The AirTAC GFR400C10LJF2W 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.
GFR400C10LJF2W is an AirTAC GFR400-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the size 400 unit with PT3/8 (3/8 in) ports, a 5 um filter element (code W, against the 40 um standard), a differential-pressure drain that discharges collected condensate automatically as air flows through, the low-pressure regulator type, and a fitted embedded square gauge reading in psi. No reverse/check valve is fitted and no mounting bracket is included with this code.
It is a genuine AirTAC part. The GFR family runs from size 200 to 600 with ports from 1/8 in to 1 in, thread options PT (standard), G and NPT, drain types (differential-pressure, automatic, manual), 40 um standard or 5 um filtration, square or round gauges in MPa, psi or bar scales, and bracket options. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The bowl on this unit is metal. Flow is published as curves rather than a single rating, so ask us to confirm figures from the datasheet for your application.
| Model | GFR400C10LJF2W 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) |
Clean, low-pressure regulated air to pneumatic clamping circuits on a CNC fixture line. The 5 um element keeps water and particulate out of clamp cylinders and valves, the differential-pressure drain clears condensate during production, and the psi gauge lets setters verify clamp pressure at a glance.
Point-of-use air preparation ahead of spray guns in a paint booth. The 5 um filtration protects the gun and the finish from water and dirt, the low-pressure regulator holds a stable atomization setpoint, and the psi gauge matches US shop gauges.
Filtered, low-pressure regulated air for air-cushion tables and transfer sections on a bottling or canning line. The differential-pressure drain bleeds accumulated water automatically as the line runs, keeping the air film dry and consistent through the shift.
The real choices in this family are decodable from the code. Step size (200/300/400/600) and port (1/8 in to 1 in) against the flow your line needs - we confirm sizing from the published flow curves before you order. Drain: this unit uses the differential-pressure type, which discharges condensate automatically when flow passes; automatic and manual drains exist in the family. Filtration: 5 um here (code W) where the standard element is 40 um - choose 5 um to protect sensitive downstream components. Gauge: the fitted embedded square gauge reads psi; a round external gauge and MPa or bar scales are options. Thread: PT is standard on this unit; G and NPT are order options. No bracket is included (code J); brackets are available in the family.
Because this is the low-pressure (L) type, its exact adjustment range is not published in our source material - confirm it with us before ordering if your set pressure is critical. Send us your required flow and downstream demand and we will check the GFR400 flow curves against your application before you buy.
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 l/min or SCFM number here. Send us your application details and we will confirm the flow and the full datasheet for this exact model on request.
This model is the low-pressure (L) type of the GFR400 family, and its exact adjustment range is not published in the material we use, so we confirm it on request. For comparison, standard-type GFR400 units with differential-pressure drain adjust across 0.15-0.9 MPa (20-130 psi).
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.