Airtac GAFR Adjustable Filter Regulator GAFR400C10SN
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C10SN 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 materialMetal
- Drainsemi-auto + manual
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR400C10SN
The GAFR400C10SN is a filter and regulator combined in a single metal-bodied unit. It spins incoming air to separate liquid water and trap solid particles, then a balanced regulator holds the outlet steady as supply pressure varies. This 3/8in model works from 0.15 to 0.9 MPa (20-130 psi) with a 40 um element.
Its 100 cc condensate bowl and 880 g mass place it in the mid-size class, a step up from the GAFR300's 60 cc bowl. The pressed-in self-locking knob resists set-pressure drift from vibration, so the regulated output stays put on machinery that shakes.
Airtac GAFR Adjustable Filter Regulator GAFR400C10SN Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C10SN |
|---|---|
| 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 | Metal |
| 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 GAFR400C10SN
| 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). |
| 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. |
| (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 GAFC400-10 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 GAFR400C10SN Is Used
Machine tool air prep
Feed a CNC spindle or work-holding fixture with clean, regulated air. The metal bowl shrugs off shop-floor knocks, and the 100 cc bowl handles a shift of condensate before needing a drain.
Assembly line stations
Mount this 3/8in unit at a robotic screwdriver or press station. The self-locking knob keeps the set pressure stable despite nearby vibration, so cycle times stay consistent.
Test bench supply
Use it to feed a pneumatic test jig that needs a steady 0.4 MPa. The balanced regulator holds the outlet as the shop supply fluctuates, and the gauge port lets you add a 1/4in gauge for verification.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C10SN the Right Air-Prep Unit?
Choose the GAFR400 body when 3/8in ports and a 100 cc drain bowl match your line; it is rated for flow plotted to 7000 L/min at 0.7 MPa inlet, about double the GAFR300's envelope. The metal bowl suits demanding environments, but confirm compatibility for aggressive surroundings since no chemical data is printed. This unit ships with both semi-auto and manual drains, the mounting bracket, and a 40 um element; the no-gauge option means the 1/4in gauge connection is ready for a later add-on. If the line needs 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 GAFR400C10SN FAQ
Working pressure is 0.15-0.9 MPa (20-130 psi), max pressure 1.0 MPa (145 psi), proof pressure 1.5 MPa (215 psi), temperature range -5 to 70 C. It has a 100 cc drain bowl, weighs 880 g, and uses a 40 um element with a 3/8in port.
The N code means no gauge is supplied, saving cost when you have a panel-mounted gauge or want to add one later. The gauge connection on the GAFR400 body is 1/4in, so any standard 1/4in gauge can be fitted when needed.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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