Airtac GAR Air Regulator GAR40015LJ
The AirTAC Airtac GAR Air Regulator GAR40015LJ is a genuine compressed-air pressure regulator. It sets and holds a steady downstream pressure across the 0.05 - 0.4 MPa range, with 1/2" ports and a built-in circular pressure gauge. It regulates pressure only — it does not filter the air or remove water.
- TypeAir regulator
- Port size1/2"
- Pressure range0.05 - 0.4 MPa
- RegulationLower pressure
- GaugeCircular
- Reflux valveNo
- Max pressure1.0 MPa
- Weight570 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 GAR40015LJ
The AirTAC GAR40015LJ 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 circular gauge. It does not filter or clean the air; it only regulates pressure. This model has a 1/2" port and weighs 570 g, placing it in the mid-size GAR400 class for branch lines and individual stations.
Its lower-pressure (L) type regulates from 0.05-0.4 MPa (7-58 psi), with a finer resolution over that low band than the standard S type. The pressed-in self-locking knob prevents the setpoint from drifting when the machine vibrates, so a calibrated low-pressure setting stays put during a shift.
Airtac GAR Air Regulator GAR40015LJ Technical Specifications
| Model | Airtac GAR Air Regulator GAR40015LJ |
|---|---|
| Series | GAR400 air regulator |
| Port size | 1/2" (PT thread) |
| Regulation type | Lower pressure |
| Pressure range | 0.05 - 0.4 MPa (7 - 58 psi) |
| Pressure gauge | Circular, MPa / psi scale |
| 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 | 570 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 GAFR400 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 GAR40015LJ
| GAR400 | GA400 series air regulator — sets the port range and weight class. |
|---|---|
| 15 | Port size 1/2". This body offers 10 = 3/8", 15 = 1/2". |
| L | Lower pressure regulation: 0.05 - 0.4 MPa (7 - 58 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. |
| (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 GAFR400-15 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 | GAR400 · 1/2" · 570 g |
|---|---|
| One size down | GAR300 |
| One size up | GAR500 |
| Add filtration | GAFR400-15 (filter + regulator) |
Where the Airtac GAR Air Regulator GAR40015LJ Is Used
Low-pressure air sensing
Set a stable 0.1-0.2 MPa supply for a back-pressure sensor or a proximity detector on a parts-present station. The fine low-range adjustment holds the sensing threshold without hunting.
Delicate actuator control
Feed a soft-touch clamp or a light press at 0.15-0.3 MPa so the force stays gentle on fragile components. The self-locking knob keeps the setting fixed through repeated cycles.
Bench test rig
Use it on a test bench to supply a precise low pressure to a gauge or a calibrated leak tester. The 1/2" port feeds the rig without restricting the air demand.
Is the Airtac GAR Air Regulator GAR40015LJ the Right Regulator?
Choose the GAR400 body when your line needs a 1/2" port and the 570 g mass suits a panel or bracket mount; the GAR300 above it is 300 g with up to 1/2" ports, while the GAR500 below it is 580 g with a 3/4" port. The L type here regulates only 0.05-0.4 MPa, so it is the right part for low-pressure work like air sensing or delicate actuation, but it cannot reach a 0.5-0.6 MPa setpoint at all. The circular gauge is fitted and reads MPa/psi (PT thread), and the J code means no mounting bracket is included, so plan for a panel mount or an existing bracket. If the line also needs clean air, use a GAFR400-15 filter-regulator or a separate GAF filter upstream, since this unit does not filter. The L type's adjustable band of 0.35 MPa is only about 2.4x narrower than the S type's 0.85 MPa span, so the low-range resolution comes at the cost of reach.
Quick checklist
- ✓ Body size for your air demand (1/2" 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 GAFR400
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 570 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 GAFR400-15 filter-regulator as your air-prep needs grow.
Airtac GAR Air Regulator GAR40015LJ FAQ
It is a regulator-only unit with a 1/2" port and a weight of 570 g. The regulated range is 0.05-0.4 MPa (7-58 psi), max 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. It has a circular gauge fitted, no mounting bracket, and PT threads.
The L type regulates only 0.05-0.4 MPa (7-58 psi) instead of the standard 0.05-0.9 MPa (7-130 psi), giving finer resolution over that low band. It is meant for low-pressure applications like air sensing or delicate actuation, but it cannot reach a 0.5-0.6 MPa setpoint at all, so it is the wrong part for a standard machine running at higher pressures.
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