Airtac GAR Air Regulator GAR30015SJN
The AirTAC Airtac GAR Air Regulator GAR30015SJN is a genuine compressed-air pressure regulator. It sets and holds a steady downstream pressure across the 0.05 - 0.9 MPa range, with 1/2" 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 size1/2"
- Pressure range0.05 - 0.9 MPa
- RegulationStandard
- GaugeNone (N)
- Reflux valveNo
- Max pressure1.0 MPa
- Weight300 g
About the Airtac GAR Air Regulator GAR30015SJN
The AirTAC GAR30015SJN is a regulator-only unit that takes a higher supply pressure and holds a steady, lower downstream pressure you set with its knob. It does not filter, clean, or dry the air, and it has no drain bowl or filter element. This model has a 1/2in port and weighs 300 g, placing it in the mid-size GAR300 class.
Its pressed-in self-locking knob prevents the set pressure from drifting due to vibration or accidental knocks, so a calibrated setting stays put during a shift. The balanced adjustment mechanism holds the setpoint as supply pressure varies, though the catalogue gives no accuracy figure. With no gauge fitted, you read the line pressure on the system's own panel gauge.
Airtac GAR Air Regulator GAR30015SJN Technical Specifications
| Model | Airtac GAR Air Regulator GAR30015SJN |
|---|---|
| Series | GAR300 air regulator |
| Port size | 1/2" (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 | 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 | 300 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 GAFR300 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 GAR30015SJN
| GAR300 | GA300 series air regulator — sets the port range and weight class. |
|---|---|
| 15 | Port size 1/2". This body offers 08 = 1/4", 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. |
| (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 GAFR300-15 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 | GAR300 · 1/2" · 300 g |
|---|---|
| One size down | GAR200 |
| One size up | GAR400 |
| Add filtration | GAFR300-15 (filter + regulator) |
Where the Airtac GAR Air Regulator GAR30015SJN Is Used
Machine tool air supply
Set a stable 0.4 MPa for a lathe's pneumatic chuck or a milling machine's work-holding clamp. The 1/2in port feeds the demand without a pressure drop, and the self-locking knob keeps the setting through vibration.
Conveyor tension control
Regulate the air pressure to a conveyor belt's tensioning cylinder, holding a consistent force as the line starts and stops. The balanced design compensates for supply swings, keeping the belt running smoothly.
Test bench pressure source
Provide a repeatable 0.3 MPa to a pneumatic test fixture on an R&D bench. The 300 g body mounts to a panel, and the no-gauge design lets you use the bench's calibrated master gauge for readings.
Is the Airtac GAR Air Regulator GAR30015SJN the Right Regulator?
Choose the GAR300 body when you need a 1/2in port and a 300 g unit that suits a moderate air demand, stepping down from the 570 g GAR400 or up from the 170 g GAR200. This is the standard S type, regulating 0.05-0.9 MPa (7-130 psi), which covers most shop air; the L type only reaches 0.05-0.4 MPa and cannot hit a 0.5 MPa setpoint. The J code omits the mounting bracket, so plan for a panel mount or an existing bracket, and the N code means no gauge, so rely on the line's own pressure gauge. The PT thread reads MPa/psi on the gauge scale, matching common metric installations. If the air also needs cleaning, use a GAFR300-15 or a separate GAF filter upstream, since this regulator does not filter. The S type's 0.85 MPa adjustable span is about 2.4x the L type's 0.35 MPa band.
Quick checklist
- ✓ Body size for your air demand (1/2" 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 GAFR300
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 300 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 GAFR300-15 filter-regulator as your air-prep needs grow.
Airtac GAR Air Regulator GAR30015SJN FAQ
The GAR30015SJN is a standard-type air pressure regulator with a 1/2in port and a weight of 300 g. It regulates from 0.05 to 0.9 MPa (7-130 psi), with a maximum supply pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). The operating temperature range is -20 to 70 C. It has no gauge and no mounting bracket.
The N in the code means no pressure gauge is fitted, so you read the downstream pressure on the line's own panel gauge or a separate gauge you install. The J means the mounting bracket is omitted, so you use a panel mount or an existing bracket. This configuration suits installations where the regulator is integrated into a machine's control panel with its own instrumentation.
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