The AirTAC GFR400C10LJF1WT AirTAC Filter Regulator NPT 3/8 in 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 GFR400C10LJF1WT is an AirTAC GFR400 filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single body. This size 400 unit has NPT 3/8 in ports, a 5 um filter element (the W grade; 40 um is the standard element), a differential-pressure drain, and the low-pressure regulator type (code L) for circuits specified with a low-pressure regulator. An embedded square gauge scaled in MPa is fitted, no mounting bracket is included, and no reverse/check valve is fitted. Maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -5 to 70 C (non-freezing), and the bowl is metal.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600, with PT as the standard thread and G (BSPP) and NPT as catalogue order options, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, and gauge scales in MPa, psi or bar. AirTAC publishes flow for this family as curves rather than a single rated figure, so ask us to confirm flow and datasheet figures for your application before ordering.
| Model | GFR400C10LJF1WT AirTAC Filter Regulator NPT 3/8 in |
|---|---|
| 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 clamp cylinders on a machining or assembly fixture, with the 5 um element helping keep clamping valves and downstream components clear of particulate and condensed water.
A filter regulator feeding positioners and pilot solenoids on a valve-actuation panel, where clean air and a regulated supply at the set point keep small control components doing their job.
Regulated air to diverter and stopper cylinders along a packaging conveyor, with the differential-pressure drain and the MPa square gauge letting operators check supply condition at the drop point.
Size and port are the first decision: GFR units step through sizes 200, 300, 400 and 600, each covering its own port range up to 1 in, so match the size to the air demand of your line - we can check the published curves against your requirement. This unit carries the 5 um element; the 40 um standard element suits general shop air, while 5 um gives finer particulate removal ahead of valves, cylinders and instruments. Drain choices are differential-pressure (as fitted here), automatic or manual. Gauge options are the embedded square gauge with MPa, psi or bar scales, or an external round gauge. Thread is NPT on this unit; PT is the standard and G (BSPP) is available to order. Brackets are optional. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering.
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 family as curves, not as a single rated number, so we do not quote a rated flow, Cv or SCFM for this unit. Send us your line pressure, set pressure and air demand and we will confirm the sizing from the datasheet on request.
This unit carries the W code, which is the 5 um element; 40 um is the standard grade for general shop air. Choose 5 um where downstream valves, cylinders or instruments need finer particulate removal. Both grades are catalogue options across the GFR family - tell us which you need when ordering.
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.