Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJ
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJ 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 gaugeCircular, MPa / psi
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJ
The GAFR400C10ASJ is a filter and regulator combined into a single body, so the incoming air is cleaned and then set to a steady outlet pressure without needing separate components. This 3/8in model works across 0.15-0.9 MPa (20-130 psi) and uses a 40 um element to trap solid particles.
Its metal bowl holds 100 cc of condensate, and the automatic drain clears liquid without manual attention. The balanced regulator holds the set pressure as supply varies, and the pressed-in self-locking knob resists drift from vibration, keeping the outlet stable.
Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJ Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJ |
|---|---|
| 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. The fitted circular gauge reads in MPa / psi, set by the PT thread code. This unit filters and regulates only; it does not add lubrication.
Model Code: Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJ
| 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. |
| (blank) | Circular pressure gauge fitted. |
| (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 GAFR400C10ASJ Is Used
Machine tool air prep
Feed a 3/8in line to a CNC spindle or workholding fixture, where the automatic drain keeps condensate out of precision valves and the regulated pressure holds steady.
Assembly station supply
Supply a multi-operator assembly bench with filtered, regulated air for pneumatic screwdrivers and presses, relying on the 100 cc bowl to reduce drain checks.
Test rig instrumentation
Use on a test bench with sensitive gauges or flow meters, where the 40 um element and stable outlet pressure protect downstream instruments from spikes.
Is the Airtac GAFR Adjustable Filter Regulator GAFR400C10ASJ the Right Air-Prep Unit?
Choose the body and port first: the GAFR400 sits above the GAFR300 (3500 L/min envelope) and below the GAFR500 (8000 L/min envelope), with its own flow curve plotted to 7000 L/min at 0.7 MPa inlet. The metal bowl suits demanding environments, while the automatic drain (A) handles wet or unattended lines, and the 40 um element is the standard grade. This model omits the mounting bracket (J), so plan for a panel mount or existing support, and the fitted circular gauge reads MPa/psi on the PT thread. If oil is needed downstream, order the matching GAFC400-10 combination instead. With a 1.0 MPa max supply, this regulator leaves about 0.1 MPa above the 0.9 MPa top of its 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 GAFR400C10ASJ FAQ
Working pressure range is 0.15-0.9 MPa (20-130 psi), with a maximum supply of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). Operating temperature is -5 to 70 C. The metal drain bowl holds 100 cc, and the unit weighs 880 g with a 3/8in port.
The J code means the bracket is omitted, so you must mount the unit on a panel or an existing frame rather than using the included bracket. This suits installations where space is tight or where a custom mounting solution is already in place.
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Covers non-human-caused product damage.
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