AirTAC GFR400-10 Filter Regulator (GFR40010AF1WK)
The AirTAC AirTAC GFR400-10 Filter Regulator (GFR40010AF1WK) 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 (GFR40010AF1WK)
The GFR40010AF1WK is an AirTAC G-series filter regulator with a reverse (check) valve fitted: filtration and pressure regulation in one body, with the K code adding a path that lets downstream air pass back through the unit when the upstream supply is removed. This 400-size unit carries 3/8 in PT ports, an automatic drain on the PC bowl, a 5 um (W) filtering element, and an embedded square gauge scaled in MPa. The regulated outlet is set anywhere in the 0.15-0.9 MPa (20-130 psi) range against a 1.0 MPa (145 psi) maximum inlet.
It is a genuine AirTAC catalogue part. The G series runs from size 200 to 600 with PT, G (BSPP) and NPT threads, differential-pressure, automatic or manual drains, and 40 um or 5 um elements; the operating temperature range is -5 to 70 C, non-freezing, and the 400-size bowl is polycarbonate (PC). Because published flow data comes as curves rather than a single rating, we confirm the datasheet figures for your line on request.
AirTAC GFR400-10 Filter Regulator (GFR40010AF1WK) Technical Specifications
| Model | AirTAC GFR400-10 Filter Regulator (GFR40010AF1WK) |
|---|---|
| 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 | Fitted — square, MPa 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.
Model Code: AirTAC GFR400-10 Filter Regulator (GFR40010AF1WK)
| 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. |
| (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. |
| 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.
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 (GFR40010AF1WK) Is Used
Automated assembly cell supply
Feeding cylinders and actuators across an assembly cell from a 3/8 in branch, with the check valve letting downstream air pass back through the unit when the supply is shut off.
Laboratory test-bench air
Supplying regulated air to pneumatic test rigs in a laboratory, where the 5 um element protects instrumentation from particulates and the automatic drain handles condensate.
Bottling line valve actuators
Regulating air to fill and capper valve actuators on a bottling line, with automatic draining and 5 um filtration helping keep moisture and particles out of the valve manifold.
Is the AirTAC GFR400-10 Filter Regulator (GFR40010AF1WK) the Right Unit?
Pick the K version when your circuit benefits from reverse flow past the regulator - for example where downstream air should vent back through the unit when the supply valve closes; otherwise the plain GFR40010AF1W without K is the equivalent unit. Drain choice: automatic (this code) versus manual or the default differential-pressure type. Filter grade: 5 um (W) versus the 40 um standard. Gauge: embedded square, MPa scale (F1), with psi (2) and bar (3) scales and an external round gauge as alternatives. Thread: PT is standard; G and NPT are orderable options. Flow is published as curves, not a single rated figure, so share your flow and pressure duty and we will confirm sizing against the datasheet before you order.
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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC GFR400-10 Filter Regulator (GFR40010AF1WK) FAQ
Flow for this filter regulator is published by AirTAC as performance curves, not a single rated number, so there is no one flow figure to quote. Give us your required flow, port size and working pressure, and we will confirm the datasheet curve and correct sizing on request before you order.
K means a reverse (check) valve is fitted, allowing downstream air to pass back through the unit when the upstream supply is removed. Without the K the unit is the same 3/8 in PT, automatic-drain, 5 um filter regulator with a square MPa gauge, but with no reverse-flow path.
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 (GFR40010AF1WK)
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.