Airtac GFR Filter Regulator GFR400C15ANWK
The AirTAC GFR Filter Regulator GFR400C15ANWK 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 GFR400C15ANWK
The GFR series is AirTAC's filter regulator: filtration and pressure regulation in one body on a single 1/2 in PT connection. This 400-size unit carries the fine 5 um element (W) for air feeding sensitive pneumatic equipment, a reverse (check) valve fitted (K), an automatic drain (A) that empties the polycarbonate bowl unattended, and no gauge (N). Maximum inlet pressure is 1.0 MPa (145 psi) and the outlet is adjustable 0.15-0.9 MPa (20-130 psi) on this automatic-drain version.
This is a genuine AirTAC part. G-series filter regulators come in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options for manual or differential-pressure draining, 40 um or 5 um elements, an embedded square gauge or external round gauge, a reverse (check) valve and G (BSPP) or NPT threads. Working temperature is -5 to 70 C (non-freezing) and a mounting bracket is included. Flow is published as curves rather than a single rating, so we confirm the datasheet figures on request.
Airtac GFR Filter Regulator GFR400C15ANWK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C15ANWK |
|---|---|
| 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 GFR400C15ANWK
| 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 GFR400C15ANWK Is Used
Maintenance workshop fine-air drop
A conditioned 1/2 in bench drop in a plant maintenance shop feeding air tools and small pneumatic devices that need finer-than-standard filtration, with filter, regulator and check valve in one body.
Instrument-air branch to control valves
Conditions the branch supplying positioner-fed control valves on a process skid, where the 5 um element and the fitted check valve are part of the instrumentation air arrangement at the takeoff.
Clean-air point for sealing and gluing heads
Feeds the pneumatic metering and sealing heads on a packaging or converting machine, where grit in the air would score the dosing surfaces and the fine element guards them.
Is the Airtac GFR Filter Regulator GFR400C15ANWK the Right Unit?
Size 400 with a 1/2 in PT port is the mid step of the G-series range; step to 300 or 600 to match the line's air demand. The W selects the 5 um element for finer filtration than the standard 40 um, and the K adds a reverse (check) valve in the same body - drop the K for the version without it. The automatic drain (A) suits unattended equipment; manual (M) and differential-pressure drains are also catalogued. No gauge is fitted (N); an embedded square gauge or external round gauge with MPa, psi or bar scale can be ordered. Thread is PT as standard, with G (BSPP) and NPT as catalogue options, and the mounting bracket is included.
Because AirTAC publishes flow as curves rather than one rated number, ask us to confirm sizing against the datasheet before ordering.
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 GFR400C15ANWK FAQ
AirTAC does not publish a single rated-flow figure for this series - flow is given as characteristic curves against pressure. Send us your inlet pressure and the demand of the equipment downstream and we will confirm the sizing from the datasheet on request.
The N in the code means no gauge is fitted, so you read the regulated pressure on your own downstream gauge. If you prefer an indication on the unit itself, GFR models can be ordered with an embedded square gauge or an external round gauge, and the round gauge is available with MPa, psi or bar scale - just tell us which scale your operators work in.
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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 GFR Filter Regulator GFR400C15ANWK
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.