• Blog
  • Locate a Wholesaler
  • Careers
  • Contact
R. L. Deppmann Logo
  • 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
hydronic pump
hydronic pump

Create a New Variable Speed Pump Control Curve after Hydronic Balancing

RL Deppmann April 14, 2025Pumps, Variable Speed, Commissioning and Balance, Commissioning and Balance, Pumps, Monday Morning Minutes

This week, the R. L. Deppmann Monday Morning Minutes will explain how to show multiple speeds on a pump curve and how to determine what …

Read More
Pumpsvariable speedmonday morning minutescommissioning and balance
hydronic pump
hydronic pump

Hydronic Pump Balance Using the Variable Speed Drive (VFD) with No Balance Valve on Pump

RL Deppmann April 7, 2025Monday Morning Minutes, Pumps, Variable Speed, Commissioning and Balance, Commissioning and Balance, Pumps

When there is no hydronic pump discharge balance valve, the variable frequency drive (VFD) is an important part of the balance procedure. How does the …

Read More
Pumpsvariable speedmonday morning minutescommissioning and balance

Hydronic Pump Balance using the Variable Speed Drive (VFD) with Assistance from a Triple Duty Valve

RL Deppmann March 31, 2025Monday Morning Minutes, Pumps, Variable Speed, Commissioning and Balance, Commissioning and Balance, Pumps

Most centrifugal pumps in heating and cooling systems have some oversizing in the head calculation. Once the HVAC hydronic system is proportionally balanced per ASHRAE …

Read More
Pumpsvariable speedmonday morning minutescommissioning and balance
centrifugal pump readout
centrifugal pump readout

Centrifugal Pump Readout for Contractors

RL Deppmann July 22, 2024Commissioning and Balance, Pumps, Test and Balance, Pumps, Troubleshooting, Pumps, Monday Morning Minutes, Pumps, Balancing & Readout

The proper readout of a centrifugal pump in a hydronic system is important. Pump readout will determine the head pressure the pump is developing which …

Read More
commissioning and balancePumpstest and balancebalancing & readoutmonday morning minutes

Centrifugal Pumps: Determining Flow Rate Using Amp Readings

Norm Hall January 23, 2023Pumps, Commissioning and Balance, Commissioning and Balance, Pumps, Monday Morning Minutes, Motors

We understand that the best way to determine the flow rate of an operating pump is the proper readout of gauges attached to the pump …

Read More
centrifugal pumpsamp readingsflow ratepumps
Happy New Year from R.L. Deppmann
Happy New Year from R.L. Deppmann

Net Positive Suction Head (NPSH) Part 5 of 5 – Good Cooling Tower Pump Piping Practice

Norm Hall January 4, 2021Pumps, NPSH, Commissioning and Balance, Pumps, Cooling Towers, Pumps, NPSH, Monday Morning Minutes

Happy New Year 2021! I pray that we all have a healthy year and see the return of normal lifestyles. This final blog in this …

Read More

Net Positive Suction Head (NPSH) Part 4 of 5 – Gauge Readings

Norm Hall December 28, 2020NPSH, Monday Morning Minutes, Pumps, NPSH, Commissioning and Balance, Pumps, Cooling Towers, Pumps

The cooling tower pump calculations are completed, the project is bid, the Bell & Gossett pumps scheduled are awarded and installed. There is a noise …

Read More

Net Positive Suction Head (NPSH) Part 3 of 5 –NPSH Available

Norm Hall December 21, 2020Monday Morning Minutes, Pumps, NPSH, Commissioning and Balance, Pumps, Cooling Towers, Pumps, NPSH

The available cooling tower pump NPSH or net positive suction head is a function of the pan elevation, friction, and temperature. Sometimes the combination of …

Read More

Net Positive Suction Head (NPSH) Part 2 of 5 –Safety Factors

Norm Hall December 14, 2020Pumps, Cooling Towers, Pumps, NPSH, Monday Morning Minutes, Pumps, NPSH, Commissioning and Balance

The Hydraulic Institute (HI) is a global authority on pumps and pumping systems. Think of them as the ASHRAE of pump design and testing. HI, …

Read More

Net Positive Suction Head (NPSH) Part 1 of 5 – Terms and Definitions

Norm Hall December 7, 2020Pumps, NPSH, Commissioning and Balance, Pumps, Cooling Towers, Pumps, NPSH, Monday Morning Minutes

One of the most misunderstood concepts in pump selection for hydronic design is the net positive suction head or NPSH. Problems with NPSH can spell …

Read More
  • Page 1 of 2
  • 1
  • 2
  • →

About Us

Providing quality products and outstanding service to customers in Northern Ohio & Michigan since 1927.
ImageImage

Call Us: 800.589.6120

Navigation

  • Products
  • System Design
  • Contractors
  • Service & Parts
  • Education
  • About RLD
  • Careers

Connect

Connect with us on LinkedIn
Subscribe on YouTube
Cleveland | Detroit | Grand Rapids | Saginaw
Copyright ©2017 R.L. Deppmann. All Rights Reserved
  • 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