The AirTAC GFR400C10LJF2WG AirTAC Low-Pressure Filter Regulator G3/8 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 GFR400C10LJF2WG is an AirTAC GFR400 filter regulator: it removes water and particulate from compressed air and holds downstream pressure at a set point, in a single body. This configuration is built around a G3/8 (BSPP) port on the 400 size, a 5 um filtering element (the finer of the two catalogue grades), a differential-pressure drain, and an embedded square gauge reading in psi. It is the low-pressure regulator type, supplied without a mounting bracket, and no reverse/check valve is fitted. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family covers four sizes (200, 300, 400 and 600) with ports from 1/8 to 1 inch, a choice of 40 um or 5 um filtration, differential-pressure, automatic or manual drains, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. The bowl on this 400-size unit is polycarbonate. AirTAC publishes flow for this family as curves rather than a single rating, so ask us to confirm flow and datasheet figures against your application.
| Model | GFR400C10LJF2WG AirTAC Low-Pressure Filter Regulator G3/8 |
|---|---|
| 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) |
On a workshop press fed from a shop air main, this unit strips water and swarf from the supply and lets an operator set a lower, stable working pressure for the cylinder - the low-pressure type and 5 um element suit sensitive clamping and forming strokes.
At the drop point feeding paint spray guns, the 5 um element catches fine particulate before the gun while the regulator holds the atomising pressure the painter sets - the square psi gauge gives a direct read at the booth.
On a carton-sealing or case-packing line, this unit conditions the air feeding sealing cylinders and vacuum generators, keeping moisture out of valves and holding a consistent set pressure so cycle behaviour stays repeatable across the shift.
The real choices on this family: step between sizes 200, 300, 400 and 600 to match the port and the flow your line needs - the 400 size carries the 3/8 port here, threaded G (BSPP); PT is the standard thread and G or NPT are order options. Choose the 5 um element (code W, fitted here) when downstream equipment needs finer filtration than the 40 um standard. Drain options are differential-pressure (fitted here), automatic or manual. The embedded square gauge is standard (psi on this unit); an external round gauge is optional, with MPa, psi or bar scales. A bracket can be added if panel or wall mounting is needed. One honest note on sizing: AirTAC publishes flow for this family as curves, not a single rated figure, so send us your flow and pressure requirements and we will confirm the right size before you order.
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 family as curves rather than a single rated number, so we do not quote a rated flow figure for this unit. Send us your required flow and working pressure and we will confirm sizing from the datasheet before you order.
The L marks the low-pressure regulator type. Its adjustment range differs from the standard type and the exact figures are not published on the catalogue sheet, so we confirm the set range from the datasheet on request. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C.
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.