Airtac GFR Filter Regulator GFR400C15N
The AirTAC GFR Filter Regulator GFR400C15N 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 GFR400C15N
The GFR400C15N is an AirTAC G-series filter regulator: filtration and pressure regulation in a single body, with a drain bowl and no lubricator. This 400-size unit has a 1/2 in PT port, the default differential-pressure drain, the standard 40 um element and no gauge fitted. With the differential-pressure drain, the regulation range is 0.15-0.9 MPa (20-130 psi) and the maximum inlet pressure is 1.0 MPa (145 psi). The bowl is polycarbonate (PC) on the 400 size, and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The G-series spans sizes 200 to 600, with 40 um standard or 5 um (W) elements, differential-pressure, automatic or manual drains, embedded square or optional external round gauges, and G (BSPP) or NPT thread options; a mounting bracket is included on this code. Flow is published as curves rather than a single rating, so ask us to confirm sizing and the datasheet for your application on request.
Airtac GFR Filter Regulator GFR400C15N Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C15N |
|---|---|
| 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 GFR400C15N
| 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 GFR400C15N Is Used
Assembly-tool air drops
Feeding impact drivers, nutrunners and other air tools at an assembly station, where the 40 um element handles general-purpose shop air and the regulator sets a consistent tool pressure.
Blow-off and cooling nozzles
Supplying blow-off guns, air knives and part-cooling nozzles on a production line, where the regulator lets operators set the line pressure the job actually needs.
Workshop bench regulation
Installed at the head of a maintenance workshop drop, cleaning the shared air main and giving technicians an adjustable supply for jigs, clamps and test fixtures.
Is the Airtac GFR Filter Regulator GFR400C15N the Right Unit?
Match the G-series size (200/300/400/600) to the port and flow your circuit needs; the 400 size with a 1/2 in PT port is the natural step for larger machine supply lines. Leaving the drain position blank gives the differential-pressure drain, the series default, with a regulation range of 0.15-0.9 MPa (20-130 psi); choose the manual-drain version if you need set pressures down to 0.05 MPa (7 psi), or an automatic drain for unattended duty. The blank filter position is the standard 40 um element - fine for general cylinder and valve supply; specify the W code for the 5 um element where cleaner air is needed. No gauge is fitted on this code; an embedded square gauge or an external round gauge can be specified in the series. Thread is PT as standard, with G (BSPP) and NPT as catalogue options. Flow is published as curves, not a single rating, so ask us to confirm sizing 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 GFR400C15N FAQ
AirTAC publishes flow for this series as performance curves rather than a single rated figure, so we do not quote a number here. Share your operating pressure and air demand and we will confirm the correct size from the datasheet on request before you order.
Leaving the drain position blank selects the differential-pressure drain, the series default: the bowl vents itself as conditions call for it, with no operator action. Note that with this drain type the regulation range is 0.15-0.9 MPa (20-130 psi); if you need set pressures down to 0.05 MPa (7 psi), the manual-drain version covers that range.
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Request a Quote for Airtac GFR Filter Regulator GFR400C15N
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