Airtac GAFR Adjustable Filter Regulator GAFR40010SJNK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40010SJNK 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
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40010SJNK
The GAFR40010SJNK is a genuine AirTAC filter & regulator that combines both functions in a single body, eliminating the need for separate GAF and GAR units. This 3/8in model operates from 0.15 to 0.9 MPa (20-130 psi) and uses a standard 40 um element to trap solid particles.
Its diversion structure spins incoming air to separate liquid water and solids into the 100 cc drain bowl, while the balanced, self-locking regulator maintains a steady outlet pressure. This 880 g unit comes without a gauge or mounting bracket, and includes a reverse-flow valve as an ordering difference.
Airtac GAFR Adjustable Filter Regulator GAFR40010SJNK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40010SJNK |
|---|---|
| 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 | Semi-auto drain + manual 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 GAFR40010SJNK
| 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". |
| (blank) | Drain: Semi-auto drain + manual 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 GAFR40010SJNK Is Used
Precision machining centers
Feed a 3/8in line to a CNC spindle or tool changer where clean, regulated air at 0.15-0.9 MPa keeps actuators consistent. The 100 cc bowl handles condensate from high-cycling equipment.
Assembly line automation
Supply a multi-station assembly fixture with stable pressure for pneumatic clamps and sensors. The 7000 L/min flow envelope at 0.7 MPa inlet supports several small actuators on one header.
Packaging machinery
Run a carton erector or strapping machine with filtered air to protect precision valves. The 880 g body needs a proper frame mount, not tubing support, for reliable operation.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40010SJNK the Right Air-Prep Unit?
Choose the GAFR400 body when you need 3/8in ports and a 100 cc condensate bowl, stepping up from the GAFR300's 60 cc bowl for longer intervals between drains. The PC bowl suits general-purpose use, while the semi-auto+manual drain gives you both automatic and manual draining options. This model omits the bracket (J) for panel mounting and has no gauge (N), so plan to add one via the 1/4in gauge connection if you need to read set pressure. The 40 um element handles standard filtration, and the PT thread matches MPa/psi gauge scales. If you need oil 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 GAFR40010SJNK FAQ
This filter & regulator operates from 0.15 to 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, drain bowl capacity is 100 cc, and the unit weighs 880 g. It has a 3/8in port, 40 um element, and PT thread.
The N code means no gauge is supplied, so you must add one through the 1/4in gauge connection to read outlet pressure. The J code omits the mounting bracket for installations using existing panels or frames. Both options reduce cost when you already have these components.
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Covers non-human-caused product damage.
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