Airtac GFR Filter Regulator GFR400C15AJNK
The AirTAC GFR Filter Regulator GFR400C15AJNK 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 GFR400C15AJNK
The GFR400C15AJNK is an AirTAC G-series filter regulator: filtration and pressure regulation in one body, with the trailing K code adding a reverse (check) valve. This 400-size unit carries a 1/2in PT port, an automatic drain that clears condensate from the polycarbonate bowl unaided, and the standard 40 um filter element. No pressure gauge (N) and no mounting bracket (J) are fitted; outlet pressure adjusts over 0.15-0.9 MPa (20-130 psi) with a maximum inlet of 1.0 MPa (145 psi), and the temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the GFR family, which spans 200, 300, 400 and 600 sizes. Related catalogue options include a 5 um element, manual or differential-pressure drains, an embedded square or external round gauge, G (BSPP) or NPT threads and a fitting bracket. Flow is published as curves rather than a single rated figure, so we confirm datasheet numbers for you on request.
Airtac GFR Filter Regulator GFR400C15AJNK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C15AJNK |
|---|---|
| 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 GFR400C15AJNK
| 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 GFR400C15AJNK Is Used
Multi-branch valve manifold feed
Supplying a bank of directional valves on an automation manifold, where the fitted check valve keeps neighbouring branches from back-feeding through the regulator when one leg is vented.
Bottling line stopper stations
Filtered, regulated air for the stopper and gate cylinders along a bottling conveyor, with the automatic drain handling condensate during continuous shifts.
Trailer air-knife dust blow-off
Regulated air supply to the blow-off nozzles on a trailer or container cleaning station, where the check valve holds the downstream side if the upstream supply is isolated.
Is the Airtac GFR Filter Regulator GFR400C15AJNK the Right Unit?
Match size and port to the circuit's air demand: the 400 size with a 1/2in PT port sits between the 300 and 600 in the G-series, so move to a 300 or 600 frame if your mains differ. This code's automatic drain suits unattended plant; manual drain suits supervised stations, and differential-pressure drain is the default alternative. The element is the standard 40 um grade, with the finer 5 um option under GFR400C15AJNWK. The K code's check valve is the differentiator here: choose it where the downstream circuit must not feed back through the unit. Gauge (N) and bracket (J) are omitted, and PT is the standard thread with G (BSPP) and NPT as catalogue options. Because AirTAC publishes flow as curves, not one rated number, ask us to confirm sizing against your application 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 GFR400C15AJNK FAQ
AirTAC publishes G-series flow as characteristic curves rather than a single rated figure, and actual delivery depends on your upstream pressure and set pressure. Share your line pressure and required flow and we will confirm the datasheet figures for you before you order.
The K in GFR400C15AJNK means a reverse (check) valve is fitted so downstream air cannot flow back through the regulator; the plain GFR400C15AJN omits it. Choose the K version where an isolated or vented branch must not back-feed, and we can confirm the check-valve details from the datasheet on request.
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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 GFR400C15AJNK
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.