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Test Your Knowledge: Which Piece Doesn’t Belong? And What Is Missing?


When it comes to configuring steam systems there are a number of factors to consider to determine what parts are needed and where they should be placed.

In the sketch above, can you spot:

  • Which piece of equipment shown is not recommended?
  • Which two major pieces of equipment are missing?

Know the answers? If not, here they are:


Answer #1 – Quick opening solenoid valves are not recommended for steam service due to the potential for water hammer and thermal shock, both of which decrease the longevity of equipment and can lead to safety issues.

Answer #2 – The two major pieces are a safety value and a vacuum breaker. A safety valve is required downstream of the pressure reducing valve by section VIII of ASME code. As we describe in our previously posted article on vacuum breakers, a vacuum breaker is recommended downstream of the coil and above the steam trap for complete condensate drainage under all operating conditions.

Questions about your system? Contact Campbell-Sevey for answers and best practices.


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Products We Carry

  • Hot Water Boilers
  • Watertube Steam Boilers
  • Firetube Steam Boilers
  • Deaerators
  • Heat Recovery Steam Generators (HRSG’s)
  • Automatic Recirculation Valves
  • Economizers
  • Gas-Fired Water Heaters
  • Gas-Fired Humidifiers
  • Boiler/Generator Flue Stacks
  • Continuous Emissions Monitors (CEMS)
  • Pressure Reducing Valves
  • Safety and Relief Valves
  • Control Valves
  • Pressure Independent Control Valves
  • Expansion Joints, Guides, Anchors
  • Flash Tanks
  • Flow Meters
  • Balancing Valves
  • Check Valves
  • Separators
  • Pumps
  • Pressure Booster Systems
  • Piston Valves
  • Heating/Cooling Coils
  • Plate and Frame Heat Exchangers
  • Shell and Tube Exchangers
  • Water Heaters
  • Steam Humidifiers
  • Vacuum Systems
  • Condensers
  • Steam Traps
  • Wireless Steam Trap Monitors
  • Tube Bundles
  • Direct Gas-Fired Space Heaters
  • Direct Gas-Fired Make-Up Air Units
  • Unit Heaters
  • Strainers
  • Air Vents
  • Liquid Drainers
  • Heat Transfer Packages
  • Digital Water Mixing Valves
  • Air Cooled Condensers/Dry Coolers
  • Steam Filters
  • Electric Condensate Pumps
  • Steam/Air-Powered Condensate Pumps
  • Packaged Condensate Pump Skids