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Curve for MMM 06-06-200px
Curve for MMM 06-06-200px

New Pump Efficiency Standards Part 3: Calculating PER Values

RL Deppmann June 13, 2016Efficiency, Pump Efficiency, Monday Morning Minutes, Pumps, U.S. DOE Standards, Selection and Specification, Codes and Standards

Under the DOE’s new efficiency standards for pumps, all Pump Efficiency Rating (PER) values use a full size or maximum impeller for a given pump …

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DOEpump standardsPER Valuespump efficiency
RLD Pump Efficiency Standard
RLD Pump Efficiency Standard

New Pump Efficiency Standard Part 2: The Pump Energy Index (PEI)

RL Deppmann June 6, 2016Monday Morning Minutes, Pumps, U.S. DOE Standards, Selection and Specification, Codes and Standards, Efficiency, Pump Efficiency

Now that the U.S. Department of Energy (DOE) has published the first ever Energy Conservation Standards for Pumps, let’s take a look at some of …

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DOEdepartment of energypump efficiencyUS DOEpumpspeidoe standards
RLD Pump Efficiency Standard
RLD Pump Efficiency Standard

New Pump Efficiency Standards Part 1: They’re Here, Now What?

RL Deppmann May 30, 2016Monday Morning Minutes, Pumps, U.S. DOE Standards, Selection and Specification, Codes and Standards, Efficiency, Pump Efficiency

Heat pumps have them. Air conditioners have them. Even light bulbs have them. And now, for the first time in history, clean water pumps have …

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department of energypump efficiencypumpsNew pump efficiency standardsDOE

Two Secrets for Bell and Gossett GPX Plate Heat Exchangers

Norm Hall May 23, 2016Selection and Specification, Monday Morning Minutes, Heat Exchangers, ASHRAE 90.1, Plate Type, Codes and Standards

Our recent R. L. Deppmann Monday Morning Minutes (MMM) articles have introduced a number of velocity considerations in gasketed plate heat exchangers. This week I’ll share two …

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Heat ExchangersBell and Gossett

What Is the ASME U-1 Stamp and Why Is It Important?

Norm Hall April 11, 2016Monday Morning Minutes, Codes and Standards, ASME

The R. L. Deppmann team frequently mentions the need for an ASME U-1 stamp on heat exchangers, tanks, and air separators. What is the ASME U-1 …

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  • Products
    • Overview
    • Pumps and Accessories
    • Boilers and Water Heaters
      • Water Heater Stock
      • Boiler Stock
    • Hydronic Systems
    • Plumbing Systems
    • Steam and Condensate
    • Variable Frequency Drives (VFDs)
    • Glycol Solutions
    • Snowmelt Designs
  • System Design
    • Overview
    • Project Gallery
    • Selection and Design Tools
  • Water Solutions
  • Contractors
  • Service & Parts
    • Overview
    • Startup and Warranty
    • Parts
    • Service and Maintenance
  • Education
    • Overview
    • Basic Hydronic Blog Articles
    • Training Opportunities
    • Factory Classes
  • About RLD
    • Overview
    • Team Deppmann
    • R.L. Deppmann Locations
    • Careers
    • Community Engagement
    • Press and News