Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJNK
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJNK 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 GAFR400C10ASJNK
The GAFR400C10ASJNK is a filter and regulator combined into a single body, eliminating the need for separate filter and regulator units. This 3/8in port model handles 0.15-0.9 MPa (20-130 psi) and uses a 40 um element to trap solids and separate liquid water via its diversion structure.
Its 100 cc metal condensate bowl and automatic drain make it suitable for wet or unattended lines. The unit weighs 880 g, and the balanced, self-locking regulator mechanism helps maintain a stable outlet pressure despite supply variations.
Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJNK Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJNK |
|---|---|
| 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 GAFR400C10ASJNK
| 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. |
| 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 GAFR400C10ASJNK Is Used
Machine tool circuits
Feed a precision machining fixture with clean, regulated air. The 40 um element protects sensitive valves, while the automatic drain keeps the 100 cc bowl from flooding during long shifts.
Assembly line stations
Supply a multi-station assembly bench where consistent pressure is needed for pneumatic hand tools. The metal bowl resists impacts in busy production areas, and the compact body saves rail space.
Test rigs and lab equipment
Provide stable air pressure to a test jig that cycles frequently. The balanced regulator holds the setpoint as line pressure fluctuates, and the automatic drain suits intermittent use where manual draining is impractical.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJNK the Right Air-Prep Unit?
Choose the GAFR400 body for medium-flow applications; its 7000 L/min flow envelope at 0.7 MPa inlet is double the GAFR300's 3500 L/min. The metal bowl (C) suits demanding environments, while the automatic drain (A) removes condensate without manual intervention. This model omits the mounting bracket (J) and gauge (N), so plan for panel mounting and add a gauge to the 1/4in connection if needed. The standard pressure type (S) covers 0.15-0.9 MPa, and the PT thread matches MPa/psi gauge scales. The reverse-flow (reflux) valve (K) is fitted as an ordering difference. If downstream lubrication is required, 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 GAFR400C10ASJNK FAQ
This filter & regulator has a 3/8in port and a working pressure range of 0.15-0.9 MPa (20-130 psi). Maximum pressure is 1.0 MPa (145 psi), and proof pressure is 1.5 MPa (215 psi). Operating temperature is -5 to 70 C. The metal condensate bowl holds 100 cc, and the unit weighs 880 g.
The 'N' code means no gauge is supplied, so the outlet pressure cannot be read directly; you can add one to the 1/4in gauge connection. The 'J' code omits the mounting bracket, which is useful for panel-mount installations or when using an existing bracket. Both options reduce the initial part count.
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