Airtac GAR Air Regulator GAR50020SNK
The AirTAC Airtac GAR Air Regulator GAR50020SNK 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 no-gauge (N) port for a panel 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
- GaugeNone (N)
- Reflux valveYes (K)
- Max pressure1.0 MPa
- Weight580 g
About the Airtac GAR Air Regulator GAR50020SNK
The AirTAC GAR50020SNK 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, clean, or dry the air, and it has no drain bowl or filter element. This model uses a 3/4in port and weighs 580 g, placing it in the mid-large size class for machine-level air lines.
Its pressed-in self-locking knob resists vibration drift, so a setpoint stays put on equipment 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 GAR50020SNK Technical Specifications
| Model | Airtac GAR Air Regulator GAR50020SNK |
|---|---|
| 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 | 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 | 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 GAR50020SNK
| 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. |
| 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 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 GAR50020SNK Is Used
Machine header pressure
Set a stable 0.4 MPa for a multi-station assembly machine's pneumatic header, where supply swings would otherwise shift clamp force.
Calibrated test fixture
Hold a precise 0.3 MPa for a leak-test fixture that needs a repeatable pressure reference across many test cycles.
Conveyor tensioning
Regulate air to a belt tensioning cylinder on a packaging line, keeping the force consistent despite upstream compressor cycling.
Is the Airtac GAR Air Regulator GAR50020SNK the Right Regulator?
Choose the GAR500 body when your line needs a 3/4in port and the 580 g mass suits a fixed panel or bracket mount. The standard S type regulates 0.05-0.9 MPa (7-130 psi), covering typical machine pressures; the L type would cap at 0.4 MPa and cannot reach a 0.5-0.6 MPa setpoint. This unit includes the mounting bracket and uses PT threads with an MPa/psi gauge scale, though no gauge is fitted here. The K option adds a reverse-flow (reflux) valve, which is attached but not described in our data. If the air also needs cleaning, pair this with a GAF filter upstream or use a GAFR500-20 instead. The S type's adjustable band is about 2.4x the L type's span (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 GAR50020SNK FAQ
The GAR50020SNK regulates air 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). It operates from -20 to 70 C and weighs 580 g with a 3/4in port. It has no gauge and includes a reflux valve.
The N in the code means no pressure gauge is fitted. You read the downstream pressure on the line's own panel gauge instead. This is common when the regulator mounts in a spot where a local gauge is redundant or space is tight.
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