The AirTAC GFR400C10LJC1WT AirTAC Filter Regulator NPT3/8 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 GFR400C10LJC1WT is an AirTAC GFR-series filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is the 400 size with a 3/8 in NPT port, 5 um filtration (the fine W grade), a metal bowl with differential-pressure drain, the low-pressure regulator type, and a fitted round gauge reading in MPa. It is rated for up to 1.0 MPa (145 psi) inlet pressure and -5 to 70 C (non-freezing), and is supplied without a mounting bracket.
It is a genuine AirTAC part from the GFR range, which spans sizes 200 to 600 with ports from 1/8 to 1 in and options including 40 um or 5 um filtration, manual, automatic or differential-pressure drains, square or round gauges with MPa, psi or bar scales, and G, NPT or PT threads. Flow for this series is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application on request.
| Model | GFR400C10LJC1WT AirTAC Filter Regulator NPT3/8 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 for the clamp cylinders on a CNC milling fixture, with the 5 um grade keeping water and grit out of the clamping circuit.
Low-pressure regulated air for paint spray guns in a wood or metal finishing booth, where fine 5 um filtration helps protect the quality of the finish.
Regulated air for the diverters, pushers and gripper cylinders on a packaging conveyor, with the round MPa gauge giving operators a local setpoint readout.
Size and port set the air capacity: the 400 size with its 3/8 in NPT port suits lines needing more air than the 200/300 sizes, but because flow is published as curves rather than a single rating, ask us to confirm sizing against your demand before ordering. The 5 um element (W) is the finer choice over the standard 40 um where downstream valves and cylinders need cleaner air. Drain here is differential-pressure, which clears the bowl as inlet pressure falls; automatic and manual drains are orderable alternatives. The fitted round gauge reads in MPa, with psi and bar scales available. Thread is NPT as ordered, with G (BSPP) and PT as catalogue options; brackets are optional and this unit is supplied without one.
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 a number here. Send us your line pressure and air demand and we will confirm the flow and full datasheet figures for this 400-size, 3/8 in NPT unit on request.
The L in the code marks the low-pressure regulator variant, intended for setpoints below the standard type; the exact adjustment range is not published in our data, so confirm it with us for your setpoint. The fitted round gauge reads in MPa, and psi or bar scales can be ordered as alternatives.
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.