Airtac GFR Filter Regulator GFR400C10AC1WK
The AirTAC GFR Filter Regulator GFR400C10AC1WK 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.
- TypeFilter regulator
- Port sizeSee datasheet
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure 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 GFR Filter Regulator GFR400C10AC1WK
The GFR400C10AC1WK is an AirTAC G-series filter regulator combining the fine 5 um filter element with a built-in reverse (check) valve: it removes water and finer particulate from compressed air, holds downstream pressure at your setpoint, and blocks backflow from the downstream side - all in one body. This configuration is the size 400 unit with a 3/8 in PT port, an automatic drain that purges condensate from the polycarbonate bowl, and an external round pressure gauge reading in MPa. With the automatic drain, the regulation range is 0.15-0.9 MPa (20-130 psi); maximum inlet pressure is 1.0 MPa (145 psi) and operating temperature is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The W suffix selects the 5 um element and K adds the check valve; the same size 400 body is available without either. Across the G-series filter regulator you can order sizes 200 to 600, ports from 1/8 in to 1 in, manual or automatic drains, G (BSPP) or NPT threads, no-bracket (J) and no-gauge (N) variants, and square gauges with psi or bar scales. Flow is published as performance curves rather than a single rated figure, so ask us and we will confirm the datasheet numbers for your application.
Airtac GFR Filter Regulator GFR400C10AC1WK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C10AC1WK |
|---|---|
| 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.
Model Code: Airtac GFR Filter Regulator GFR400C10AC1WK
| 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.
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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR400C10AC1WK Is Used
Robotic gripper supply
Regulated, finely filtered air to a robot gripper circuit, with the check valve isolating the regulated side from backflow and the 5 um element helping protect the gripper valves.
Pneumatic control module air
A clean, regulated feed to a control cabinet of small pilot valves and sensors, where fine filtration and one-way flow protection sit in a single compact body.
Precision tool drops in a maintenance shop
A workbench drop for inline die grinders and finishing tools, with the 5 um element catching finer debris and the check valve preventing backflow down the shared header.
Is the Airtac GFR Filter Regulator GFR400C10AC1WK the Right Unit?
Order this WK code when you need both finer filtration (W, 5 um) and reverse-flow protection (K, check valve) in the size 400 body with a 3/8 in PT port; drop either suffix if you need only one. Step the size (200/300/400/600) against required flow. Drain: automatic (this code), manual (M), or the default differential-pressure type. Gauge: external round, MPa scale (C1); embedded square gauges and psi/bar scales are available in the family. Thread: PT is the standard, with G (BSPP) and NPT as catalogue options, and the bracket is included. Flow is published as curves, not a single rating - send us your flow and pressure requirement and we will confirm sizing against the application before you order.
Quick checklist
- ✓ Body size for your peak flow (See datasheet 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 GFR Filter Regulator GFR400C10AC1WK FAQ
Yes - that is exactly what the WK suffix encodes on the GFR400C10AC1WK: W for the 5 um filter element, K for the built-in reverse (check) valve. The rest of the decode is size 400, 3/8 in PT port, automatic drain and external round MPa gauge.
AirTAC publishes G-series flow as performance curves rather than a single rated figure, so we do not quote a number here. Tell us your flow and pressure requirement and we will confirm the datasheet curve data for this exact model on request.
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Genuine AirTAC parts produced by AirTAC factory.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for Airtac GFR Filter Regulator GFR400C10AC1WK
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.