The AirTAC GFR400C10ALJC2WGK AirTAC Filter Regulator G3/8, 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 GFR400C10ALJC2WGK is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration carries a G3/8 port, a 5 um filter element (code W, finer than the 40 um standard), an automatic drain that bleeds collected condensate without manual attention, and the low-pressure regulator type for circuits set well below standard line pressure. It is fitted with an external round gauge reading in psi, a reverse/check valve, and no mounting bracket. The polycarbonate bowl suits the -5 to 70 C (non-freezing) operating range, 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 port options from 1/8 to 1 inch, a choice of automatic, manual or differential-pressure drains, 40 um or 5 um filtration, and gauge, thread and bracket options. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR400C10ALJC2WGK AirTAC Filter Regulator G3/8, 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) |
On an assembly fixture where workpieces must be held at a deliberately low set pressure to avoid marking, the low-pressure regulator type lets the line be tuned down from a standard supply, while the 5 um element keeps debris out of the clamp cylinders.
Feeding air to carton-sealing and case-erector cylinders on a packaging conveyor, the unit filters water and particulate to 5 um, holds a steady regulated supply, and the automatic drain clears condensate through long unattended shifts.
Supplying bench-top pneumatic test equipment that needs clean, stable air at a modest set pressure, the 5 um element protects sensitive components and the round psi gauge gives a direct, familiar reading at the panel.
Start with the size and port: the 400 frame with a G3/8 connection sits mid-range in the GFR line, and the right step depends on the air demand of the circuit rather than a quoted rating. This unit pairs a 5 um element with an automatic drain, the usual choice where fine filtration and unattended condensate removal matter; a manual drain suits intermittently used points and the differential-pressure drain is the catalogue default. The low-pressure regulator type is intended for circuits set below standard line pressure - its exact adjustment range is not published, so confirm it with us. The round psi gauge is fitted here; embedded square gauges with MPa, psi or bar scales are the standard alternative. G thread is an order option alongside the PT standard, and NPT is also available; a mounting bracket can be ordered (this unit is supplied without one).
Because flow is published as curves and not a single rated number, we do not quote a flow figure here. Send us your application details and we will confirm sizing against the datasheet 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 GFR400 series as curves, not as a single rated figure, so we do not quote a flow number. Tell us your air demand and line conditions and we will confirm the sizing against the datasheet before you order.
The automatic drain (code A) discharges collected condensate from the bowl on its own, which suits continuously running equipment or installations that are not checked daily. A manual drain is the lighter-maintenance choice for intermittently used points, and differential-pressure drain is the catalogue default. This unit also carries the 5 um element (code W) instead of the 40 um standard, and the low-pressure regulator type - its exact adjustment range is not published, so confirm it with us.
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.