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Make the Most of Your Steam System With Our Steam Energy Conservation Seminar. 



  • The Steam Team Brings Knowledge to Your Plant

    The team at Campbell-Sevey has a wealth of knowledge about how to make steam systems more efficient, troubleshooting system issues, adapting systems for specific applications, new products, and much more. Now you can bring that knowledge into your plant with our Steam Team Tech Training & Tour sessions. 

    Each 1-hour Steam Team Tech Training session covers a specific topic directly relate to issues your technicians want to learn. These include:

    • How steam traps, coils and pumps work
    • Why valves fails
    • How to repair specific types of equipment
    • How steam systems work
    • The 5 greatest areas of steam efficiency loss
    • and much more

    These highly educational sessions are then followed by a 1-hour tour of your plant to illustrate key points and address specific concerns your team may have. 

    For more information about Campbell-Sevey's Steam Team Tech Training and Tour sessions contact the team at Campbell-Sevey. Or if you have that could use more intensive training check out our Steam Energy Conservation Seminar

  • Test Your Knowledge: How to Solve Equipment Stall

    Stall is easily defined as a condition in which heat transfer equipment is unable to drain condensate and becomes flooded due to insufficient system pressure. It happens for a variety of reasons, but it always comes back the fact that there is not always enough system pressure to return the condensate.

    Over the years there have been a variety of “solutions” that would all alleviate the stall scenario, but which of the following solutions is considered the best?

    1. Installation of a Vacuum Breaker
    2. Installation of a Positive Pressure System
    3. Installation of a Safety Drain
    4. Installation of a Pump Trap in a Closed System

    And the answer is...

    4. Installation of a Pump Trap in a Closed System

    The benefits of using a pump trap in a closed system to solve the problem of “stall” can provide multiple benefits that reduce maintenance, improve performance, increase equipment life, and provide significant cost savings in installation and operation. Here is an outline from Armstrong on understanding and solving equipment stall in fluid handling. 

    Armstrong Fluid Handling Understanding and Solving Equipment Stall

    Everyone has heard of it, everyone has seen or experienced it. So why is there so much mystery surrounding equipment “stall”. Stall can most easily be defined as a condition in which heat transfer equipment is unable to drain condensate and becomes flooded due to insufficient system pressure.

    What causes stall?

    Stall occurs primarily in heat transfer equipment where the steam pressure is modulated to obtain a desired output (i.e. product temperature). The pressure range of any such equipment ( coils, shell & tube, etc.…) can be segmented into two (2) distinct operational modes: Operating and Stall

    Operating: In the upper section of the pressure range the operating pressure (OP) of the equipment is greater than the back pressure (BP) present at the discharge of the steam trap. Therefore a positive pressure differential across the trap exists allowing for condensate to flow from the equipment to the condensate return line.

    Stall: In the lower section of the pressure range the operating pressure (OP) of the equipment is less than or equal to the back pressure (BP) present at the discharge of the steam trap. Therefore a negative or no pressure differential exists, this does not allow condensate to be discharged to the return line and the condensate begins to collect and flood the equipment.

    Effects of “stall”

    In a stall condition condensate accumulates within the equipment. When equipment becomes flooded by stalled condensate a variety of problems ranging from minor to catastrophic failure will occur. 

    Problems associated with stall: 

    • Inadequate condensate drainage
    • Waterhammer (Thermal shock)
    • Frozen coils
    • Corrosion due to cool condensate and the formation of Carbonic acid
    • Poor temperature control
    • Short equipment life
    • Control valve hunting (system cycling)
    • Reduction in heat transfer capacity

    Factors contributing to “stall”

    Stall happens for a variety of reasons, but it always comes back the fact that there is not always enough system pressure to return the condensate. The lack of sufficient pressure in the equipment may be caused by anyone of the following:

    • Oversized equipment (excessive surface area)
    • Overly conservative fouling factors
    • Back pressure at equipment discharge due to elevation or pressure in the line
    • Modulating control
    • Equipment operating at lower pressures due to light load demands
    • Vacuum

    Many types of heat transfer equipment are susceptible to stall because they are designed with excessive safety factors built into the design. In attempting to provide an extremely robust heat exchanger, equipment manufactures and engineers often “over design” equipment which often lends itself to a stall scenario.


    The problems of equipment stall are well known and well documented. Over the years there has been a variety of so called “solutions” that would all alleviate the stall scenario.

