Airtac GAR Air Regulator GAR50020SJNK
The AirTAC Airtac GAR Air Regulator GAR50020SJNK 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
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GAR Air Regulator GAR50020SJNK
The GAR50020SJNK is an air pressure regulator that takes a higher supply pressure and holds a steady, lower downstream pressure you set with the knob. It does not filter the air, remove water, or separate particles - it only regulates pressure. This unit has a 3/4in port and weighs 580 g, placing it in the mid-large size class for machine-level air distribution.
This 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). The pressed-in self-locking knob prevents the setpoint from drifting due to vibration, keeping your downstream pressure stable during operation. It is rated for -20 to 70 C.
Airtac GAR Air Regulator GAR50020SJNK Technical Specifications
| Model | Airtac GAR Air Regulator GAR50020SJNK |
|---|---|
| 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 | Not included (J) |
| 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 GAR50020SJNK
| 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). |
| 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. |
| 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 GAR50020SJNK Is Used
Machine section pressure
Set a stable 0.4 MPa for a stamping press clutch circuit while the main supply fluctuates between 0.6 and 0.8 MPa. The regulator holds the setpoint so the clutch engages consistently.
High-flow tool supply
Feed a 3/4in line to a large impact wrench or a sandblasting nozzle. The GAR500 keeps the tool's inlet pressure steady, preventing torque or blast variation as other equipment cycles on the same supply.
Conveyor tension control
Regulate air pressure for a belt-tensioning cylinder on a packaging line. The self-locking knob holds the setting despite conveyor vibration, so belt tension stays constant during long runs.
Is the Airtac GAR Air Regulator GAR50020SJNK the Right Regulator?
Choose the GAR500 for 3/4in piping where you need to set a stable pressure for a machine section or a high-demand tool. The body size and 580 g weight mean it needs a proper panel or bracket mount, not support from the tubing - though this version (J) omits the bracket for panel mounting. The standard S type covers 0.05-0.9 MPa, suitable for most industrial actuators and tools; if you only need low pressures up to 0.4 MPa, the L type offers finer adjustment in that band. This model has no gauge (N), so read pressure on the line's own panel gauge. The PT thread gives an MPa/psi gauge scale when one is fitted. A reverse-flow (reflux) valve is attached (K). If the air also needs cleaning, use a matching GAFR filter-regulator or a GAF filter upstream. 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 GAR50020SJNK FAQ
The GAR50020SJNK is a standard-type air pressure regulator with a 3/4in port. It regulates from 0.05-0.9 MPa (7-130 psi), with a maximum supply pressure of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). It operates from -20 to 70 C and weighs 580 g. This version has no gauge (N), no bracket (J), PT threads, and includes a reflux valve (K).
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 add a separate one. The K indicates a reverse-flow (reflux) valve is attached to the unit. This model also omits the mounting bracket (J) for panel mounting. It is a regulator only - it does not filter or clean the air.
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