AirTAC GFR400-10 Filter Regulator (GFR40010AJNW)
The AirTAC AirTAC GFR400-10 Filter Regulator (GFR40010AJNW) 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 automatic 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.
- TypeFilter regulator
- Port sizePT3/8"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- DrainAutomatic drain
- Bowl materialPC
- Pressure gaugeNot fitted
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC GFR400-10 Filter Regulator (GFR40010AJNW)
GFR40010AJNW is an AirTAC G-series filter regulator: filtration and pressure regulation combined in one body. The 400 size takes a 3/8in PT port, the automatic drain clears condensate from the polycarbonate bowl unattended, and the W code specifies the finer 5 um element instead of the standard 40 um grade - a good match where pilot valves and precision actuators sit downstream. This code carries no gauge, no mounting bracket and no check valve.
This is a genuine AirTAC part distributed in the US market. The G-series spans sizes 200 to 600 with a step up in port and flow at each size, plus drain choices (automatic, manual, differential-pressure), gauge options in MPa, psi or bar scales, and G (BSPP) or NPT thread versions as catalogue options. Max working pressure is 1.0 MPa (145 psi); with the automatic drain the regulator adjusts from 0.15 to 0.9 MPa (20 to 130 psi). Rated flow is published as curves rather than a single figure, so we confirm datasheet numbers on request.
AirTAC GFR400-10 Filter Regulator (GFR40010AJNW) Technical Specifications
| Model | AirTAC GFR400-10 Filter Regulator (GFR40010AJNW) |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (PT 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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Not fitted |
| 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.
Model Code: AirTAC GFR400-10 Filter Regulator (GFR40010AJNW)
| 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". |
| A | Drain: Automatic 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. |
| N | No pressure gauge (N). |
| (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. |
| W | Filtering grade 5 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.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
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) |
Where the AirTAC GFR400-10 Filter Regulator (GFR40010AJNW) Is Used
Process valve pilot-air supply
Conditions the pilot air feeding solenoid and positioner pilots on an automated process-skid valve manifold, where the 5 um element helps keep small orifices free of particulate.
Tablet press control air
Prepares the air for control circuits on a pharmaceutical tablet press, supplying filtered, regulated pressure to the instrumentation and actuation loops that run around the clock.
Pneumatic control panel
Serves as the supply conditioner inside a machine's pneumatic control panel, feeding directional valves and logic components downstream at a set pressure with condensate drained automatically.
Is the AirTAC GFR400-10 Filter Regulator (GFR40010AJNW) the Right Unit?
Choose the 400 size where a 3/8in port and its flow capacity match your demand; we will check the published flow curves against your application before you order. The W element (5 um) is the key choice in this code versus the standard 40 um grade - select 5 um when downstream pilot valves or fine components need cleaner air, accepting more frequent element checks. The automatic drain suits unattended installations; manual and differential-pressure drains are available in other codes. No gauge is fitted here; gauge-bearing codes offer square embedded or round external gauges in MPa, psi or bar. PT is the standard thread, with G and NPT orderable; J means no bracket is fitted.
Quick checklist
- ✓ Body size for your peak flow (PT3/8" here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
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 GFR400-10 Filter Regulator (GFR40010AJNW) FAQ
AirTAC publishes rated flow for the G series as curves, not as a single number, so we do not state a figure that is not in the datasheet. Share your line pressure and consumption and we will confirm sizing from the datasheet on request.
W specifies the finer 5 um filter element instead of the standard 40 um grade, for cleaner air to sensitive downstream components. The rest of the code reads: A = automatic drain, J = no bracket, N = no gauge.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for AirTAC GFR400-10 Filter Regulator (GFR40010AJNW)
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.