Airtac GAR Air Regulator GAR50020SK
The AirTAC Airtac GAR Air Regulator GAR50020SK is a genuine compressed-air pressure regulator. It sets and holds a steady downstream pressure across the 0.05 - 0.9 MPa range, with 3/4" ports and a built-in circular pressure gauge. It regulates pressure only — it does not filter the air or remove water.
- TypeAir regulator
- Port size3/4"
- Pressure range0.05 - 0.9 MPa
- RegulationStandard
- GaugeCircular
- Reflux valveYes (K)
- Max pressure1.0 MPa
- Weight580 g
About the Airtac GAR Air Regulator GAR50020SK
The GAR50020SK is an air pressure regulator that takes a higher, varying supply and holds a steady, lower downstream pressure you set with the knob and read on the circular gauge. It regulates pressure only; it does not filter, clean, dry, or remove water, oil, or particles from the air, and it has no drain bowl or filter element.
This 3/4in-port unit weighs 580 g, placing it in the mid-large size class for machine headers and multi-station lines. The pressed-in self-locking knob prevents the setpoint from drifting due to vibration or accidental knocks, so your downstream pressure stays where you set it.
Airtac GAR Air Regulator GAR50020SK Technical Specifications
| Model | Airtac GAR Air Regulator GAR50020SK |
|---|---|
| Series | GAR500 air regulator |
| Port size | 3/4" (PT thread) |
| Regulation type | Standard |
| Pressure range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure gauge | Circular, MPa / psi scale |
| 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 | 580 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 GAFR500 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 GAR50020SK
| GAR500 | GA500 series air regulator — sets the port range and weight class. |
|---|---|
| 20 | Port size 3/4". This body offers 20 = 3/4". |
| S | Standard regulation: 0.05 - 0.9 MPa (7 - 130 psi). This body offers S (standard) or L (lower pressure). |
| (blank) | Mounting bracket included. |
| (blank) | Circular pressure gauge fitted. |
| (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 GAFR500-20 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 | GAR500 · 3/4" · 580 g |
|---|---|
| One size down | GAR400 |
| One size up | GAR600 |
| Add filtration | GAFR500-20 (filter + regulator) |
Where the Airtac GAR Air Regulator GAR50020SK Is Used
Machine header pressure
Set a stable 0.6 MPa header for a multi-station assembly machine where several pneumatic actuators share one supply, preventing pressure drops from affecting downstream operations.
Precision fixture clamping
Hold a consistent 0.4 MPa for a precision clamping fixture in a CNC machining cell, where supply swings would otherwise alter clamping force and part tolerances.
Conveyor tension control
Regulate air to a conveyor belt tensioning cylinder at 0.3 MPa, keeping belt tension uniform despite fluctuations in the plant's main compressed air supply.
Is the Airtac GAR Air Regulator GAR50020SK the Right Regulator?
Choose the body and port to match your line size and air demand: GAR500 offers a 3/4in port and 580 g mass, stepping down from the GAR600 (1390 g, 1in) or up from the GAR400 (570 g, 1/2in). This standard S type regulates 0.05-0.9 MPa (7-130 psi), the full band for typical machinery; the L type only reaches 0.05-0.4 MPa and cannot hit a 0.5-0.6 MPa setpoint. The circular gauge is fitted and reads MPa/psi on the PT thread, and the mounting bracket is included. The K code means a reverse-flow (reflux) valve is attached. If your line also needs clean air, use a GAFR filter-regulator or a GAF filter upstream. The S type's adjustable band is about 2.4x the L type's (0.85 MPa vs 0.35 MPa).
Quick checklist
- ✓ Body size for your air demand (3/4" 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 GAFR500
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 580 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 GAFR500-20 filter-regulator as your air-prep needs grow.
Airtac GAR Air Regulator GAR50020SK FAQ
The GAR50020SK is a standard-type air pressure regulator with a 3/4in port and 580 g weight. It regulates air pressure from 0.05 to 0.9 MPa (7-130 psi). Maximum supply pressure is 1.0 MPa (145 psi), and proof pressure is 1.5 MPa (215 psi). Operating temperature range is -20 to 70 C. It has a circular gauge fitted and a mounting bracket included.
The K indicates a reverse-flow (reflux) valve is attached to the regulator. This is a factory-fitted option that changes the flow path through the unit. The GAR50020SK also includes a circular pressure gauge and a mounting bracket, and uses PT threads with an MPa/psi gauge scale.
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