Dial Size: 4 inches (100 mm)Measurement Range: Vacuum range (typically 0 to -1 bar or 0 to -30 in Hg / -760 mm Hg)Mounting / Entry: Bottom connection (Direct mounting)Process Connection: 1/2' BSP (British Standard Pipe) Male Wetted Parts & Movement: Stainless Steel (SS 316 or SS 304)Case & Bezel Material: Stainless Steel (SS 304 with crimped or bayonet ring)Window / Lens: Safety glass or poly carbonate Liquid Filling: Glycerin filled (for vibration dampening and pointer stabilization)Accuracy Class: Typically ±1.0% of full-scale value (Class 1)Operating Temperature: Maximum ambient/process temperature up to 60°C (140°F) due to glycerin filling limitations Protection Class: IP 65 (weatherproof and dust proof)Key Features & Applications Vibration Resistance: The glycerin filling protects internal components from sudden pressure spikes and high-vibration environments.Corrosion Resistance: The complete stainless steel build prevents rusting in harsh industrial or outdoor conditions.Common Uses: Vacuum pumps, chemical processing, marine environments, hydraulics, and wastewater treatment systems.
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