    > Installation of a vacuum breaker:


    To relieve a vacuum within equipment allowing for condensate drainage.


    1. This practice will only help if the condensate is gravity drain to atmosphere, any pressure present at the discharge of the trap will not allow condensate drainage.
    2. Allows undesirable air into the system.
    3. Vacuum breakers often fail due to a poorly chosen location downstream of the equipment causing a build-up of scale/sediment impeding the operation. Such a location may also allow the hydrostatic pressure of a vertical water column to keep the vacuum breaker closed in a small vacuum.
    4. Loss of valuable flash steam

    > Installation of a safety drain:


    The use of a second steam trap located above the primary trap which discharges condensate to drain when the system goes into a stall condition.


    A significant amount of condensate/flash steam and valuable BTU’s are lost down the drain when the system is in stall. Stall load may as high as 90% or more of the design load, therefore 90% of the condensate coming from the equipment goes down the drain

    > Installation of a positive pressure system:


    The use of air or other gas to maintain set pressure to ensure a positive pressure differential across the trap allowing for condensate drainage.


    Injects a significant amount of undesirable air into the equipment. This large amount of air may cause multiple problems:

    1. Air acts as an insulator thereby decreasing the heat transfer capacity of the equipment.
    2. A heavy dependence on air vents to evacuate the air from the equipment.
    3. Air vents may be open a significant amount of time allowing for loss of valuable BTU’s.

    > The Solution: Closed System Pump Trap

    The application of a “closed” system pump trap on your modulating steam equipment can provide the following benefits:

    • Continuous condensate drainage, even in a vacuum
    • Eliminates the need for vacuum breakers
    • Saves valuable flash steam from escaping into the atmosphere
    • No need to run expensive vent lines
    • Size pump traps on stall load, resulting in smaller pumps and less cost
    • No rotating seals, cavitation, or NPSH requirements
    • Negligible operating cost
    • Longer equipment life
    • Reduced corrosion
    • Better temperature control
    • Reduced maintenance…….and more

    The Closed Loop Concept

    The closed loop application of a pump trap is based around one basic concept: To equalize the pressure in the heat exchange equipment and the pump trap thereby allowing condensate to drain by gravity to the pump trap.

    The equalization of pressure is accomplished by:

    1. Connecting the vent of the pump trap to the inlet steam side of the equipment or to a condensate receiver upstream of the pump trap.
    2. Placing the steam trap on the outlet side of the pump trap or eliminating the steam trap altogether


    The benefits of using a pump trap in a closed system to solve the problem of “stall” can provide multiple benefits that reduce maintenance, improve performance, increase equipment life, and provide significant cost savings in installation and operation. Applications for applying pump traps in closed systems to eliminate problems with stall exist at almost every facility. 

    To learn more click to download the full Armstrong Fluid Handling Understanding and Solving Equipment Stall paper or contact the team at Campbell-Sevey.

  • Flash High-Pressure Condensate to Regenerate Low-Pressure Steam

    Every pound of steam saved is a pound that does not have to be produced by the boiler. That's why recovering flash steam is a great way to reduce energy costs. 

    Flash steam is steam that is created when condensate at a higher pressure and temperature is released to a lower pressure and the condensate cannot exist as a liquid in the new condition. 

    Flash steam can be used for the same purposes as live steam because it has exactly the same latent heat content as boiler steam. If this latent heat is not put to some service, the heat energy that was used to produce it is partially wasted. 

    So how much of a financial impact can saving flash steam make? Here is an example:

    In a plant where the cost of steam is $8.00 per million Btu ($8.00/MMBtu), saturated steam at 150 pounds per-square-inch-gauge (psig) is generated, and a portion of it throttled to supply 30-psig steam. Assuming continuous operation, the annual energy savings of producing low-pressure steam by flashing 5,000 pounds per hour (lb/hr) of 150-psig condensate is $40,924. Over 10 years that's over $400,000 in savings! 

    Determine if Flash Steam Recovery is right for your plant

    Campbell-Sevey can help you determine the potential for high pressure condensate flashing by completing a plant survey that:

    • Identifies all sources of high pressure condensate
    • Determines condensate flow and duration, as well as the heat recovery potential due to flashed steam production
    • Identifies compatible uses for low-pressure steam
    • Estimates the cost effectiveness of installing appropriate heat recovery devices and interconnecting piping

    Click here to download and review Armstrong's complete Flash High-Pressure Condensate to Regenerate Low-Pressure Steam best practices tip, along with suggested actions. 

