, psi or bar, and PT, G or NPT threads. Flow figures for this series are published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR400C15LJF2WG 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) |
Filtered, regulated air to pneumatic clamps and vises on a machining centre, with the 5 um element helping protect seal surfaces and the psi gauge giving operators a readable setpoint at the cell.
Clean, regulated air for case-sealer cylinders and flap tuckers on a packaging conveyor, where the differential-pressure drain clears collected water while the line keeps running.
A filter regulator ahead of the spray guns in a finishing booth, taking water and particles down to 5 um and holding the low gun supply pressure the finish calls for.
The real choices in this series are the size and port step, the drain type, the filter grade, the gauge and its scale, the thread and the bracket. This unit is size 400 with a G1/2 port; step up or down a size (200/300/400/600) when your line's flow demand or piping calls for it. The drain here is differential-pressure; automatic (code A) or manual (code M) drains are available if you prefer hands-off or scheduled draining. The 5 um element (W) suits points of use that see finer contamination than the 40 um standard element handles. The square gauge reads psi; MPa and bar scales exist, and an external round gauge is optional. The thread is G (BSPP); PT and NPT are order options, and a mounting bracket can be added. Flow for this series is published as curves, not a single rating, so send us your flow and pressure requirements 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.
AirTAC publishes flow for this series as curves rather than a single rated figure, so we do not quote a number here. Send us your required flow and working pressure and we will confirm the sizing from the datasheet on request.
The W code on this model orders the 5 um grade, which captures finer particles and is chosen for sensitive points of use such as valves, cylinders and spray equipment. The 40 um element is the standard grade if your line does not need the finer filtration.
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.