AirTAC GFR400-10 Filter Regulator (GFR40010ALF1W)
The AirTAC AirTAC GFR400-10 Filter Regulator (GFR40010ALF1W) 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 gaugeFitted
- 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 (GFR40010ALF1W)
GFR40010ALF1W is an AirTAC G-series filter regulator that removes water and particulate from compressed air and holds downstream pressure steady in one body. This GFR400 configuration carries the 5 um W-grade element for finer filtration than the standard 40 um, plus 3/8 in PT ports, an automatic drain that ejects condensate on its own, the low-pressure type regulator, an embedded square gauge reading in MPa, and a mounting bracket included. The polycarbonate bowl is rated with the unit for 1.0 MPa (145 psi) maximum inlet and -5 to 70 C operation.
This is a genuine AirTAC part from the G-series, available in 200, 300, 400 and 600 sizes with 1/8 in to 1 in ports. Manual and differential-pressure drains, the 40 um standard element, round gauges in psi or bar, G (BSPP) and NPT threads, and no-bracket variants are among the catalogue options. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and the datasheet for your application on request.
AirTAC GFR400-10 Filter Regulator (GFR40010ALF1W) Technical Specifications
| Model | AirTAC GFR400-10 Filter Regulator (GFR40010ALF1W) |
|---|---|
| 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 | Low-pressure 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 | Fitted — square, MPa 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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 (GFR40010ALF1W)
| 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)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 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 (GFR40010ALF1W) Is Used
Laboratory air supply header
Conditions the air feeding bench instruments and pneumatic test rigs in a laboratory, taking water and fine dirt out before it reaches sensitive components.
Spray booth atomizing air
Prepares the atomizing air line for a paint spray booth, holding the setting steady so the gun receives consistent supply pressure with moisture and fine particles removed.
Control panel pilot air
Mounted inside a control panel, it feeds air to pilot-operated components and small actuators with clean, regulated air from the shop supply.
Is the AirTAC GFR400-10 Filter Regulator (GFR40010ALF1W) the Right Unit?
Choose this W version when the equipment downstream needs finer protection than the 40 um standard element provides; the same GFR400 body is offered with 40 um as well. The 3/8 in PT port suits mid-range lines, with 1/2 in (size step) or 1/4 in alternatives across the G-series. The automatic drain is the low-maintenance choice, with manual and differential-pressure drains as the other options. The embedded square gauge reads in MPa; psi or bar scales and an external round gauge can be ordered. PT is the standard thread, with G (BSPP) and NPT as options, and the J suffix omits the bracket. With automatic drain, the regulator adjustment range is 0.15-0.9 MPa (20-130 psi). Flow is published as curves, not a single rating, so confirm sizing against the application with us before ordering.
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 (GFR40010ALF1W) FAQ
The GFR series flow data is published as performance curves, not as a single rated number, so we do not state a figure here. Share your line pressure and consumption details and we will confirm the sizing from the datasheet on request.
The 40 um element is the standard grade and covers most general-purpose drops. This W version carries the 5 um element for circuits with finer components downstream. Both are catalogue options on the same GFR400 body, so match the grade to the equipment being protected.
Authorized Export Seller
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 (GFR40010ALF1W)
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.