Airtac GAR Air Regulator GAR40015SJN
The AirTAC Airtac GAR Air Regulator GAR40015SJN 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
- Weight570 g
About the Airtac GAR Air Regulator GAR40015SJN
The GAR40015SJN 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 or clean the air and has no drain bowl or filter element. This model uses a 1/2in port and weighs 570 g, placing it in the mid-size class for shop air lines.
The standard (S) type regulates from 0.05-0.9 MPa (7-130 psi), with a maximum supply of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It has no gauge fitted, so you read pressure on the line's own panel gauge. The pressed-in self-locking knob prevents the setpoint from drifting due to vibration or accidental contact.
Airtac GAR Air Regulator GAR40015SJN Technical Specifications
| Model | Airtac GAR Air Regulator GAR40015SJN |
|---|---|
| Series | GAR400 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 | 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 GAR40015SJN
| GAR400 | GA400 series air regulator — sets the port range and weight class. |
|---|---|
| 15 | Port size 1/2". 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. |
| (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 GAFR400-15 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 | GAR400 · 1/2" · 570 g |
|---|---|
| One size down | GAR300 |
| One size up | GAR500 |
| Add filtration | GAFR400-15 (filter + regulator) |
Where the Airtac GAR Air Regulator GAR40015SJN Is Used
Machine Tool Pressure Setting
Set a stable 0.4 MPa for a CNC coolant system or a pneumatic clamp on a machining center. The 1/2in port handles the flow demand of a single machine tool station.
Assembly Line Workstation
Regulate air for a multi-spindle screwdriver or a parts feeder on an assembly line. The 570 g body mounts securely on a panel near the workstation, keeping the setpoint stable.
Test Bench Air Supply
Provide a controlled 0.6 MPa for leak-testing fixtures or calibration equipment. The balanced design holds the set pressure as the shop supply fluctuates during peak usage.
Is the Airtac GAR Air Regulator GAR40015SJN the Right Regulator?
Choose the GAR400 for 3/8in or 1/2in lines where a 570 g body gives a solid mid-range presence. The S type covers the full 0.05-0.9 MPa band, suitable for most industrial actuators and tools. This unit has no gauge (N) and no bracket (J), so plan for panel mounting and an external pressure readout. The PT thread standard uses MPa/psi gauge scales, matching common regional practice. If the air needs cleaning, use a GAFR400-15 or a separate GAF filter upstream, since this regulator does not filter. The S type's adjustable span is about 2.4x wider than the L type's, giving you more setpoint flexibility across different applications.
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 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 GAFR400-15 filter-regulator as your air-prep needs grow.
Airtac GAR Air Regulator GAR40015SJN FAQ
The GAR40015SJN is a standard-type air pressure regulator with a 1/2in port and a weight of 570 g. It regulates from 0.05-0.9 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. This is suitable when your system already has a panel gauge or a digital sensor on the downstream line. You read the set pressure from that external instrument instead of a gauge on the regulator body.
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