Airtac GAR Air Regulator GAR40015SNK
The AirTAC Airtac GAR Air Regulator GAR40015SNK 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 valveYes (K)
- Max pressure1.0 MPa
- Weight570 g
About the Airtac GAR Air Regulator GAR40015SNK
The GAR40015SNK is an air pressure regulator that takes a higher supply pressure and holds a steady, lower downstream pressure you set with its knob. It does not filter or clean the air, and it has no drain bowl or filter element. This unit carries a 1/2in port and weighs 570 g, placing it in the mid-size GAR400 class for shop and machine lines.
Its pressed-in self-locking knob stops the set pressure from drifting when the machine vibrates, so a calibrated setting stays put through a shift. The balanced adjustment mechanism also holds the outlet steady as the incoming supply pressure fluctuates. With no gauge fitted, you read the downstream pressure on the line's own panel gauge instead.
Airtac GAR Air Regulator GAR40015SNK Technical Specifications
| Model | Airtac GAR Air Regulator GAR40015SNK |
|---|---|
| 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 | 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 GAR40015SNK
| 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. |
| 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 GAFR400-15 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 GAR40015SNK Is Used
Machine tool air supply
Set a steady 0.4 MPa for a CNC machine's pneumatic clamp circuit, where the 1/2in port feeds multiple actuators and the self-locking knob holds the setting through cutting vibrations.
Assembly line workstations
Regulate air for a bench-mounted press or a parts feeder on an assembly line, using the included bracket to fix the 570 g body to a panel and the no-gauge design to rely on a line gauge.
Paint spray booth
Hold a consistent 0.3 MPa for a spray gun in a paint booth, where the balanced design keeps the outlet stable as the compressor cycles and the reflux valve is fitted as specified.
Is the Airtac GAR Air Regulator GAR40015SNK the Right Regulator?
Choose the GAR400 body when your line needs a 1/2in port and the 570 g mass suits a fixed panel or bracket mount rather than tubing support. The standard S type regulates from 0.05 to 0.9 MPa (7-130 psi), which covers most machine air; if you only need low pressures up to 0.4 MPa, the L type gives finer resolution in that band but cannot reach a 0.5 MPa setpoint. This model has no gauge, so rely on an external pressure gauge in the line, and it includes the mounting bracket for panel installation. The PT thread reads MPa/psi on any fitted gauge, and the K option attaches a reverse-flow (reflux) valve, named here without describing its function. If the air also needs cleaning, use a GAFR400-15 or a separate GAF filter upstream, since this regulator does not filter. The S type's adjustable band is about 2.4x the L type's span (0.85 MPa vs 0.35 MPa), giving you a wider range of setpoints for general machinery.
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 GAR40015SNK FAQ
The GAR40015SNK is a standard-type air pressure regulator with a 1/2in port and a weight of 570 g. It regulates from 0.05 to 0.9 MPa (7-130 psi), with a max supply pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). The temperature range is -20 to 70 C. It has no gauge, includes a mounting bracket, uses PT threads, and has a reflux valve fitted.
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 an external gauge. The K option means a reverse-flow (reflux) valve is attached to the unit; this feature is named here but its function is not described in our data. The regulator itself only sets and holds pressure, and it does not filter the air.
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