The AirTAC AirTAC GFR400C10F2WK Filter Regulator 3/8 in PT, 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 GFR400C10F2WK is an AirTAC GFR400 filter regulator that removes water and particulate from compressed air and holds downstream pressure steady in a single body. This configuration carries a PT3/8 port, a 5 um filter element (the W grade, finer than the 40 um standard), a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and a standard regulator adjustable from 0.15-0.9 MPa (20-130 psi). An embedded square gauge with a psi scale is fitted, a reverse/check valve (code K) holds downstream pressure when the upstream supply drops, and a mounting bracket is included. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600, with a choice of port size, PT, G or NPT thread, drain type, filter grade and gauge scale, so a matching unit can be specified for most general industrial air-preparation points. 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 | AirTAC GFR400C10F2WK Filter Regulator 3/8 in PT, 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) |
Point-of-use preparation for the air feeding a CNC machining centre's pneumatic clamps and tool-change cylinders: the 5 um element keeps fine particulate out of the machine's valves, and the regulator holds a steady set pressure so clamping force does not wander between cycles.
Mounted at the drop ahead of the pneumatic sealing and folding cylinders on a carton packaging line. Filtered, regulated air keeps the cylinders cycling consistently through a shift, while the check valve holds the downstream setting if the shop-air header pressure dips.
General air preparation for a manual assembly cell running pneumatic press cylinders and actuated fixtures. The differential-pressure drain handles condensate without operator attention, and the psi-scale square gauge lets the cell operator verify set pressure at a glance.
Start with the port step: this unit is size 400 with a 3/8 in PT port; step up or down a size if your main needs a different connection, since larger sizes carry more flow. Choose the drain to suit access: differential-pressure (this unit) needs no operator attention, automatic suits unattended duty, and manual suits points that are checked routinely. Choose the element grade: 40 um is the standard general-purpose grade, while the 5 um W grade fitted here protects finer downstream equipment. Gauge scale is selectable (MPa, psi or bar) and PT is the standard thread, with G (BSPP) and NPT available as order options; a bracket can be included or omitted.
One honest note before ordering: AirTAC publishes filter-regulator flow as curves, not as a single rated number, so we cannot quote a rated flow figure here. Send us your application details and we will confirm the sizing against the datasheet curves on request.
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 filter-regulator flow as performance curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Tell us your application and we will confirm the sizing against the datasheet curves on request.
The W in the code GFR400C10F2WK selects the 5 um filter element; the catalogue standard for GFR units is 40 um. The 5 um grade is the right choice when downstream equipment - precision valves, air tools or instrumentation - needs finer particulate removal than the general-purpose 40 um grade provides.
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.