The AirTAC GFR400C10LJC2WT AirTAC Filter Regulator 3/8 in NPT 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 GFR400C10LJC2WT is an AirTAC GFR400 filter regulator: it removes water and particulate from compressed air through a 5 um element and regulates downstream pressure in the same body. This configuration is the low-pressure regulator type, with a differential-pressure drain, a metal bowl, a round pressure gauge reading in psi, 3/8 in NPT ports and no mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the GFR400 size of the G-series filter-regulator line, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in. Filter grade, drain type, gauge style and scale, thread (PT standard, with G and NPT as order options) and bracket choice are all selectable across the series. Because flow is published as curves rather than a single rated figure, we confirm flow and other datasheet figures on request.
| Model | GFR400C10LJC2WT AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| 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 assembly fixtures where pneumatic clamps must hold workpieces at a reduced set pressure, this filter regulator cleans the supply air to 5 um and holds the regulated pressure to the clamp cylinders, with the psi gauge giving the operator a direct reading at the fixture.
Ahead of the directional valves and actuators on a carton-forming or wrapping line, this unit strips water and particulate from the plant air and regulates it to the pressure the machine's valve train was designed for, while the differential-pressure drain keeps condensate out of the bowl without manual draining.
In a paint or coating booth, the 5 um element filters the compressed air feeding spray equipment and the low-pressure regulator sets the supply pressure the gun or applicator needs, with the round psi gauge letting the operator verify the setting at a glance.
Size 400 with 3/8 in NPT ports sits in the middle of the G-series range; step up to size 600 or down to 300 or 200 if your demand and the flow curve call for it. The 5 um element (code W) is the finer choice over the 40 um standard - pick it where downstream valves, cylinders or instruments need cleaner air. The drain here is the differential-pressure type, the default option; automatic and manual drains are the alternatives. The fitted round gauge reads in psi; an embedded square gauge and MPa or bar scales are the other gauge options. PT is the standard thread and G or NPT are order options - this unit is specified in NPT. It comes without a bracket; brackets are optional. The regulator is the low-pressure type; ask us to confirm its adjustment range and to check the flow curve against your application before ordering, since flow is published as curves, not a single rating.
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 G-series flow as curves, not as a single rated figure, so we do not quote a number here. Send us your application's flow and pressure requirements and we will confirm from the GFR400 datasheet whether this size and its 3/8 in NPT ports suit your line before you order.
W is the filter-grade code: this unit carries the 5 um element instead of the 40 um standard. It is the right choice where downstream valves, cylinders or instruments need finer filtration; the 40 um grade remains available in the same size if your plant air is already clean.
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.