Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNK 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 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 size3/8"
- Pressure range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- Bowl materialPC
- Drainautomatic
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNK
The GAFR40010ASJNK is a filter and regulator combined into a single body, so incoming air is cleaned and then set to a steady outlet pressure without needing separate units. This 3/8in version operates from 0.15 to 0.9 MPa (20-130 psi) and uses a 40 um element to trap particles.
Its 100 cc condensate bowl collects the water and solids spun out by the diversion structure. Because the regulator is balanced and self-locking, the set pressure stays stable even when supply pressure fluctuates or the machine vibrates.
Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNK |
|---|---|
| Series | GAFR400 filter & regulator |
| Port size | 3/8" (PT thread) |
| Filtering grade | 40 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 GAFR40010ASJNK
| 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. |
| (blank) | Filtering grade 40 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 GAFR40010ASJNK Is Used
Precision valve actuation
Feed a bank of precision pneumatic valves on a machining center. The 40 um element protects sensitive pilot stages, while the balanced regulator holds the set pressure steady as the supply fluctuates.
Machine tool header
Supply a short machine header with 3/8in drops to several actuators. The 100 cc bowl reduces how often the automatic drain cycles, and the 880 g body mounts firmly to a frame or panel.
Test bench air supply
Provide clean, regulated air to a test fixture that cycles rapidly. The self-locking knob resists drift from vibration, keeping the outlet pressure consistent throughout the test run.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40010ASJNK the Right Air-Prep Unit?
Choose the GAFR400 body when you need a 3/8in port and a flow envelope plotted to 7000 L/min at 0.7 MPa inlet; it sits between the GAFR300 (3500 L/min) and GAFR500 (8000 L/min). The PC bowl is the standard build, while the automatic drain means no manual draining is needed on wet or unattended lines. This model has no bracket (J) and no gauge (N), so plan for a panel mount and add a gauge with a 1/4in connection if you need to read pressure. The 40 um element suits general shop air, 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 GAFR40010ASJNK FAQ
The GAFR40010ASJNK is a filter & regulator with a 3/8in port, working pressure range of 0.15-0.9 MPa (20-130 psi), max pressure of 1.0 MPa (145 psi), and proof pressure of 1.5 MPa (215 psi). It operates from -5 to 70 C and must not freeze. The drain bowl holds 100 cc and the unit weighs 880 g. It has an automatic drain, a 40 um element, no gauge, and no bracket.
The N code after the port means no gauge is supplied, so you cannot read the set pressure without adding one; the 1/4in gauge connection is there for a later addition. The J code means the mounting bracket is omitted, which suits installations where the unit mounts directly to a panel or an existing bracket.
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