Airgas - MILGA140-03 - Miller® 2" Steel 200 psi Pressure Gauge

Miller® 2" Steel 200 psi Pressure Gauge

Airgas Part #:MILGA140-03

Manufacturer Part #:GA140-03

$NA.NA /NA

Dual-Scale Layout: Displays PSI on the outer ring and BAR on the inner ring for cross-reference without conversion.
Shatter-Resistant Polycarbonate Lens: One-piece design with 1/4-turn crystal ring to resist impact from slag and sparks.
Safety-Vented Case: Engineered to vent from the back or perimeter during internal Bourdon tube failure to protect the operator.
High-Visibility Dial Face: Contrast-optimized white lettering against a dark base for low-light environments.
Parallax Mitigation: Cupped steel face design reduces reading errors from side angles.
Mechanical Movement: Watch-type gear movement designed for rapid pressure fluctuations.
Indicator: Fixed, non-adjustable balanced indicator needle.
Structural Integrity: Solid forged brass base for high torque resistance during installation.

Primary Equipment: Direct replacement delivery gauge for Miller Smith Series 30 welding regulators.
Gas Compatibility: Argon (Ar), Argon/CO2 Blends, Helium (He), Nitrogen (N2), and Compressed Air.
Industrial Use Cases: MIG/TIG shielding gas lines, HVAC line pressure-testing, purging, and pneumatic shop air lines.
Oxygen Service Restriction: NOT factory-cleaned or certified for Oxygen (O2) service; risk of spontaneous combustion.
Corrosive Gas Restriction: Not compatible with Ammonia, Hydrogen Sulfide (H2S), or other sour gases that attack copper alloys.
Installation Requirement: Requires gas-compatible thread sealant (PTFE tape) and torque application via brass wrench flats only.

Product Type

» Pressure Gauge

Gauge Diameter

» 2"

Material

» Steel

Thread Size/Type

» 1/4" NPT

Connection Location

» Bottom Port

Color

» Black

Calibration

» 200 psi

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