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The Harris Products Group 64000153 is a 2.5-inch industrial replacement pressure gauge designed for gas distribution and welding regulators, specifically featuring a red line safety indicator for delivery pressure monitoring.
Features
Red Line Safety Marking: Visual indicator at critical pressure points to alert operators to hazardous delivery levels
One-Piece Threaded Lens: Impact-resistant polycarbonate crystal designed for easy cleaning and protection of internal components
Dual-Scale Markings: High-contrast white background with dual-colored units for multi-region compliance
Oxygen Service Compatibility: Explicitly marked "Use No Oil" signifying cleaning for high-pressure gas service
Corrosion Resistance: Brass-plated steel housing and brass internal wetted parts
Regulator Integration: Designed for compatibility with Harris regulators featuring 10-micron internal filters
Compliance: Meets ANSI B40.1 and CGA E-4 standards for gas pressure regulator ignition testing
Specifications
Model Number: 64000153
Pressure Range: 0 - 30 PSI (0 - 200 kPa)
Dial Diameter: 2.5 inches (63.5 mm)
Connection Size: 1/4 inch NPT male
Connection Location: Lower mount (bottom stem)
Scale Type: Dual-scale (PSI/kPa)
Scale Colors: Black (PSI), Red (kPa)
Accuracy Class: ANSI B40.1 Grade B (±3-2-3% of span)
Maximum Temperature: 121°C (250°F) for short durations
Case Material: Brass-plated steel
Lens Material: One-piece threaded polycarbonate
Dial Face Material: Steel with UV-resistant markings
Socket/Stem Material: Brass
Internal Sensing Element: Phosphor bronze or brass Bourdon tube
Movement: Brass and polyester components
Graduation: 0.1 PSI
Cleaning: Cleaned for oxygen service ("Use No Oil")
Applications
Acetylene delivery pressure monitoring
Fuel gas regulation for welding and cutting operations
Gas distribution manifold systems
Light-to-medium duty industrial welding and metalworking facilities
