Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJN
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJN 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
- Drainautomatic
- Pressure gaugeNot fitted
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJN
The GAFR400C10ASJN is a filter and regulator combined into a single body, eliminating the need for separate GAF and GAR units. This 3/8in version handles 0.15-0.9 MPa (20-130 psi) with a 40 um element, and its metal bowl suits demanding environments.
A diversion structure spins incoming air to separate liquid water and solid particles into the 100 cc drain bowl, while the balanced regulator holds the set outlet pressure steady as supply varies. The automatic drain clears condensate without manual attention, and the 880 g mass signals a unit that needs proper panel mounting rather than tubing support.
Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJN Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJN |
|---|---|
| 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 | 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 GAFR400C10ASJN
| 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". |
| 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. |
| (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 GAFR400C10ASJN Is Used
Machine tool circuits
Feed a 3/8in line to a machining center's clamping fixtures, where the automatic drain keeps condensate from reaching precision valves and the steady regulated pressure holds cycle times consistent.
Assembly station headers
Supply a multi-operator assembly bench with filtered air at a set pressure, using the 100 cc bowl to handle moderate condensate loads and the metal construction for shop-floor durability.
Test rig air supply
Provide clean, regulated air to a pneumatic test fixture with multiple actuators, relying on the balanced regulator to maintain outlet pressure as the supply fluctuates during peak demand.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJN the Right Air-Prep Unit?
Choose the GAFR400 body when you need 3/8in ports and a 7000 L/min flow envelope at 0.7 MPa inlet, stepping up from the GAFR300's 3500 L/min curve for larger lines. The metal bowl (C) is a build choice with the same 1.0 MPa max and -5 to 70 C rating as PC or nylon versions, so confirm compatibility for aggressive surroundings. This model has an automatic drain (A), no bracket (J), and no gauge (N) - the 1/4in gauge connection is ready if you add one later. The standard type (S) covers 0.15-0.9 MPa, the 40 um element is the default, and PT threads carry an MPa/psi scale. For lines needing oil downstream, order the 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 GAFR400C10ASJN 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. The drain bowl holds 100 cc, the unit weighs 880 g, and the flow curve plots to 7000 L/min at 0.7 MPa inlet. It has a 3/8in port, 40 um element, automatic drain, and no gauge.
The N code means no gauge is supplied, leaving a 1/4in connection if you add one later. The J code omits the mounting bracket for installations using existing panel mounts or custom frames. Both options reduce cost when the standard accessories are not needed.
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