The AirTAC GFR400C15LJF2WK 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 GFR400C15LJF2WK is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built for a 1/2 inch PT port, carries the fine 5 um filter element (code W) instead of the standard 40 um, drains condensate by differential pressure, and is the low-pressure type (code L) for circuits that must not see standard regulator settings. It ships with the embedded square gauge scaled in psi, a reverse/check valve (code K) fitted, and no mounting bracket (code J).
This is a genuine AirTAC part from the GFR series, 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 standard or low-pressure regulation. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR400C15LJF2WK 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) |
Fixture clamps that must close gently and hold at reduced pressure suit the low-pressure type: the 5 um element keeps spool valves clean while the regulator holds the clamp circuit at its set pressure, and the check valve holds the circuit if upstream supply dips.
Packaging machines run many small cylinders and air piloted valves that foul quickly on dirty air. A filter regulator at each machine section conditions the supply - fine 5 um filtration, regulated pressure, and a psi gauge the operators can read at a glance.
Instrument panels, sample handling skids and pilot-operated process valves need air that is clean, dry-ish and held at a modest, stable pressure. The low-pressure type regulator, fine element and check valve make this unit a tidy single-connection supply point for such skids.
Start with the port step: this unit is size 400 with a 1/2 inch PT port, so size up or down (200/300/600) only if your line's flow demand or piping changes - and have us check the flow curve against your consumption before you order, since AirTAC publishes flow as curves, not a single rated figure. Choose the drain to match attendance: differential-pressure (this unit, drains automatically as flow passes), automatic, or manual for supervised points. Pick the element by air quality need: 40 um standard for general plant air, 5 um (this unit) for finer protection of valves and actuators. This is the low-pressure type (L); its exact adjustment range is not published in the catalogue, so confirm it with us if your setpoint is critical. Gauge scale (MPa, psi or bar - this unit is psi), thread (PT standard, G or NPT to order), bracket inclusion and the reverse/check valve (fitted here) are all decodable from the code.
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, not as a single rated number, so we will not quote a figure that is not in the datasheet. Send us your line pressure, set pressure and air consumption, and we will confirm the flow and sizing from the datasheet on request before you order.
The L in the code marks the low-pressure regulator type, intended for circuits regulated well below standard settings; its exact adjustment range is not published in the catalogue, so confirm it with us if your setpoint matters. The W gives the 5 um element instead of the standard 40 um - choose it when downstream valves or actuators need finer filtration. This unit also has the square psi gauge, a reverse/check valve, differential-pressure drain and no bracket.
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.