Airtac GAFR Adjustable Filter Regulator GAFR40010SJ
The AirTAC Airtac GAFR Adjustable Filter Regulator GAFR40010SJ 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 gaugeCircular, MPa / psi
- Weight880 g
About the Airtac GAFR Adjustable Filter Regulator GAFR40010SJ
The GAFR40010SJ is a filter and regulator combined into a single body, replacing the need for separate GAF and GAR units. It cleans incoming air through a diversion structure that spins out liquid water and solid particles, then delivers a steady outlet pressure via a balanced, self-locking regulator knob.
This model uses a 3/8in port, a 40 um element, and a PC bowl. It operates from 0.15-0.9 MPa (20-130 psi) with a maximum supply of 1.0 MPa (145 psi). The semi-auto and manual drains are both fitted, and the mounting bracket is omitted for panel-mount installations.
Airtac GAFR Adjustable Filter Regulator GAFR40010SJ Technical Specifications
| Model | Airtac GAFR Adjustable Filter Regulator GAFR40010SJ |
|---|---|
| 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 | 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 GAFR40010SJ
| 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). |
| 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 GAFR40010SJ Is Used
Machine tool air supply
Feed a 3/8in line to a CNC machine's pneumatic clamping system. The 40 um element protects precision valves, while the regulator holds a stable pressure for consistent clamping force.
Assembly station air prep
Mount this unit on a panel at a manual assembly station. The semi-auto drain lets operators empty the 100 cc bowl during shift changes, and the gauge gives a clear readout of set pressure.
Pneumatic tool supply
Supply a 3/8in line to air tools like grinders or screwdrivers. The filter removes water and particles from the air, and the regulator keeps the tool running at its rated pressure for consistent performance.
Is the Airtac GAFR Adjustable Filter Regulator GAFR40010SJ the Right Air-Prep Unit?
Choose the GAFR400 body for medium-flow lines that need a 3/8in connection and a 100 cc drain bowl. The 880 g mass means it needs a solid panel or frame mount, not support from the tubing. This model has no bracket (J), so plan for a direct panel mount or an existing bracket. The PC bowl is the standard build; select a metal or nylon bowl if your environment demands it, but confirm compatibility for aggressive surroundings. The semi-auto and manual drains are both fitted here, making it suitable for attended lines; switch to the A code for an automatic drain on wet or unattended systems. The 40 um element handles general shop air; upgrade to the W code for 5 um filtration if you feed precision valves or instruments. The fitted circular gauge reads in MPa/psi, matching the PT thread. If your line needs lubrication 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, so plan a supply near 1.0 MPa if you need 0.9 MPa outlet.
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 GAFR40010SJ FAQ
The GAFR40010SJ is a filter and regulator with a 3/8in port, 100 cc drain bowl, and 880 g weight. Pressure range is 0.15-0.9 MPa (20-130 psi), max pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), and temperature range is -5 to 70 C. It has a 40 um element, semi-auto and manual drains, and a fitted gauge.
The J code in GAFR40010SJ means the mounting bracket is omitted. This is for installations where the unit will be panel-mounted or attached to an existing bracket. If you need the standard bracket, order the model without the J code.
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