Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNWK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNWK 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 3/8" ports, a 5 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 size3/8"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- Bowl materialPC
- Drainautomatic
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNWK
The GAFR40010ASJNWK is a genuine AirTAC filter and regulator combined into a single body, so incoming air is spun to separate liquid water and solid particles before a balanced regulator sets a steady outlet pressure. This 3/8in unit operates from 0.15 to 0.9 MPa (20-130 psi) and comes with a 5 um element for finer filtration.
With a 100 cc condensate bowl and an 880 g mass, this size class suits medium-flow machine circuits. The automatic drain clears water without manual intervention, while the pressed-in self-locking knob keeps the set pressure stable against vibration. No lubricator is fitted, and this unit has only one bowl for condensate.
Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNWK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNWK |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 3/8" (PT thread) |
| Filtering grade | 5 µm |
| Pressure range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Type | Standard |
| Bowl material | PC |
| 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. No gauge is supplied with this model — the gauge connection on a GAFR400 is 1/4" if you add one. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNWK
| GAFR400 | GA400 series filter & regulator — sets the port range, drain-bowl capacity and weight. |
|---|---|
| (blank) | Bowl material: PC. Available on this body: PC (blank), Metal (C), Nylon (N). |
| 10 | Port size 3/8". 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. |
| N | No pressure gauge; 1/4" gauge connection. |
| W | Filtering grade 5 µm. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached. |
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 GAFC400-10 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 · 3/8" · curve to 7000 L/min |
|---|---|
| One size down | GAFR300 |
| One size up | GAFR500 (curve to 8000 L/min) |
| Add a lubricator | GAFC400-10 (F.R.L. combination) |
Where the Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNWK Is Used
Machine tool circuits
Feed a 3/8in header on a CNC or lathe with clean, regulated air at up to 0.9 MPa. The 5 um element protects precision valves and actuators from fine wear particles.
Assembly line stations
Supply multiple pneumatic cylinders on a medium assembly station. The 100 cc bowl and automatic drain keep the line running through a full shift without manual draining.
Test benches
Use on a test rig where stable pressure is critical. The balanced regulator holds the setpoint as shop supply fluctuates, and the 1/4in gauge connection allows a remote readout.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNWK the Right Air-Prep Unit?
Choose the GAFR400 body when 3/8in ports and a 100 cc drain bowl match your flow needs; it sits above the GAFR300 (60 cc bowl) and below the GAFR500 (108 cc bowl). The PC bowl and 5 um element suit general industrial air, while the automatic drain handles wet or unattended lines. This model omits the mounting bracket (J) and the gauge (N), so plan for panel mounting and a 1/4in gauge connection if readout is required. The PT thread carries an MPa/psi scale, and the reverse-flow (reflux) valve is fitted as an ordering difference. If oil is needed downstream, order the matching GAFC400-10 combination instead. 1.0 MPa max supply leaves about 0.1 MPa above the 0.9 MPa top of the range.
Quick checklist
- ✓ Body size for your peak flow (3/8" 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 GAFC400-10 combination; do not expect an oil mist from this unit.
Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNWK FAQ
Working pressure is 0.15-0.9 MPa (20-130 psi), with a 1.0 MPa (145 psi) maximum and 1.5 MPa (215 psi) proof pressure. Temperature range is -5 to 70 C. The drain bowl holds 100 cc and the unit weighs 880 g. The 3/8in port and 5 um element complete the specification.
The N code after the port means no gauge is supplied; the 1/4in gauge connection is available if you add one later. The J code omits the mounting bracket, which suits panel-mount installations or existing brackets. Both options reduce cost when the standard accessories are not needed.
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