A GUIDE TO OUR SYMBOLS AND ABBREVIATIONS

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For your convenience, and to minimise incorrect use, injury or costly repairs, we have denoted proper use with symbols.
These symbols will assist you to easily identify the products that you require to suit your application.

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Magnehelic Pressure Gages
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Magnehelic Pressure Gages




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  • For High accuracy differential pressure gage
  • Large selection of ranges available to suit your needs precisely
  • Quickly indicates low air or non-corrosive gas pressures--either positive, negative (vacuum) or differential
  • The design resists shock, vibration and over-pressures
  • It is the industry standard to measure fan and blower pressures, filter resistance, air velocity, furnace draft, pressure drop across orifice plates, liquid levels with bubbler systems and pressures in fluid amplifier or fluidic systems.
  • Checks gas-air ratio controls and automatic valves, and monitors blood and respiratory pressures in medical care equipment

Product Applications

  • Filter Monitoring
  • Air Velocity with Dwyer Pitot Tube
  • Blower Vacuum Monitoring
  • Fan Pressure Indication
  • Duct, Room or Building Pressures
  • Clean Room Positive Pressure Indication