The AirTAC GFR400C10LJC2W AirTAC Filter Regulator PT3/8 5 um 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 GFR400C10LJC2W is a size 400 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration carries a 3/8 in PT port, a 5 um filter element (the finer of the two catalogue grades), a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and the low-pressure regulator type for duties that call for a lower set-point window than the standard version. An external round gauge scaled in psi is fitted so the downstream pressure can be read and adjusted directly, and no mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in up to 1 in, and options that include manual or automatic drains, a 40 um standard element, square or round gauges scaled in MPa, psi or bar, a reverse/check valve, and G (BSPP) or NPT threads in place of the PT standard. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR400C10LJC2W AirTAC Filter Regulator PT3/8 5 um |
|---|---|
| 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) |
Filter and hold a steady, low supply pressure ahead of spray guns on a coating line, with the 5 um element helping keep water and fine particulate out of the finish and the fitted psi gauge making set-point checks quick at the booth.
Feed the pneumatic cylinders that drive diverters, pushers and clamp gates on a packaging conveyor, filtering the shop air and regulating it to the pressure the machine builder specified, with condensate handled by the differential-pressure drain.
Condition the air feeding clamps and tool-change actuators on a machining centre, combining filtration and regulation in one body to save panel space, with the round psi gauge letting operators verify clamp pressure at a glance.
Start with the port step: size 400 with a 3/8 in PT port sits in the middle of the GFR range, so step up to size 600 if your line may grow, or down to 200/300 for compact points of use. Because flow is published as curves rather than a single rating, send us your required flow and we will confirm the correct size against the datasheet before you order. This code already fixes several choices: the 5 um element (choose 40 um if your air quality needs are basic), the differential-pressure drain (choose automatic for unattended duty or manual where you want positive control), the low-pressure regulator type, and the round psi gauge. If you need the embedded square gauge, an MPa or bar scale, G or NPT threads, a reverse/check valve, or a mounting bracket, those are separate order codes - tell us and we will identify the right variant.
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. Tell us your required flow and operating pressure and we will confirm the sizing against the datasheet on request before you order.
The code suffix W selects the 5 um element, the finer of the two catalogue grades (40 um is standard), which suits points of use that are sensitive to fine particulate. The L suffix selects the low-pressure regulator type, intended where the set-point sits lower than the standard version covers; the exact adjustment range for the low-pressure type is not published in the sheet we work from, so we will confirm it on request.
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.