Airtac GAR Air Regulator GAR40010SJ
The AirTAC Airtac GAR Air Regulator GAR40010SJ 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 valveNo
- Max pressure1.0 MPa
- Weight570 g
About the Airtac GAR Air Regulator GAR40010SJ
The GAR40010SJ is an air pressure regulator that takes a variable supply and holds a steady downstream pressure you set with its knob and read on the circular gauge. It regulates pressure only; it does not filter the air or remove water, so fit a GAF or GAFR upstream if the line needs cleaning.
This 3/8in unit weighs 570 g and uses the standard S range of 0.05-0.9 MPa (7-130 psi). Its pressed-in self-locking knob prevents the setpoint from drifting when the machine vibrates, keeping the downstream pressure stable during a shift.
Airtac GAR Air Regulator GAR40010SJ Technical Specifications
| Model | Airtac GAR Air Regulator GAR40010SJ |
|---|---|
| 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 | None |
| 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 GAR40010SJ
| 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. |
| (blank) | No reverse-flow (reflux) valve. |
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 GAR40010SJ Is Used
Machine tool pressure set
Set a steady 0.4 MPa for a milling machine's work-holding clamp, where supply swings would otherwise change the clamping force.
Pneumatic actuator feed
Hold a consistent 0.6 MPa for a bank of small cylinders on an assembly station, protecting them from upstream pressure spikes.
Test rig air supply
Regulate a bench tester's air to a repeatable 0.3 MPa so each part sees the same pressure during a leak check.
Is the Airtac GAR Air Regulator GAR40010SJ the Right Regulator?
Choose the body and port by the air demand: a GAR400 at 570 g with 3/8in ports sits above the 300 g GAR300 and below the 1390 g GAR600, so it suits medium-flow lines. The S type regulates 0.05-0.9 MPa (7-130 psi) for standard machinery; pick the L type only for low-pressure work up to 0.4 MPa. This model keeps its circular gauge (MPa/psi scale) and uses PT threads, but the J code omits the mounting bracket, so plan a panel mount or use an existing bracket. If the air needs cleaning, step up to the matching GAFR400-10 filter-regulator. The S type's adjustable band of 0.85 MPa is about 2.4x the L type's 0.35 MPa span.
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 GAR40010SJ FAQ
The GAR40010SJ regulates air from 0.05 to 0.9 MPa (7-130 psi). Maximum supply pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), and the temperature range is -20 to 70 C. The unit weighs 570 g and has 3/8in ports.
The J in the code means the bracket is omitted. This suits installations where the regulator mounts directly to a panel or onto an existing bracket, saving space and avoiding an unused part. The regulator still has its circular gauge and PT threads for the connection.
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