Airtac GAR Air Regulator GAR40010SJK
The AirTAC Airtac GAR Air Regulator GAR40010SJK is a genuine compressed-air pressure regulator. It sets and holds a steady downstream pressure across the 0.05 - 0.9 MPa range, with 3/8" ports and a built-in circular pressure gauge. It regulates pressure only — it does not filter the air or remove water.
- TypeAir regulator
- Port size3/8"
- Pressure range0.05 - 0.9 MPa
- RegulationStandard
- GaugeCircular
- Reflux valveYes (K)
- Max pressure1.0 MPa
- Weight570 g
About the Airtac GAR Air Regulator GAR40010SJK
The GAR40010SJK is an air pressure regulator that takes a higher, varying supply and holds a steady, lower downstream pressure set with its knob and read on the fitted circular gauge. It does not filter, clean, dry or remove water from the air, and has no drain bowl or filter element. This unit carries a 3/8in port and weighs 570 g, placing it in the mid-size GAR400 class.
The standard (S) type regulates from 0.05 to 0.9 MPa (7-130 psi), and its balanced adjustment mechanism holds the setpoint as supply pressure varies. The pressed-in self-locking knob prevents the setting from drifting due to vibration or accidental knocks. A reverse-flow (reflux) valve is attached, and the unit mounts on a panel without the optional bracket.
Airtac GAR Air Regulator GAR40010SJK Technical Specifications
| Model | Airtac GAR Air Regulator GAR40010SJK |
|---|---|
| Series | GAR400 air regulator |
| Port size | 3/8" (PT thread) |
| Regulation type | Standard |
| Pressure range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure gauge | Circular, MPa / psi scale |
| Bracket | Not included (J) |
| Reflux valve | Attached (K) |
| Fluid | Air |
|---|---|
| Max. pressure | 1.0 MPa (145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature range | -20 to +70 °C |
| Adjustment | Self-locking press-in knob |
| Mounting | Panel + optional bracket |
| Weight | 570 g |
Specifications follow the official AirTAC GAR catalogue (pages 228-229). This is a regulator only — it sets and holds a downstream pressure but does not filter the air or separate water. To clean the air as well, use the matching GAFR400 filter-regulator or add a GAF filter upstream. Never run above the 1.5 MPa (215 psi) proof pressure.
Model Code: Airtac GAR Air Regulator GAR40010SJK
| GAR400 | GA400 series air regulator — sets the port range and weight class. |
|---|---|
| 10 | Port size 3/8". This body offers 10 = 3/8", 15 = 1/2". |
| S | Standard regulation: 0.05 - 0.9 MPa (7 - 130 psi). This body offers S (standard) or L (lower pressure). |
| J | No bracket (J) — panel mount or existing bracket. |
| (blank) | Circular pressure gauge fitted. |
| (blank) | PT thread; gauge scale MPa / psi. |
| K | Reverse-flow (reflux) valve attached (K). |
A GAR regulates pressure but does not filter — there is no bowl, element or drain code. Need to clean the air too? The matching GAFR400-10 is the same regulator with a built-in filter.
Size Class
- GAR2001/8"-1/4" · 170 g
- GAR3001/4"-1/2" · 300 g
- GAR4003/8"-1/2" · 570 g
- GAR5003/4" · 580 g
- GAR6003/4"-1" · 1390 g
All bodies share the same 0.05-0.9 MPa (S) regulated range, 1.0 MPa max and 1.5 MPa proof; the body number sets the port size and the flow the regulator can pass. Bigger ports feed higher air demand. The catalogue plots a flow curve at 0.7 MPa inlet but prints no numeric envelope, so size by port and weight and confirm the curve for a real duty point.
| This model | GAR400 · 3/8" · 570 g |
|---|---|
| One size down | GAR300 |
| One size up | GAR500 |
| Add filtration | GAFR400-10 (filter + regulator) |
Where the Airtac GAR Air Regulator GAR40010SJK Is Used
CNC fixture pressure
Set a stable 0.4 MPa for pneumatic clamps on a CNC workholding fixture, keeping parts secure despite supply swings from other machines.
Spray gun supply
Regulate a consistent 0.3 MPa to an automated spray gun in a finishing line, preventing finish defects from pressure variation.
Test bench air
Provide a controlled 0.6 MPa to a leak-testing station, ensuring repeatable results across batches of components.
Is the Airtac GAR Air Regulator GAR40010SJK the Right Regulator?
Choose the GAR40010SJK for a 3/8in line needing a standard 0.05-0.9 MPa (7-130 psi) regulated band. The J code omits the mounting bracket, so plan for panel mounting or an existing bracket. The fitted circular gauge reads MPa/psi on the PT thread standard. If you need clean air, use a separate GAF filter upstream or the matching GAFR400-10 filter-regulator, as this GAR only regulates pressure. The S type's adjustable band is about 2.4x the L type's (0.85 MPa vs 0.35 MPa).
Quick checklist
- ✓ Body size for your air demand (3/8" here)
- ✓ Type S (0.05-0.9) or L (0.05-0.4 MPa)
- ✓ Gauge fitted, or no gauge (N)
- ✓ Thread PT / G / NPT (sets gauge scale)
- ✓ Bracket kept or removed (J)
- ✓ Need filtration too? Use GAFR400
Installation & Setting Notes
- check Install with the airflow arrow: IN to OUT, knob accessible.
- check Put a filter (GAF or a GAFR) UPSTREAM — a regulator does not clean the air.
- check Set pressure by turning the knob up to the target, then press it in to lock.
- check Keep supply at or below the 1.0 MPa (145 psi) max working pressure.
- check Never exceed the 1.5 MPa (215 psi) proof pressure.
- check Support the 570 g unit on its panel or bracket, not on the tubing.
This is a regulator only — it sets and holds pressure but does not filter or lubricate. Add a GAF filter, a GAL lubricator, or step up to the GAFR400-10 filter-regulator as your air-prep needs grow.
Airtac GAR Air Regulator GAR40010SJK FAQ
This standard-type regulator sets 0.05-0.9 MPa (7-130 psi). Maximum supply pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), and temperature range is -20 to 70 C. The unit weighs 570 g with a 3/8in port. It has a fitted circular gauge, no bracket, and includes a reflux valve.
The K indicates a reverse-flow (reflux) valve is attached to the regulator. This option is named in the code but its specific function is not detailed in our catalogue data. The unit remains a regulator only and does not filter the air.
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