The AirTAC GFR400C10LJC1TK 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 AirTAC GFR400C10LJC1TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 400 configuration carries a 3/8 in NPT port, standard 40 um filtration, and a differential-pressure drain that bleeds condensate automatically whenever the pressure drop across the element is high enough, so no manual draining routine is needed. The regulator is the low-pressure type, and the code specifies a round pressure gauge with MPa scale fitted, a reverse (check) valve, and no mounting bracket.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, an optional 5 um filter grade, gauge scale options, and G (BSPP) or NPT thread variants to order. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR400C10LJC1TK 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) |
Supplies filtered, low-pressure regulated air to clamp cylinders and fixture actuators on machining fixtures, where the check valve helps hold the circuit and the 40 um element keeps spool valves clean.
Feeds filtered, regulated air to the cylinders and air jets on packaging and cartoning lines, with the differential-pressure drain handling condensate through shift-length running without a daily drain routine.
Conditions the air feeding low-pressure spray and coating setups, removing water and particulate ahead of the gun while the low-pressure regulator holds a gentle, stable supply pressure.
Start with the port step: this unit is size 400 with a 3/8 in NPT port; if your line needs more or less flow capacity, step up or down through the 200/300/400/600 sizes, which scale both port and body. The differential-pressure drain on this configuration suits lines that run often enough for pressure swings to eject condensate; choose automatic drain for continuous unattended duty or manual drain where you want full control. Filtration is the standard 40 um grade - select the W code for 5 um where downstream components need finer protection. The gauge here is round with MPa scale; psi or bar scales and the embedded square gauge are alternatives. Thread is NPT on this code; PT is the standard and G (BSPP) is an order option. No mounting bracket is included with the J code.
Note that this is the low-pressure regulator type, so confirm the control range suits your setpoint before ordering. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing against the datasheet.
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, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow and full datasheet figures for this 3/8 in NPT, size 400 filter regulator on request.
The code C1 specifies an external round pressure gauge with MPa scale fitted (the embedded square gauge is the standard alternative, with psi or bar scales available), K specifies a reverse/check valve, and J specifies no mounting bracket. All of these are decodable order options on the GFR series, so pick the combination that matches your panel or machine layout.
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.