Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJ
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJ 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 GAFR400C15ASJ
The GAFR400C15ASJ is a filter and regulator combined into one body, eliminating the need for separate components. It spins incoming air to separate liquid water and trap solid particles before a balanced regulator delivers a steady outlet pressure, with no lubricator involved.
This model uses a 1/2in port, a 0.15-0.9 MPa (20-130 psi) standard pressure range, and a 40 um element. The metal bowl holds 100 cc of condensate, and the unit weighs 880 g, making it a substantial mid-range component for machine-level air preparation.
Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJ Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJ |
|---|---|
| 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 | Not included (J) |
| 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 GAFR400C15ASJ
| 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). |
| J | No bracket (J) — supplied without the mounting bracket. |
| (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 GAFR400C15ASJ Is Used
Machine Tool Air Prep
Feed a CNC spindle or hydraulic valve manifold with clean, regulated air at 1/2in port size, where the 100 cc bowl handles condensate from continuous operation.
Assembly Line Stations
Supply multiple pneumatic actuators on a dedicated station header, using the automatic drain to avoid maintenance stops in high-humidity plant air.
Test Bench Instrumentation
Provide stable pressure to calibration fixtures or leak testers, relying on the balanced regulator to hold setpoint as shop supply fluctuates.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C15ASJ the Right Air-Prep Unit?
Choose the GAFR400 body for 3/8in or 1/2in port lines where flow demand reaches 7000 L/min at 0.7 MPa inlet, stepping down from the GAFR500's larger envelope if space is tighter. The metal bowl suits demanding environments, while the automatic drain handles wet lines without manual attention, and the omitted bracket (J) suits panel mounting. The fitted gauge reads in MPa/psi with PT threads, and the 40 um element handles general shop air; select the 5 um option for finer filtration. If oil is needed downstream, order the matching GAFC400-15 combination instead. Max supply 1.0 MPa leaves about 0.1 MPa above the 0.9 MPa top of the range, so plan inlet pressure near the maximum for full output.
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 GAFR400C15ASJ FAQ
Working pressure is 0.15-0.9 MPa (20-130 psi), max pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), and temperature range is -5 to 70 C. The metal drain bowl holds 100 cc, the unit weighs 880 g, and the flow curve is plotted to 7000 L/min at 0.7 MPa inlet.
The J code omits the standard bracket for installations where the unit is panel-mounted or secured by existing hardware. This reduces parts and allows direct integration into a machine frame, while the 880 g weight still requires proper support rather than tubing alone.
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Covers non-human-caused product damage.
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