The AirTAC GFR40010JF2WTK AirTAC Filter Regulator NPT3/8, 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" 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 GFR40010JF2WTK is a size-400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is fitted with 3/8 in NPT ports, a fine 5 um filter element (the 40 um standard element is available as an option), a differential-pressure drain that bleeds condensate automatically as flow passes through, an embedded square gauge reading in psi, and a reverse (check) valve that holds downstream pressure when the supply is cut. No mounting bracket is included with this code. Maximum inlet pressure is 1.0 MPa (145 psi), the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C, non-freezing. The polycarbonate bowl suits size 400; only size 600 units use an aluminium alloy bowl.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600, with port options from 1/8 to 1 inch, PT as the standard thread and G (BSPP) or NPT as order options, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, and square or external round gauges scaled in MPa, psi or bar. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GFR40010JF2WTK AirTAC Filter Regulator NPT3/8, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 5 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 — square, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
|---|---|
| 10 | Port size PT3/8". 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Feeding tool-clamp and actuator circuits on a CNC machining centre, where the 5 um element protects precision valves from particulate and the regulator holds a steady set pressure at the machine.
Conditioning the air supply to cylinder-driven diverters and stoppers on a packaging conveyor line, with the check valve holding the set pressure if the plant air supply drops.
Filtering and regulating the air feed to spray guns and booth controls in a paint shop, where the 5 um grade and a stable regulated pressure support consistent finishing work.
Choose the size and port step against the air demand of the circuit: this unit is size 400 with 3/8 in NPT ports, and larger sizes carry larger ports and more flow capacity. Because AirTAC publishes flow only as curves, not a single rating, ask us to confirm sizing against your application before ordering. This code already fixes several choices: 5 um filtration for finer protection of downstream equipment, a differential-pressure drain, a square psi gauge, a reverse (check) valve, and no mounting bracket. If you need automatic or manual draining, a 40 um element, a different gauge scale, a bracket, or G (BSPP) or PT threads instead of NPT, those are available as other codes in the same series. Note the regulation range for this drain type is 0.15-0.9 MPa (20-130 psi) and maximum inlet pressure is 1.0 MPa (145 psi).
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow 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 application and we will confirm the flow figures from the datasheet so you can size the unit correctly before ordering.
This code has no drain letter, so it carries the default differential-pressure drain: condensate is discharged automatically as air flows through the unit, with no manual intervention. If you prefer a fully automatic drain or a manual drain, those are available as other GFR400 codes; note the regulation range differs by drain type.
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.