Airtac GAR Air Regulator GAR30008SJN
The AirTAC Airtac GAR Air Regulator GAR30008SJN is a genuine compressed-air pressure regulator. It sets and holds a steady downstream pressure across the 0.05 - 0.9 MPa range, with 1/4" 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 size1/4"
- Pressure range0.05 - 0.9 MPa
- RegulationStandard
- GaugeNone (N)
- Reflux valveNo
- Max pressure1.0 MPa
- Weight300 g
About the Airtac GAR Air Regulator GAR30008SJN
The GAR30008SJN 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, clean, or dry the air, and it has no drain bowl or filter element. This unit carries a 1/4in port, weighs 300 g, and uses the standard type, regulating from 0.05-0.9 MPa (7-130 psi).
The pressed-in self-locking knob stops the set pressure from drifting when the machine vibrates or the knob gets knocked, so a calibrated setting stays put through a shift. Because this model has no gauge (N), you read the downstream pressure on the line's own panel gauge instead. Its balanced adjustment mechanism also holds the setpoint as the supply pressure varies, keeping the outlet stable without constant re-adjustment.
Airtac GAR Air Regulator GAR30008SJN Technical Specifications
| Model | Airtac GAR Air Regulator GAR30008SJN |
|---|---|
| Series | GAR300 air regulator |
| Port size | 1/4" (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 | None |
| 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 | 300 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 GAFR300 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 GAR30008SJN
| GAR300 | GA300 series air regulator — sets the port range and weight class. |
|---|---|
| 08 | Port size 1/4". This body offers 08 = 1/4", 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). |
| 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. |
| (blank) | No reverse-flow (reflux) valve. |
A GAR regulates pressure but does not filter — there is no bowl, element or drain code. Need to clean the air too? The matching GAFR300-08 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 | GAR300 · 1/4" · 300 g |
|---|---|
| One size down | GAR200 |
| One size up | GAR400 |
| Add filtration | GAFR300-08 (filter + regulator) |
Where the Airtac GAR Air Regulator GAR30008SJN Is Used
CNC coolant valve
Set a steady 0.4 MPa to a coolant valve on a small CNC lathe, keeping the spray consistent even when the shop compressor cycles and the supply pressure swings.
Bench press regulator
Hold a repeatable 0.6 MPa for a pneumatic bench press used in light assembly, so each cycle delivers the same force without the operator re-setting the knob.
Lab air supply
Regulate air to a lab test fixture at 0.2 MPa, where the self-locking knob prevents accidental changes when the rig is bumped during experiments.
Is the Airtac GAR Air Regulator GAR30008SJN the Right Regulator?
Choose the GAR300 body when you need a mid-size regulator: its 1/4in port and 300 g mass suit a single machine station or a small bank of cylinders, while the lighter GAR200 (170 g) covers smaller tools and the heavier GAR400 (570 g) feeds larger manifolds. This is the standard S type, so it regulates across the full 0.05-0.9 MPa (7-130 psi) band, unlike the L type which only reaches 0.4 MPa and cannot hit a 0.5-0.6 MPa setpoint at all. The J code means no mounting bracket is included, so plan for a panel mount or use an existing bracket, and the N code means no gauge is fitted, so rely on a line gauge for readouts. Threads are PT with an MPa/psi gauge scale if you add one later. If the air also needs cleaning, step up to a GAFR300-08 filter-regulator or fit a GAF filter upstream, since this unit only regulates pressure. The S type's adjustable band of 0.85 MPa is about 2.4x the L type's 0.35 MPa span, giving you a much wider range of setpoints for varying line demands.
Quick checklist
- ✓ Body size for your air demand (1/4" 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 GAFR300
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 300 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 GAFR300-08 filter-regulator as your air-prep needs grow.
Airtac GAR Air Regulator GAR30008SJN FAQ
The GAR30008SJN is an air pressure regulator with a 1/4in port and a weight of 300 g. It regulates from 0.05-0.9 MPa (7-130 psi) with a maximum supply pressure of 1.0 MPa (145 psi) and a proof pressure of 1.5 MPa (215 psi). The operating temperature range is -20 to 70 C. It has no gauge and no bracket, and uses PT threads.
The N means the regulator is supplied without a pressure gauge. You read the downstream pressure on the line's own panel gauge or install a separate gauge. This model also has no mounting bracket (J), so it is intended for panel mounting or use with an existing bracket.
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