The AirTAC GFR400C10LJC2TK 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 GFR400C10LJC2TK is a size 400 G-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the low-pressure regulator type with a 3/8 in NPT port, 40 um standard filtration, a differential-pressure drain on the bowl, a round pressure gauge reading in psi, a built-in reverse/check valve, and no mounting bracket. The low-pressure type is chosen when the working circuit runs below the range of a standard regulator; the exact set range for this type is not published in the catalogue and we confirm it on request.
This is a genuine AirTAC part. The GFR family is available in 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, 40 um or 5 um (W) filtration, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR400C10LJC2TK 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) |
Fixture clamps and swing cylinders on an assembly cell that must hold at a reduced regulated pressure rather than full line pressure get filtration and low-pressure regulation from one body, with the check valve holding the set circuit if upstream supply dips.
Cylinder-actuated diverters, pushers and gate cylinders on a packaging conveyor line take filtered, regulated air at the 3/8 in take-off point, with the differential-pressure drain clearing condensate from compressed-air moisture without daily manual draining.
Air-assisted workholding, low-pressure clamping plates and air-bearing tables on a machining cell need clean air regulated to a low setting; the 40 um element protects the valve stack and the round psi gauge gives the operator a direct read in imperial units.
Start with the port step: this unit is size 400 with a 3/8 in NPT port; step up to size 600 or down to 300/200 depending on the flow your line needs, and we will check the flow curves against your demand. Drain choice matters: the differential-pressure drain fitted here needs no operator attention but relies on a pressure differential to spit condensate; specify automatic (A) for continuous unattended drainage or manual (M) where you want controlled draining. Filtration is 40 um standard; choose the W code for 5 um where finer protection is required. Gauge options are the embedded square gauge or an external round gauge in MPa, psi or bar scales - this unit carries the round psi gauge. Thread is NPT here; PT is the standard catalogue thread and G (BSPP) is also available. Brackets are optional (J code means none supplied). Because flow is published as curves, not a single rating, 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 characteristic curves, not as a single rated number, so we do not quote a l/min, m3/h or SCFM figure. Tell us your operating pressure and air demand and we will confirm the flow from the datasheet curves for this exact model before you order.
K means a reverse/check valve is fitted, so air will not back-flow through the unit if the upstream supply is lost - useful on circuits that must hold their set pressure. C2 means the external round gauge reading in psi is fitted instead of the standard embedded square gauge; square gauges and MPa or bar scales are available as alternative codes.
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.