Airtac GAFR Adjustable Filter Regulator GAFR400C15AS
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C15AS is a genuine two-in-one filter & regulator — a diversion-type water/particulate filter and a balanced pressure regulator built into ONE body. It has 1/2" ports, a 40 µm filter element and regulates 0.15 - 0.9 MPa (20 - 130 psi). It has no lubricator, so it adds no oil to the airflow.
- TypeFilter & regulator
- Port size1/2"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- Bowl materialMetal
- Drainautomatic
- Pressure gaugeCircular, MPa / psi
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR400C15AS
The GAFR400C15AS is a filter and regulator combined into a single body, eliminating the need for separate components. It cleans incoming air via a diversion structure that spins out liquid water and solid particles, then delivers a steady outlet pressure through a balanced, self-locking regulator mechanism.
This model features a 1/2in port, a working range of 0.15-0.9 MPa (20-130 psi), and a 40 um filtering element. The metal bowl has a 100 cc condensate capacity, and the unit weighs 880 g, making it a substantial component for a machine header or multi-station line.
Airtac GAFR Adjustable Filter Regulator GAFR400C15AS Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C15AS |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 1/2" (PT thread) |
| Filtering grade | 40 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | Metal |
| Drain type | Automatic drain |
| Fluid | Air |
|---|---|
| Max. pressure | 1.0 MPa (145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Capacity of drain bowl | 100 cc |
| Bracket | Included |
| Weight | 880 g |
Specifications follow the official AirTAC GAFR catalogue (pages 235-236). Air must not freeze in the unit. The fitted circular gauge reads in MPa / psi, set by the PT thread code. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR400C15AS
| GAFR400 | GA400 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| C | Bowl material: Metal. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 15 | Port size 1/2". This body offers 10 = 3/8", 15 = 1/2". |
| A | Drain: Automatic drain. |
| S | Standard type — 0.15 - 0.9 MPa (20 - 130 psi). This body offers Standard (S) or Lower pressure (L). |
| (blank) | Mounting bracket included. |
| (blank) | Circular pressure gauge fitted. |
| (blank) | Filtering grade 40 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| (blank) | No reverse-flow valve. |
The filter and the regulator are ONE body here — there is no separate GAF filter or GAR regulator part to assemble. Need lubrication downstream too? Add a lubricator by ordering the matching GAFC400-15 F.R.L. combination instead.
Size Class & Flow Envelope
- GAFR2001/8"-1/4" · 2000 L/min
- GAFR3001/4"-1/2" · 3500 L/min
- GAFR4003/8"-1/2" · 7000 L/min
- GAFR5003/4" · 8000 L/min
- GAFR6003/4"-1" · 12000 L/min
Figures are the end of the flow curve plotted in the AirTAC catalogue at 0.7 MPa inlet pressure — a sizing envelope for comparing bodies, not a rated flow. Read the catalogue curve for a real duty point. Outlet pressure falls as flow rises, so size a body with headroom above your peak demand.
| This model | GAFR400 · 1/2" · curve to 7000 L/min |
|---|---|
| One size down | GAFR300 |
| One size up | GAFR500 (curve to 8000 L/min) |
| Add a lubricator | GAFC400-15 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR400C15AS Is Used
Machine Tool Header
Feed a clean, regulated air supply to a machine tool's pneumatic actuation system. The 1/2in port and 100 cc bowl handle the demands of a single large cylinder or a small cluster of actuators.
Assembly Line Station
Protect precision valves and grippers on an automated assembly station. The 40 um element traps particles that could cause wear, while the automatic drain removes condensate without manual intervention.
Conveyor Control Cabinet
Supply a stable pressure to conveyor belt control valves and sensors. The balanced regulator holds the set pressure as line supply varies, keeping the system's logic consistent.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C15AS the Right Air-Prep Unit?
Choose the GAFR400 body for medium-flow applications needing a 1/2in port. The metal bowl (C) is a build choice; the common 1.0 MPa max pressure and -5 to 70 C rating apply to all bowl materials, so confirm compatibility for aggressive surroundings. The automatic drain (A) suits unattended or wet lines, while a blank would have meant semi-auto plus manual drains. The included mounting bracket is standard; a J code would omit it. The fitted circular gauge reads in MPa/psi, matching the PT thread. For finer filtration, select the W option for a 5 um element. If downstream lubrication is needed, order the matching GAFC400-15 combination instead. With a 1.0 MPa max supply, you have about 0.1 MPa above the 0.9 MPa top of the regulated range.
Quick checklist
- ✓ Body size for your peak flow (1/2" here)
- ✓ Standard 0.9 MPa or lower-pressure 0.4 MPa
- ✓ Bowl material: PC (blank), Metal (C), Nylon (N)
- ✓ Drain: semi-auto + manual, or automatic
- ✓ Element 40 µm or 5 µm
- ✓ Bracket kept or removed (J); add a lubricator = GAFC
Installation & Maintenance Notes
- check Install with the airflow arrow: IN to OUT, gauge/knob accessible.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Set pressure with the pressed-in self-locking knob; pull to adjust, press to lock.
- check Drain condensate before the 100 cc bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
- check Support the 880 g unit on its bracket, not on the tubing.
This is a filter and regulator only — it delivers filtered, pressure-set air with no added oil. If a downstream tool needs lubrication, add a separate lubricator or order the GAFC400-15 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR400C15AS FAQ
The GAFR400C15AS has a pressure range of 0.15-0.9 MPa (20-130 psi), a maximum pressure of 1.0 MPa (145 psi), and a proof pressure of 1.5 MPa (215 psi). The operating temperature range is -5 to 70 C. The metal condensate bowl has a 100 cc capacity, and the unit weighs 880 g.
The automatic drain expels accumulated condensate from the 100 cc metal bowl without manual intervention. This is ideal for wet lines or unattended operation, unlike the blank option which includes both semi-auto and manual drains.
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