  • Save on Energy Efficiency with CenterPoint Rebates

    As a top energy Trade Partner Ally for CenterPoint Energy, Campbell-Sevey has been recognized for the energy savings we generate for our customers. By combining their incentive rebates to reduce capital costs with our engineered solutions to maximize efficiency, our customers realize a significant return on investment.

    When working with you, we consider all the ways you can increase your energy efficiency by replacing inefficient equipment with higher-efficiency equipment and taking advantage of CenterPoint Energy's rebates and programs. Here are some of the available rebates to conserve energy across your facility:



    Contact Campbell-Sevey

    To learn more about energy efficiency strategies for your company, or which improvements qualify for energy rebates, contact the team at Campbell-Sevey. We'll work with you to provide solutions with the highest impact and fastest payback.

  • A Message from Steve Graves, Campbell-Sevey's New President

    As many of us grew up, we were told that if you work hard, are dedicated, and strive to do the right thing, good things will happen. In my case, that’s turned out to be true. I’m honored to say that I recently became the President of Campbell-Sevey – only the fourth one in our 80 years history.

    For 15 years I’ve been part of this incredible company that has always been dedicated to doing the right thing and to operating with the utmost integrity. That’s why we don’t have commissioned sales people, why our team collaborates so well, and why we provide solutions in our customers’ best interest, not ours. It’s why we align with only the top manufacturers that make only the best products and stand behind them with steadfast confidence and unsurpassed service.

    Hoyt Sevey, Bob Sevey and Brian Ross all did an amazing job of leading and growing our company to where we are today. My goal is to continue in that tradition, expanding in some key areas:

    • Energy Saving Initiatives – Campbell-Sevey has been named an Xcel Energy “Energy Efficiency Partner” and a CenterPoint Energy “Trade Partner” for the past 3 years in recognition for our work in saving energy. We want to continue to provide our customers with as much energy savings as possible.

    • Increase Industrial Product Offerings – Our company represents the product lines of 22 of the premier manufacturers in the areas of steam, air and water industry. Our goal is to expand our solutions and products from those principals to our industrial base and beyond.

    • Continue to Grow Our Systems Approach – Because we have access to many interconnecting products, we offer complete equipment packages that fill our customers’ needs. We have products from boilers to condensate return and everything in between. When a customer has a need, we look upstream and downstream at the entire design, designing a whole and complete solution to ensure that their immediate and long-term goals are met.

    I am proud and humbled to lead our amazingly talented team of sales and support staff, and to continue to serve our customers. I welcome any ideas you may have on how we can serve you even better. Feel free to contact me directly at 952-240-2013 or send me an email at I’d love to hear from you. 


    Steve Graves

  • Non-Slam Check Valves vs. Swing Check Valves

    New eBook outlines the key differences between Non-Slam and Swing Check Valves

    Check valves are important because they allow fluid to flow in one direction but prevent it from flowing in the other. Two of the more common varieties of check valves are non-slam check valves and swing check valves.

    In this eBook from DFT they discuss the two different types and compare their unique uses and benefits. Additional insights include: 

    • Design configurations
    • Applications
    • Pros and Cons

    Click here to download your copy of Non-Slam Check Valves vs. Swing Check ValvesThen contact the team at Campbell-Sevey to learn how the fit within your system. 


  • QMax Announces New Line of Pre-Insulated Tubing

    QMax has launched their new ViperLine™ Pre-Insulated Tubing to minimize heat loss and provide protection for areas between your manifolds and steam tracing/jacketing.

    The thermally insulated fiberglass material is protected with a flexible flame-resistant PVC jacket and can transfer fluids up to 400°F (204°C) while maintaining an outer jacket temperature of 140°F (60°C). This keeps your system at the temperature you want, while providing personal protection from steam or hot fluids at the same time. QMax ViperLine™ also comes in a variety of materials to meet your needs - all sizes of copper and stainless tubing, multiple colors, and different jacket materials. 

    No other company offers more steam tracing solutions than QMax Industries. From the steam supply manifold to the condensate return manifold, QMax can offer the entire scope of stream tracing including:

    • Steam Supply Manifolds
    • Pre-Insulated Tubing for clean steam transfer
    • Steam Tracing/Jacketing System (most steam tracing systems options of any company from freeze protection to jacketed pipe)
    • Pre-Insulated Tubing for low-pressure loss condensate transfer
    • Condensate Return Manifolds with steam traps designed for steam tracing
    • Steam Tracing Design (supply & return sizing, layout, installation drawings)

    Contact the team at Campbell-Sevey to determine how much energy you can save by integrating QMax into your system.

