The AirTAC GFR400C15JF1WTK AirTAC Filter Regulator NPT1/2, 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 GFR400C15JF1WTK is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is built with a 1/2 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, an embedded square pressure gauge scaled in MPa, and a built-in reverse (check) valve that holds the downstream setting if upstream supply is interrupted. It is supplied without a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator setting range is 0.15-0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl suits general indoor compressed-air service.
This is a genuine AirTAC part. The GFR filter-regulator family is published in sizes 200, 300, 400 and 600, with port sizes from 1/8 to 1 inch, PT as the standard thread and G (BSPP) or NPT as order options, a choice of 40 um or 5 um filtration, differential-pressure, automatic or manual drains, embedded square or optional external round gauges with MPa, psi or bar scales, and an optional low-pressure regulator type. Flow for this series is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet and sizing figures for your application on request.
| Model | GFR400C15JF1WTK AirTAC Filter Regulator NPT1/2, 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) |
Feeds filtered, pressure-regulated air to the tool-clamp, tool-changer and coolant-nozzle circuits of a CNC machining centre, with the 5 um element protecting fine pilot valves and the check valve holding the setting through supply dips.
Conditions the air feeding spray guns and atomising headers in a paint booth, where the 5 um grade keeps water and particulate out of the finish and the regulator holds a steady atomising pressure at each station.
Supplies regulated air to the cylinders and vacuum generators on a carton-forming and case-sealing conveyor line, with the differential-pressure drain shedding condensate during continuous shift running and the gauge letting operators verify set pressure at a glance.
Size 400 with a 1/2 in port sits in the upper-middle of the GFR range; step up to size 600 or down to size 300 depending on the flow your line needs - since flow is published as curves, not a single rating, ask us to confirm sizing against your application before ordering. This unit carries the 5 um element (code W); the 40 um standard grade is available if your downstream equipment does not need finer filtration. The differential-pressure drain works hands-free where the unit sees steady flow; choose automatic drain (code A) or manual drain (code M) if your duty pattern suits those better - note the manual-drain variant widens the setting range down to 0.05 MPa and has a 0-0.9 MPa inlet limit. The fitted square gauge reads in MPa; psi or bar scales and an external round gauge are order options. NPT is the thread on this code; PT (standard) and G (BSPP) are the other catalogue options. Brackets are optional on GFR - this code omits one.
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 number, so we do not quote a l/min or SCFM figure. Send us your application details and we will confirm the flow-curve and datasheet figures on request so you can size the unit correctly.
The W in the code selects the 5 um filter grade instead of the 40 um standard, for downstream equipment that needs finer filtration, and the K selects a built-in reverse (check) valve that holds the regulated downstream pressure if the upstream supply drops. Both are catalogue options on the GFR family, as are the drain type, gauge scale and thread.
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.