The AirTAC GFR400C10JF3WT AirTAC Filter Regulator NPT3/8, 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 GFR400C10JF3WT is a size 400 filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single compact body. This configuration carries a 3/8 in NPT port, a 5 um filter element (the finer of the two catalogue grades), a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and an embedded square gauge scaled in bar so the set pressure is always visible. The standard-type regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the unit is rated for -5 to 70 C in non-freezing conditions.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, PT, G or NPT threads, 40 um or 5 um elements, differential-pressure, automatic or manual drains, and square or round gauges scaled in MPa, psi or bar. Flow figures for this series are published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR400C10JF3WT AirTAC Filter Regulator NPT3/8, 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) |
Feeding clean, pressure-stable air to the tool-clamp and chip-clearing circuits of a CNC machining centre, where the 5 um element protects tight-tolerance valves from fine particulate and the bar-scale gauge lets setters verify set pressure at a glance.
Regulating the air feeding conveyor stoppers, diverters and pusher cylinders on a packaging line, with the differential-pressure drain clearing condensate automatically so the line keeps running through humid summer shifts without daily bowl draining.
Serving as the filtered, regulated drop point for a manual assembly cell in a factory, giving operators a stable working pressure at the bench while the 5 um element strips water and fine dirt before it reaches air tools and fixtures.
Size 400 with a 3/8 in port sits in the upper-middle of the GFR range, so step up to size 600 or down to size 300 depending on the flow your line needs - we can check the published flow curves against your demand. The 5 um element (code W) suits points of use that see finer contamination than the standard 40 um grade; both grades are interchangeable within the family. The differential-pressure drain needs no operator attention, but if your compressor cycles lightly or the unit sits in an awkward spot, an automatic or manual drain variant can be specified instead. The square gauge here reads in bar; MPa and psi scales are also available, and an external round gauge can be ordered. This unit is supplied without a mounting bracket (code J); a bracketed version exists if you want it fixed to a panel or wall. The T suffix selects an NPT thread; PT is the standard thread and G (BSPP) is also a catalogue option. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application 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 rather than a single rated figure, so we do not quote a l/min, m3/h or SCFM number. Tell us your application and we will confirm the flow figures from the datasheet against your demand before you order.
The W in the code selects the finer 5 um grade; the GFR family's standard element is 40 um. The 5 um grade suits points of use that see finer contamination, such as instrument feeds or precision valves. If your line only needs coarse protection, the 40 um version of the same size 400 unit is available as a catalogue option.
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.