Airtac GAR Air Regulator GAR40010SJNK
The AirTAC Airtac GAR Air Regulator GAR40010SJNK 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 no-gauge (N) port for a panel 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
- GaugeNone (N)
- Reflux valveYes (K)
- Max pressure1.0 MPa
- Weight570 g
About the Airtac GAR Air Regulator GAR40010SJNK
The GAR40010SJNK is a regulator-only unit that takes a higher supply pressure and holds a steady, lower downstream pressure you set with the knob. It does not filter the air or remove water, so fit a GAF or GAFR upstream if the line needs cleaning. This model has a 3/8" port, weighs 570 g, and regulates the standard 0.05-0.9 MPa (7-130 psi) band.
The pressed-in self-locking knob stops the set pressure drifting when the machine vibrates, so a calibrated setting stays put during a shift. The balanced adjustment mechanism also holds the setpoint as the supply pressure fluctuates, which protects downstream components from swings. With no gauge fitted, you read the pressure on the line's own panel gauge instead.
Airtac GAR Air Regulator GAR40010SJNK Technical Specifications
| Model | Airtac GAR Air Regulator GAR40010SJNK |
|---|---|
| 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 | None (N) — MPa / psi port |
| 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 GAR40010SJNK
| 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. |
| N | No gauge (N) — for a line with a panel gauge already. |
| (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 GAR40010SJNK Is Used
Medium clamp force control
Set a steady 0.4 MPa to a bank of pneumatic clamps on a medium assembly fixture, holding force despite upstream supply swings from other equipment.
Pneumatic tool pressure
Regulate supply to a nutrunner or drill on a production line, keeping the tool's operating pressure within its rated band for consistent fastening.
Test rig air supply
Provide a stable, adjustable pressure to a test fixture that checks valve actuation, with the line's own panel gauge monitoring the setpoint.
Is the Airtac GAR Air Regulator GAR40010SJNK the Right Regulator?
Choose the body and port by the air demand: a GAR400 at 570 g with a 3/8" port suits medium flows, while a GAR300 at 300 g handles lighter lines and a GAR500 at 580 g steps up to a 3/4" port. The S type regulates 0.05-0.9 MPa (7-130 psi) for standard machinery, whereas the L type only reaches 0.05-0.4 MPa (7-58 psi) and cannot hit a 0.5-0.6 MPa setpoint. This unit has no gauge (N) and no bracket (J), so mount it on a panel or an existing bracket, and read pressure on the line's own gauge. The PT thread gives an MPa/psi gauge scale, and the K option attaches a reverse-flow (reflux) valve, named here without further detail. The S type's adjustable band is about 2.4x the L type's span (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 GAR40010SJNK FAQ
The GAR40010SJNK 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 operating temperature range is -20 to 70 C. The unit weighs 570 g and has a 3/8" port. It has no gauge and no bracket, and includes a reflux valve.
The N in the code means no pressure gauge is fitted, so you read the downstream pressure on the line's own panel gauge. The J means no mounting bracket is included, so you mount it on a panel or use an existing bracket. This saves cost when the line already has these components.
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