Circulator series pumps are those small inline pumps that have fixed impeller choices with no impeller trimming available. When these pumps have ECM technology, the …
Hydronic System Pump Selection: Flat vs. Steep Curves
An engineer in Michigan called about a large project with several pumps being selected in parallel for a plant chilled water system. He commented that …
HVAC Hydronic System: Parallel Pumping Specifications
OK. I get it! Parallel pumping is a design technique I should review on most of my projects where first cost and energy cost are …
The Department of Energy (DOE) Pump Standards – Now is the Time to Choose
The Department of Energy (DOE) pump standards goes into effect on January 27, 2020. This affects projects you are sending out to bid right now! …
Double Suction Pump Specification: Pump Efficiency (Bonus: Pro Tip!)
This being the last article in this series, I turn your attention to double suction pump efficiency. I will also share some information on pump …
Double Suction Pump Specification: Coupler & Bases
Today, we turn our attention to the parts of a double suction pump you can see when you walk by it; the coupler, the base, …
Double Suction Pump Specification: Rotating Pump Elements
We continue to examine the double suction pump specification for HVAC and hydronic systems. Your specification may have a paragraph or two about the shaft, …
Double Suction Pump Specification: Mechanical Seals
How do you match the mechanical seal specification of double suction pumps with the scheduled base bid manufacturer and allow other names in the spec? …
Bell & Gossett Hits One Out of the Park with their New Double Suction Pump
The 2019 MLB season will be starting soon and it is fitting to announce a home run by Bell & Gossett (B&G). They did it …
Department of Energy Pump Standards – Modify Your Specification
The Department of Energy (DOE) Standards for centrifugal pumps will start to affect construction projects that you are designing today. These standards for minimum pump …