The AirTAC GFR400C10LJC3T 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 GFR400C10LJC3T is an AirTAC GFR-series filter regulator: a 40 um filter and a pressure regulator combined in one body, so a single size-400 unit removes water and particulate from compressed air and holds the downstream pressure. This configuration is built around a 3/8 in NPT port, the low-pressure regulator type, a differential-pressure drain, a round pressure gauge with bar scale, and no mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -5 to 70 C (non-freezing), and the bowl on this size is polycarbonate.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and with choices of drain type, 40 um or 5 um (W) filtration, gauge type and scale, thread (PT standard; G and NPT to order) and bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and any datasheet figure for your application before ordering.
| Model | GFR400C10LJC3T 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) |
Feeding filtered, regulated low-pressure air to spray guns and air-assisted applicators in a paint finishing line, with the 40 um element catching water and pipe scale before they reach the finish.
Supplying conditioned air to the cylinders and air jets on a carton-forming and sealing conveyor, where one compact body handles both water and particulate removal and the pressure setting at the machine.
Regulating clamp and chuck actuator pressure on a CNC machining cell, with the fitted round bar-scale gauge giving the operator a direct reading at the setpoint.
Size and port set the air capacity: this unit is size 400 with a 3/8 in NPT port, and the family steps through sizes 200/300/400/600 with ports from 1/8 to 1 in so the unit can be matched to the line. Because flow is published as curves rather than a single rating, send us your flow and pressure requirements and we will confirm the right size from the datasheet before you order. Other decodable choices: drain type (differential-pressure as fitted here, or automatic / manual), filter grade (40 um standard; 5 um with code W), gauge (round or square, with MPa, psi or bar scale), thread (PT standard; G or NPT to order), bracket, and standard versus low-pressure regulator type. The adjustment range of the low-pressure type is not published in our data, so confirm your setpoint with us 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 series as curves rather than a single rated figure, so we do not quote a number here. Send us your line size, inlet pressure and required downstream flow, and we will confirm the sizing for this unit from the datasheet on request.
This unit is fitted with the standard 40 um element, which removes water and particulate from the compressed air before regulation. If the application needs finer filtration, the same GFR family is available with a 5 um element under the W code - ask us to quote the equivalent W model in this size and port.
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.