Airtac GAR Air Regulator GAR40015SN
The AirTAC Airtac GAR Air Regulator GAR40015SN 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 GAR40015SN
The GAR40015SN is a regulator-only unit that takes a variable supply and holds a steady downstream pressure you set with its knob. It does not filter or dry the air, so install a GAF or GAFR upstream if the line needs cleaning. This model has a 1/2" port, weighs 570 g, and regulates the standard 0.05-0.9 MPa (7-130 psi) band.
Its pressed-in self-locking knob resists drift from vibration, so a setpoint stays put on a machine that shakes. The balanced adjustment mechanism also holds the setting as supply pressure varies. With no gauge fitted, you read pressure on the line's own panel gauge instead.
Airtac GAR Air Regulator GAR40015SN Technical Specifications
| Model | Airtac GAR Air Regulator GAR40015SN |
|---|---|
| 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 | Included |
| 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 GAR40015SN
| 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). |
| (blank) | Mounting bracket included. |
| 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 GAR40015SN Is Used
CNC coolant or air-cylinder setpoint
Set a stable 0.4-0.6 MPa for a machining center's air cylinders or coolant valves, where supply swings would otherwise shift the force.
Pneumatic press or forming station
Hold a consistent pressure for a small stamping or forming press, keeping cycle force repeatable across a shift.
Assembly line pneumatic tools
Feed a single nutrunner or screwdriver at a fixed pressure, preventing over-torque when the plant's main line fluctuates.
Is the Airtac GAR Air Regulator GAR40015SN the Right Regulator?
Choose the GAR400 body for a mid-size line: its 1/2" port feeds a higher air demand than the GAR300's 1/4" or 3/8" options, and its 570 g mass needs a proper panel or bracket mount rather than tubing support. The standard S type covers 0.05-0.9 MPa (7-130 psi), which suits most machinery; the L type only reaches 0.4 MPa, so it is wrong for a 0.5-0.6 MPa setpoint. This unit has no gauge (N), so rely on a panel gauge, and it uses PT threads with an MPa/psi scale. The mounting bracket is included. If the air also needs cleaning, step up to the matching GAFR400-15 filter-regulator. 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 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 GAR40015SN FAQ
It regulates air from 0.05 to 0.9 MPa (7-130 psi), with a max supply of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It operates from -20 to 70 C and weighs 570 g. The port is 1/2" and it has no gauge.
The N in the code means no gauge is fitted. You read the downstream pressure on the line's own panel gauge instead, which is useful if you already have one installed or want to save panel space. The PT thread uses an MPa/psi scale on any gauge you connect.
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