The AirTAC GFR400C10LJF3WT AirTAC Filter Regulator NPT3/8 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 GFR400C10LJF3WT is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has 3/8 in NPT ports, a 5 um filter element (the finer of the two published grades), a differential-pressure drain that bleeds condensate automatically as flow passes through, and a low-pressure regulator type for applications that run below standard line pressures. It comes with the embedded square gauge scaled in bar, no external bracket, and no reverse/check valve fitted.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of 40 um or 5 um filtration, differential-pressure, automatic or manual drains, PT, G or NPT threads, and gauge scale options. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR400C10LJF3WT AirTAC Filter Regulator NPT3/8 |
|---|---|
| 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) |
On a carton-sealing or case-packing line, clamp and hold cylinders often run at reduced pressure to avoid crushing the product. This filter regulator cleans the supply of water and debris and holds a stable low-pressure setting to the clamp circuit, with the bar-scaled square gauge giving the operator a clear local reading.
Bottle-rinse and label blow-off stations need clean, dry, gently regulated air so jets do not blast labels out of position. Fed from the plant ring main through this 3/8 in unit, the 5 um element stops particulate reaching the nozzles while the low-pressure regulator trims the supply to the setting the station was tuned for.
Air-divertor and air-bearing sections of sorting conveyors rely on a steady, low supply pressure to float product correctly. This unit filters moisture and fines out of the feed and regulates it down to the low setting the conveyor was commissioned at, with the differential-pressure drain shedding collected condensate during normal flow.
Start with the port: this unit is 3/8 in NPT, and the size 400 body is the larger step in the GFR range - match the port and body size to the flow your line needs, and step up or down within GFR400 (or the 200/300/600 sizes) if your demand differs. This unit carries the 5 um element (code W); if your application tolerates coarser air, the 40 um standard grade is the alternative. Drain is differential-pressure here; automatic (code A) and manual (code M) versions exist if you prefer a set-and-forget or a hand-drained bowl. The gauge is the embedded square type scaled in bar; MPa and psi scales and an external round gauge are options. Thread is NPT on this unit - PT is the catalogue standard and G (BSPP) is also orderable - and brackets can be added or omitted (this one ships without). Because flow is published as curves and not a single rating, send us your application details 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 the GFR series as curves rather than a single rated figure, so we do not quote one number. Tell us your line pressure, downstream setting and the equipment you are supplying, and we will confirm the flow curve and correct sizing from the datasheet on request before you order.
The W in the code selects the 5 um filter grade, the finer of the two published options (40 um is the standard grade), which suits downstream equipment sensitive to fine particulate. The drain is differential-pressure, the default type: it bleeds accumulated condensate automatically as air flows through, with no operator action. Automatic (A) and manual (M) drain versions are available if you prefer.
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.