Airtac GAR Air Regulator GAR50020SJK
The AirTAC Airtac GAR Air Regulator GAR50020SJK 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
- 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 GAR50020SJK
The GAR50020SJK is a regulator-only unit that takes a higher supply pressure and holds a steady, lower downstream pressure you set with the knob and read on the fitted circular gauge. It does not filter, clean, dry, or remove water or particles from the air - it only regulates pressure. This model has a 3/4in port and weighs 580 g, placing it in the mid-large size class for machine-level air distribution.
The pressed-in self-locking knob prevents the set pressure from drifting due to vibration or accidental knocks, so a calibrated setting stays put during production runs. The balanced adjustment mechanism also helps the regulator hold its setpoint as the supply pressure fluctuates. A reverse-flow (reflux) valve is attached to this unit, and the PT thread gives a gauge scale in MPa/psi.
Airtac GAR Air Regulator GAR50020SJK Technical Specifications
| Model | Airtac GAR Air Regulator GAR50020SJK |
|---|---|
| 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 | 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 GAR50020SJK
| 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. |
| (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 GAR50020SJK Is Used
Machine header pressure
Set a stable 0.6 MPa for a multi-station assembly machine fed by a 3/4in header, protecting downstream valves and actuators from supply swings.
Paint booth air supply
Hold a consistent 0.3 MPa for spray guns in a finishing line, where pressure drift would change atomization and finish quality.
Conveyor system regulation
Regulate air for a bank of conveyor stops and diverters, keeping the force even across multiple stations without a filter element.
Is the Airtac GAR Air Regulator GAR50020SJK the Right Regulator?
Choose the GAR500 body when you need a 3/4in port to feed a machine header or a multi-station line; step down to the GAR400 (570 g) for 1/2in ports or up to the GAR600 (1390 g) for a 1in port. This is the standard S type, regulating 0.05-0.9 MPa (7-130 psi), which suits most industrial actuators; the L type only reaches 0.4 MPa and cannot hit a 0.5-0.6 MPa setpoint. The J code means no mounting bracket is included, so plan for panel mounting or an existing bracket. A circular gauge is fitted with an MPa/psi scale for PT threads, and the K code adds a reflux valve. If the line also needs clean air, use a GAFR500-20 or a separate GAF filter upstream. The S type's 0.85 MPa adjustable band is about 2.4x the L type's 0.35 MPa span.
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 GAR50020SJK FAQ
The GAR50020SJK is a standard-type air pressure regulator with a 3/4in port and a regulated range of 0.05-0.9 MPa (7-130 psi). Maximum supply pressure is 1.0 MPa (145 psi), proof pressure is 1.5 MPa (215 psi), and the temperature range is -20 to 70 C. The unit weighs 580 g and has a circular gauge fitted with an MPa/psi scale.
The K code indicates a reverse-flow (reflux) valve is attached to the GAR50020SJK. This is a factory-fitted option that comes with the unit. The regulator itself does not filter or clean the air; if you need filtration, install a GAFR500-20 or a separate GAF filter upstream.
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