Dwyer Instruments 4050 Capsuhelic Differential Pressure Gauge

Overview

The Dwyer Instruments 4050 is a Capsuhelic differential pressure gauge designed for accurate, fast indication of pressure differences in various industrial applications. Unlike traditional glycerin-filled gauges, the Capsuhelic design uses a capsule-based measurement system that eliminates the need for filling liquid, making it ideal for outdoor and harsh environments. The frictionless movement allows accurate readings at ranges as low as 0.5 inch water column.

Key Features

• Differential pressure measurement with 0-50 inch water column range
• No filling liquid required for outdoor use
• Capsule design rated for system pressures up to 500 psig
• Frictionless diaphragm-actuated movement
• Fast, accurate indication of pressure differences
• Zero and range adjustments accessible from outside without disassembly
• 4-inch (101.6 mm) diameter dial face
• Mounting orientation: diaphragm in vertical position
• Process connections: 1/4" female NPT (high and low pressure, duplicated for air/gas and liquids)
• Accuracy: ±3% of full scale at 70°F (±2% for 4000S models)
• Operating temperature: 20 to 200°F (-6.67 to 93.3°C)
• Maximum system pressure: -20" Hg to 500 psig (-0.677 to 34.4 bar)

Applications

• Measurement of pressure across filters
• Liquid level indication in storage tanks
• Flowing fluid pressure monitoring
• Ventilation and HVAC system monitoring
• Pressure drop measurement in industrial systems

Included Accessories

• Two 1/4" NPT plugs for duplicate pressure taps
• Four flush mounting adapters with screws
• Four surface mounting screws