The AirTAC GFR400C10LJC3WT 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 GFR400C10LJC3WT is an AirTAC GFR-series filter regulator: a 5 um filter element and a pressure regulator combined in a single body, so one unit removes water and particulate from compressed air and holds a reduced downstream pressure. This size 400 configuration takes a 3/8 in NPT port and carries a differential-pressure drain, a metal bowl, a round gauge reading in bar, and the low-pressure regulator type. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). No mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and with choices of drain (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um with code W), gauge style and scale, PT, G or NPT thread, and bracket or no bracket. AirTAC publishes flow for this series as curves rather than a single rated figure, so ask us to confirm flow and datasheet figures for your application before ordering.
| Model | GFR400C10LJC3WT 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) |
Point-of-use conditioning for a bottling hall's pick-and-place and capper actuators: the 5 um element cleans the air after the main dryer and the regulator holds the reduced pressure the machine's circuit was built around, with the bar gauge giving operators a local reading.
Feeding short-stroke stopper and diverting cylinders on a packaging conveyor, where the low-pressure regulator type suits circuits that run at reduced settings and the differential-pressure drain keeps condensate away from the valves.
Supplying purge and actuation air on a laboratory test skid, where the round bar gauge provides a local pressure reference and the 5 um grade helps protect sensitive pneumatic instruments from particulate carryover.
Size and port are the first choice: 200, 300, 400 and 600 step up in port and flow capacity, so match the size to the air demand of the circuit - the 400 size here takes a 3/8 in port. Then set the options: drain type (differential-pressure as fitted here, or automatic or manual), filter grade (40 um standard, 5 um where finer filtration is needed - code W, as on this unit), gauge style and scale (this configuration has a round gauge reading in bar), thread (PT is the standard; G and NPT are ordered options - this unit is NPT), bracket or no bracket, and standard versus low-pressure regulator type. Flow for the GFR series is published as curves, not a single rating, so 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 series as curves rather than a single rated figure, so no single flow number is quoted here. Tell us your inlet pressure, set pressure and expected air demand, and we will confirm the flow and the full datasheet figures for this model on request.
The 40 um element is the GFR standard; the W code on this unit specifies the optional 5 um grade for finer particulate removal ahead of sensitive valves and cylinders. Both grades are available across the family, so you can order either to suit the circuit. If you are unsure which grade your application needs, ask us to review it with you before 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.