The AirTAC GFR400C10ALJF2WGK 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 GFR400C10ALJF2WGK is a filter regulator: it removes water and particulate from compressed air and reduces pressure to the working level in a single body. This configuration is built on the 400 size with a G3/8 (BSPP) port, a 5 um filter element (the finer of the two published grades), an automatic drain that ejects collected condensate without manual attention, a low-pressure regulator, an embedded square gauge reading in psi, and a built-in reverse/check valve. No mounting bracket is included on this code, and the bowl is metal.
This is a genuine AirTAC part from the GFR series, which spans the 200, 300, 400 and 600 sizes with ports from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um elements, gauge scales in MPa, psi or bar, and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR400C10ALJF2WGK 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) |
Filtering and regulating the compressed air that feeds cylinder-actuated filler and capping heads on a beverage bottling line, with the automatic drain clearing condensate between shifts so the bowls do not need daily attention.
Supplying cleaned, reduced-pressure air to the pneumatic clamp and hold-down cylinders on a CNC machining cell, where the 5 um element protects tight-tolerance valves from particulate carried in the shop air main.
Conditioning the compressed air feeding bench-top instruments and air-driven stirrers in a test laboratory, combining water and particle removal with a stable regulated supply at the pressure the instruments require.
Choose the size and port against the air demand of the circuit: the 400 size here carries a 3/8 inch port, one step in a range that runs from 1/8 to 1 inch. Pick the drain to suit access: automatic (this unit) for unattended condensate removal, manual for periodic draining, or the differential-pressure default. Pick the element grade: 40 um standard, or 5 um (this unit) where finer particulate removal matters. The square gauge here reads psi; MPa and bar scales are alternatives. The thread is G (BSPP); PT is the standard thread and NPT is also an order option. The regulator on this code is the low-pressure type, and its exact adjustment range is not published, so confirm it with us if your set pressure is critical. Because flow is published as curves rather than a single rated figure, send us your application parameters 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 GFR series as curves, not as a single rated figure, so we do not quote a number here. Tell us your operating pressure and air demand and we will confirm the flow from the datasheet on request before you order.
The W in the code selects the 5 um element, the finer of the two published grades, for applications where downstream equipment such as precision valves and instruments needs cleaner air. The 40 um grade is the standard choice for general air preparation. If you are unsure which grade your circuit needs, we will help you confirm it against the datasheet.
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.