
The AirTAC Airtac GAR Air Regulator GAR30015SJNK is a genuine compressed-air pressure regulator. It sets and holds a steady downstream pressure across the 0.05 - 0.9 MPa range, with 1/2" ports and a no-gauge (N) port for a panel gauge. It regulates pressure only — it does not filter the air or remove water.
The GAR30015SJNK 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 or dry the air and has no bowl or element; for clean air you need a GAFR or a GAF upstream. This 1/2in model weighs 300 g and regulates from 0.05-0.9 MPa (7-130 psi), making it a standard-pressure choice for medium-demand lines.
Its pressed-in self-locking knob keeps the setpoint from drifting when the machine vibrates, so a calibrated pressure stays put between shifts. With no gauge fitted, you read the pressure on the line's own panel gauge. The reverse-flow (reflux) valve is attached per the K code, and the PT thread gives MPa/psi gauge compatibility.
| Model | Airtac GAR Air Regulator GAR30015SJNK |
|---|---|
| Series | GAR300 air regulator |
| Port size | 1/2" (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 | 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.
| GAR300 | GA300 series air regulator — sets the port range and weight class. |
|---|---|
| 15 | Port size 1/2". 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. |
| 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 GAFR300-15 is the same regulator with a built-in filter.
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 · 1/2" · 300 g |
|---|---|
| One size down | GAR200 |
| One size up | GAR400 |
| Add filtration | GAFR300-15 (filter + regulator) |
Set a steady 0.4 MPa for a milling fixture clamp on a CNC table. The self-locking knob holds the setting through spindle vibration, and the 1/2in port feeds the clamp cylinder directly.
Regulate air to a belt tensioner on a packaging line. The 300 g body mounts on the frame rail, and the no-gauge design relies on the line's central panel readout for monitoring.
Provide a stable 0.6 MPa to a pneumatic test fixture on an R&D bench. The balanced design holds the setpoint as shop supply fluctuates, and the reflux valve is fitted for the specified flow direction.
Choose the GAR300 body when your line needs 1/2in ports and a 300 g regulator that mounts on a panel or existing bracket; this J code omits the bracket, so plan for a panel cutout or your own mount. The S type spans 0.05-0.9 MPa (7-130 psi) for standard machinery, while an L type would cap at 0.4 MPa and miss higher setpoints. Since N removes the gauge, verify your panel has one; PT threads pair with MPa/psi scales. The K option adds a reflux valve, and if the air needs cleaning, step up to a GAFR300-15 or add a GAF filter upstream. This S type's adjustable band is about 2.4x the L type's span (0.85 MPa vs 0.35 MPa).
Quick checklist
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 GAFR300-15 filter-regulator as your air-prep needs grow.
It regulates air from 0.05-0.9 MPa (7-130 psi), with a max supply of 1.0 MPa (145 psi) and proof pressure of 1.5 MPa (215 psi). Operating temperature is -20 to 70 C, and the unit weighs 300 g with a 1/2in port. It is a standard (S) type regulator with no gauge and no bracket.
J means the mounting bracket is not included, so you need a panel mount or your own bracket. N means no pressure gauge is fitted, so you read the downstream pressure on the line's own panel gauge instead of on the regulator.
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