Airtac GFR Filter Regulator GFR400C15AJC1W
The AirTAC GFR Filter Regulator GFR400C15AJC1W 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 GFR400C15AJC1W
The GFR400C15AJC1W is an AirTAC G-series filter regulator: filter and regulator in one body with a drain bowl, no lubricator. The W in the code specifies the fine 5 um element instead of the 40 um standard, for circuits where smaller particles must be removed ahead of sensitive equipment. This 400-size unit takes a 1/2 in PT thread, includes an external round gauge reading in MPa (C1), and is supplied without a bracket (J). Drainage is automatic, so condensate is expelled without operator attention. Regulation range is 0.15-0.9 MPa (20-130 psi) with the automatic drain, max inlet is 1.0 MPa (145 psi), temperature range is -5 to 70 C, and the bowl is polycarbonate (PC).
This is a genuine AirTAC part. The G-series filter regulator family spans 200, 300, 400 and 600 sizes in ports from 1/8 to 1 in, with differential-pressure, automatic or manual drains, 40 um or 5 um (W) elements, embedded square or external round gauges in MPa, psi or bar scales, optional reverse/check valve (K), and G (BSPP) or NPT thread options alongside the PT standard. Flow figures are published as curves rather than a single rating, so we confirm datasheet values on request.
Airtac GFR Filter Regulator GFR400C15AJC1W Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C15AJC1W |
|---|---|
| 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 GFR400C15AJC1W
| 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 GFR400C15AJC1W Is Used
Analytical instrument enclosure purge and supply
Feeding air to sample-handling pneumatics and enclosure purges on a lab or pilot-plant analyser train, the 5 um element removes finer particles before the instrument-side valves, and the automatic drain copes with condensate in unattended runs.
Paint spray booth atomizing air prep
Installed on the atomizing and trigger-air drop to a spray gun in a finishing booth, the 5 um grade keeps fine particulate out of the gun's air passages while the regulator pins the atomizing pressure the finish recipe calls for.
CNC machine tool air supply
Mounted where the shop air enters a CNC machining centre, it conditions the air feeding tool changers, spindle air seals and clamping circuits, with the 5 um element giving finer protection for the machine's sensitive pneumatic components.
Is the Airtac GFR Filter Regulator GFR400C15AJC1W the Right Unit?
Choose this W code when 40 um is not fine enough for what sits downstream and you want the 5 um element; keep the standard grade for general actuator supply where fine filtration adds differential pressure for no benefit. The 400 size with 1/2 in PT port matches lines already in 1/2 in piping; step sizes by comparing the flow curves for your duty point, not the port alone. Automatic drain keeps bowl drainage hands-off on this version. The round gauge reads MPa; psi (scale 2) and bar (scale 3) scales are options, and G (BSPP) and NPT threads can be ordered instead of PT. A bracket is available by dropping the J code. Because flow is published as curves rather than a single rated figure, 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 GFR400C15AJC1W FAQ
AirTAC publishes flow for the GFR400 series as curves rather than a single rated figure, so we cannot honestly quote one l/min or SCFM number, and the finer 5 um element does affect the curve compared with 40 um. Share your operating pressure and duty flow and we will confirm the datasheet figures on request before you order.
Use W when the equipment directly downstream is sensitive to finer particles: spray guns, instrumentation, precision air motors or machine-tool internals. Stay with the standard 40 um grade for general cylinders and valve islands where the finer grade buys you nothing. The rest of the code is unchanged: 1/2 in PT port, automatic drain, MPa round gauge, no bracket, 0.15-0.9 MPa adjust range, 1.0 MPa max inlet.
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Request a Quote for Airtac GFR Filter Regulator GFR400C15AJC1W
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