Airtac GAFR Adjustable Filter Regulator GAFR40010SNK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40010SNK 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 GAFR40010SNK
The GAFR40010SNK is a filter and regulator combined into a single body, saving rail space and reducing potential leak points compared to separate units. It handles 3/8in ports and delivers a regulated output from 0.15 to 0.9 MPa (20-130 psi) with a 40 um element.
This 880 g unit features a diversion structure that spins incoming air to separate liquid water and solid particles into the 100 cc condensate bowl. The pressed-in self-locking knob resists set-pressure drift from vibration, and the balanced mechanism holds the outlet steady as supply pressure varies.
Airtac GAFR Adjustable Filter Regulator GAFR40010SNK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40010SNK |
|---|---|
| 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 | Included |
| 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 GAFR40010SNK
| 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). |
| (blank) | Mounting bracket included. |
| 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 GAFR40010SNK Is Used
Precision Fixturing
Feed a pneumatic clamp or fixture on a CNC machine with stable, filtered air. The 40 um element protects sensitive valves, while the self-locking regulator holds the set pressure during machine vibration.
Conveyor Transfer Stations
Power a divert gate or stopper cylinder on a packaging line. The 100 cc bowl handles condensate from a busy line, and the included bracket simplifies mounting near the conveyor frame.
Test Bench Air Supply
Provide a clean, regulated air source for a manual test station or assembly bench. The 3/8in port suits short runs to single actuators, and the gauge connection is ready for a 1/4in gauge if you add one later.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40010SNK the Right Air-Prep Unit?
Choose the GAFR400 body for medium-flow applications; its 7000 L/min plotted flow envelope at 0.7 MPa inlet is double the GAFR300's 3500 L/min, making it a solid step up for multi-actuator circuits. The PC bowl is the standard build, and this model ships with the mounting bracket included, a 40 um element, and PT threads. The semi-auto plus manual drain requires periodic attention, while the K code adds the reverse-flow (reflux) valve as an ordering difference. If your line needs lubrication downstream, order the matching GAFC400-10 combination instead. Note that 1.0 MPa max supply 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 (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 GAFR40010SNK FAQ
The GAFR40010SNK is a filter & regulator with a 3/8in port, a working 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). It operates from -5 to 70 C, has a 100 cc drain bowl, and weighs 880 g. The unit uses a 40 um element and has a semi-auto plus manual drain.
The K code indicates that a reverse-flow (reflux) valve is fitted to this unit. It is an ordering difference from models without the K code. The specific function of the valve is detailed in the catalogue's separate section, so consult that page for operational details.
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