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centrifugal pump readout
centrifugal pump readout

Centrifugal Pump Readout for Contractors

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

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 …

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commissioning and balancePumpstest and balancebalancing & readoutmonday morning minutes

Flow Meter and Balance Valve Installation – Minimum Pipe Diameters for Installation

Norm Hall October 12, 2020Flow Meters, Monday Morning Minutes, Valves, Flow Meters, Test and Balance, Circuit Setters

The installation of hydronic and steam flow meters often involves a term simply stated as “minimum pipe diameters.” You may hear that a meter or …

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Circuit Setter Balance and Flow Meter Sizing and Turndown
Circuit Setter Balance and Flow Meter Sizing and Turndown

Circuit Setter Balance Valve and Flow Meter Sizing and Turndown

Norm Hall October 5, 2020Valves, Flow Meters, Test and Balance, Circuit Setters, Flow Meters, Monday Morning Minutes

We recently received an email from an engineer in Western Michigan concerning a low-flow, high-head pump process application and the proper balance valve specification. This …

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Energy Savings Using Variable Speed Water Pumps on Constant Flow Condensers

Norm Hall August 30, 2020Monday Morning Minutes, Valves, Cooling Towers, Piping and Pumps, Test and Balance, Pumps, Variable Speed, Triple Duty

When using multiple parallel condensers with constant speed pumps, the flow rate at part load may be excessive and problematic. Our last blog on this …

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Multiple Condenser Cooling Tower Pumps – “Solutions for Excessive Flow”

Norm Hall August 24, 2020Variable Speed, Triple Duty, Monday Morning Minutes, Valves, Cooling Towers, Piping and Pumps, Test and Balance, Pumps

The design and flow balance in systems with multiple parallel condensers is straight forward. We should expect no issues at full capacity. What happens when …

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Balancing Constant Speed Cooling Tower Pumps with Multiple Condensers

Norm Hall August 10, 2020Piping and Pumps, Test and Balance, Pumps, Variable Speed, Triple Duty, Monday Morning Minutes, Valves, Cooling Towers

It is important to check the single pump operation when balancing parallel pumps for multiple constant speed cooling tower pumps. The condensers and pumps are …

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Selecting Constant Speed Cooling Tower Pumps & Balance Valves with Multiple Condensers

Norm Hall August 3, 2020Valves, Cooling Towers, Piping and Pumps, Test and Balance, Pumps, Variable Speed, Triple Duty, Monday Morning Minutes

It is important to check the single pump operation when selecting parallel pumps for multiple constant speed cooling tower pumps. In the last R. L. …

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Bell & Gossett Triple Duty Valve
Bell & Gossett Triple Duty Valve

Constant Flow Cooling Tower Pumps & Variable Frequency Drives (VFD)

Norm Hall July 27, 2020Monday Morning Minutes, Valves, Cooling Towers, Piping and Pumps, Test and Balance, Pumps, Variable Speed, Triple Duty

The blistering hot weather here in southeast Michigan caused me to turn my attention to cooling tower pumps and their control. Cooling tower pump control …

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Hydronic Pump Impeller
Hydronic Pump Impeller

HVAC Hydronic Pumps – Should I Trim the Impeller or Trim with Speed? (Part 2 of 2)

Norm Hall December 9, 2019Test and Balance, Pumps, Monday Morning Minutes, Pumps, Variable Speed, Commissioning and Balance

In the last R. L. Deppmann Monday Morning Minutes, I offered a couple of reasons why an engineer would schedule a larger impeller than needed …

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Hydronic Pump Impeller
Hydronic Pump Impeller

HVAC Hydronic Pumps – Should I Trim the Impeller or Trim with Speed? (Part 1 of 2)

Norm Hall December 2, 2019Monday Morning Minutes, Pumps, Variable Speed, Commissioning and Balance, Test and Balance, Pumps

Engineers schedule a pump capacity in GPM and head along with the horsepower. The pump manufacturer traditionally trims the impeller from the maximum size, also …

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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