Airtac B52-GAR Copper-Free Air Source Treatment Unit B52-GAR30010SJNG
The AirTAC Airtac B52-GAR Copper-Free Air Source Treatment Unit B52-GAR30010SJNG is a genuine compressed-air pressure regulator. It sets and holds a steady downstream pressure across the 0.05 - 0.9 MPa range, with 3/8" 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 size3/8"
- Pressure range0.05 - 0.9 MPa
- RegulationStandard
- GaugeNone (N)
- Reflux valveNo
- Max pressure1.0 MPa
- Weight300 g
About the Airtac B52-GAR Copper-Free Air Source Treatment Unit B52-GAR30010SJNG
The GAR30010SJNG is an air pressure regulator that takes a higher supply pressure and holds a steady, lower downstream pressure you set with the knob. It regulates pressure only - it does not filter the air or remove water, oil or particles, and has no drain bowl or filter element. This unit has a 3/8in port and weighs 300 g, placing it in the mid-size GAR300 class for shop and machine lines.
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 balanced adjustment mechanism holds its setting as supply pressure varies, while the pressed-in self-locking knob prevents drift from vibration or accidental knocks. Rated for -20 to 70 C, this model ships without a gauge and without a mounting bracket.
Airtac B52-GAR Copper-Free Air Source Treatment Unit B52-GAR30010SJNG Technical Specifications
| Model | Airtac B52-GAR Copper-Free Air Source Treatment Unit B52-GAR30010SJNG |
|---|---|
| Series | GAR300 air regulator |
| Port size | 3/8" (G thread) |
| Regulation type | Standard |
| Pressure range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure gauge | None (N) — bar / MPa 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 B52-GAR Copper-Free Air Source Treatment Unit B52-GAR30010SJNG
| GAR300 | GA300 series air regulator — sets the port range and weight class. |
|---|---|
| 10 | Port size 3/8". 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. |
| G | G thread; gauge scale bar / MPa. |
| (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 GAFR300-10 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 · 3/8" · 300 g |
|---|---|
| One size down | GAR200 |
| One size up | GAR400 |
| Add filtration | GAFR300-10 (filter + regulator) |
Where the Airtac B52-GAR Copper-Free Air Source Treatment Unit B52-GAR30010SJNG Is Used
Machine tool pressure setting
Set a steady 0.4 MPa for a CNC clamp circuit or a pneumatic fixture on a machining center. The 3/8in port feeds medium air demand, and the balanced design holds the setpoint even when the shop supply fluctuates.
Assembly line workstations
Regulate air for pneumatic screwdrivers or nutrunners on an assembly line. The self-locking knob keeps the pressure from drifting as operators work nearby, and the compact 300 g body mounts easily on a machine frame.
Test bench regulated supply
Provide a stable, adjustable pressure source for prototype testing or calibration rigs. The standard 0.05-0.9 MPa range covers most test pressures, and the G thread gauge scale (bar/MPa) suits metric instrumentation.
Is the Airtac B52-GAR Copper-Free Air Source Treatment Unit B52-GAR30010SJNG the Right Regulator?
Choose the GAR30010SJNG when you need a 3/8in port regulator for medium-demand lines. The GAR300 body at 300 g sits between the smaller GAR200 (170 g) and the larger GAR400 (570 g), so match the port size to your line diameter and the weight to your mounting structure. This standard type covers 0.05-0.9 MPa (7-130 psi), suitable for most shop air; the L type only reaches 0.4 MPa and cannot hit a 0.5-0.6 MPa setpoint. The N means no gauge is fitted, so read pressure on your line's own panel gauge. The J means no bracket is included - plan for panel mounting or an existing bracket. The G thread gives a bar/MPa gauge scale, matching metric-system crews. If you also need clean air, use a GAFR300-10 (filter-regulator) or a GAF filter upstream. The S type's adjustable band is about 2.4x the L type's (0.85 MPa vs 0.35 MPa).
Quick checklist
- ✓ Body size for your air demand (3/8" 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 GAFR300-10 filter-regulator as your air-prep needs grow.
Airtac B52-GAR Copper-Free Air Source Treatment Unit B52-GAR30010SJNG FAQ
The GAR30010SJNG is a GAR300 series air pressure regulator with a 3/8in 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). Operating temperature range is -20 to 70 C. This standard type unit has no gauge (N) and no bracket (J), with G thread connections.
The N means this regulator ships without a pressure gauge. You would read the downstream pressure on your line's own panel gauge or install a separate gauge. The G thread option means if you add a gauge, it reads in bar/MPa rather than the MPa/psi scale of PT thread or the psi/bar scale of NPT thread.
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