The AirTAC GFR400C10ALJC1TK 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 AirTAC GFR400C10ALJC1TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 400 unit is ordered with a 3/8 in NPT port, the low-pressure regulator type, an automatic drain, a 40 um standard filter element and a round pressure gauge reading in MPa. A reverse/check valve is fitted and no mounting bracket is supplied. The polycarbonate bowl suits non-freezing compressed air from -5 to 70 C, with a maximum inlet pressure of 1.0 MPa (145 psi).
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, a choice of differential-pressure, automatic or manual drains, an optional 5 um element (code W), square or round gauges with MPa, psi or bar scales, and G, NPT or PT thread options. AirTAC publishes flow only as curves rather than a single rated figure, so we confirm flow and other datasheet figures for your application on request.
| Model | GFR400C10ALJC1TK 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) |
Machining centres and CNC fixtures that hold workpieces with low-pressure clamping cylinders get filtered air and a stable, reduced pressure from one compact unit at the cell drop.
Packaging and labelling machines running low-pressure air cylinders benefit from water and particle removal ahead of the valves, with the automatic drain clearing condensate without operator attention.
Bench-top test rigs that need clean air at a reduced, low setting use the round MPa gauge for a clear local reading, while the check valve holds the set pressure if the supply dips.
Choose the size by port and flow: size 400 with a 3/8 in port sits in the middle of the GFR range (sizes 200 to 600, ports 1/8 to 1 in), and the right step depends on the flow your line needs - ask us to check it against the published curves before ordering. This unit is the low-pressure regulator type, so its adjustment range differs from the standard type and is not published here; confirm the range with us before sizing the circuit. The drain is automatic on this code; differential-pressure and manual drains are the other decodable choices. The 40 um element is standard and a 5 um version (code W) can be ordered. The gauge fitted is round with an MPa scale; an embedded square gauge is the standard fitting and psi or bar scales are available. Thread is NPT here, with G (BSPP) and PT as order options, and a mounting bracket is optional - this code ships 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 GFR400 as curves rather than a single rated figure, so no rated flow number is quoted here. Send us your application details and we will confirm the flow and sizing from the datasheet before you order.
This unit is the low-pressure regulator type (code L), so its adjustment range differs from the standard GFR range and is not published in the material we hold - confirm the exact range with us. For reference, the standard GFR type is quoted at 0.15-0.9 MPa (20-130 psi) with automatic or differential-pressure drain, and every GFR takes up to 1.0 MPa (145 psi) inlet.
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.