  • Steam System Management Pays

    Increasing energy costs, CO2 allocations and the desire to remain competitive are just a few of the reasons why many manufacturers are focusing their attention on achieving greater efficiency of their steam systems. Steam traps are one way of driving significant and easily achievable savings. 

    This case study involving a Goodyear Tire and Rubber facility illustrates the benefits of steam trap management. They have performed surveys of their steam system (2,321 steam traps) over the last two consecutive years resulting in over $150,000 in annual savings. In this short time, Goodyear has improved their overall steam trap performance to 92% - meaning that 92% of their trap population is operating correctly and in ‘Good’ condition. If a regular maintenance program is followed, this rate will continue to improve.

    If you are interested in a steam trap survey of your steam system, contact the team at Campbell-Sevey.

  • Minimizing Water Hammer with Wafer-Style Axial Flow Check Valves

    In 2015, a wastewater treatment facility began reviewing alternatives to its existing design in an effort to resolve a water hammer issue and considered the use of wafer style axial flow check valves. Axial flow check valves were considered due to the ability to minimize and/or reduce the effects of water hammer based on the difference between an axial flow and dual disc trim. 

    To understand the improved performance of an axial flow check valve in minimizing water hammer, you must consider the fundamental difference in the trim design. Just as ball valves, globe valves, gate valves, etc. have different flow characteristics, so do check valves. Check valves can be classified into two basic categories, swing checks and axial flow. In the case of axial flow check valves the trim moves parallel to the axis of the flow path. Only non-slam silent check valves are designed this way. 

    A comprehensive case study was put together detailing how the wastewater treatment facility resolved the following hammer problems:

    • Check valve spring failure every 2-3 months
    • Repair and replacement of check valve every 3-4 months
    • Increased routine for tightening loosened flanging due to hydraulic shock in system
    • Retuning of instrumentation due to hydraulic shock in system
    • Loss of capacity due to increased maintenance routine

    Download the case study to learn more about DFT Check Valves or contact the team at Campbell-Sevey.

  • Campbell-Sevey to Split CEMS Service Assets into New Company

    We have a special announcement about some exciting changes happening at Campbell-Sevey to start the new year!

    • Campbell-Sevey will divest our CEMS service assets into a new company called CEMSOURCE.
    • Current Campbell-Sevey President Brian Ross will become President of CEMSOURCE and Bob Bohlken will become Vice President.
    • Our current CEMS service team will transition to CEMSOURCE.
    • Steve Graves will become President of Campbell-Sevey.

    Effective February 1, 2018, Campbell-Sevey will divest its Continuous Emission Measurement System (CEMS) assets and form a new company called CEMSOURCE. This split will allow our company to focus its operations on providing steam, air, and water solutions to our customers, while CEMSOURCE will provide essential emission measurement systems, training, auditing, and maintenance for boiler stack gasses.

    For current CEMS customers, the transition will be seamless. Our current President, Brian Ross, will become President of CEMSOURCE. Brian, who has served as President of Campbell-Sevey since 1998, has over 40 years of experience with CEMS. In addition, our entire CEMS service team will be joining Brian, including Bob Bohlken, who will be Vice-President.

    CEMSOURCE will be located in Wayzata, MN and will be the manufacturer’s representative for Teledyne Monitor Labs, providing the same parts and great service work you’ve come to expect from them.

    Steve Graves will become Campbell-Sevey’s new President (only the 4th in our company’s 80 year history). Steve has served as Campbell-Sevey’s Capital Sales Manager for the past 14 years and, along with the rest of the Campbell-Sevey team, will continue the great tradition of excellence Hoyt Sevey started in 1937.

    Our company represents the product lines of 22 of the premier manufacturers in the areas of steam, air and water industry. We are one of the only companies in the industry to have a non-commissioned sales team to ensure that we always are working in the best interest of our customers. Campbell-Sevey has been named Xcel Energy's “Energy Efficiency Partner” and CenterPoint Energy's “Trade Ally of the Year” for the past 3 years in recognition of our work in saving energy for their largest customers.

    For questions, please contact your Campbell-Sevey sales rep or call us at 952-935-2345. For details about CEMSOURCE, contact Brian Ross at or call 952-234-4590.

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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