The R. L. Deppmann Monday Morning Minutes will look at near pump piping over the next several weeks. Let’s start by looking at pipe sizing …
R. L. Deppmann Company Introduces Its 5th Leadership Team
R. L. Deppmann announced a “changing of the guard” starting January 1st.
Designing Domestic Hot Water Recirculation Systems: Part 3 Pump Control
In the last R. L. Deppmann Monday Morning Minute we selected a B&G Pump after determining flow rate and pump head. This week we look at …
Designing Domestic Hot Water Recirculation Systems: Part 2 Determining the Pumping Pressure Drop
The purpose of the domestic water recirculation system is to deliver hot water near a fixture during times when there is no draw. If someone …
Designing Domestic Hot Water Recirculation Systems: Part 1 Determining the Flow Rate
This R. L. Deppmann Monday Morning Minutes series will focus on the design of domestic hot water recirculation systems in the plumbing portion of the …
Variable Speed and ECM Smart Pumps in Domestic Hot Water Recirculation Systems
Domestic hot water supply temperatures and the recirculation system control are receiving a great deal of attention these days. Concerns about legionella growth with low-temperature …
Variable Flow in Hydronic Systems with Three-Way Control Valves
Often times, the engineer is replacing the existing secondary pump in a system with a combination of two way and three-way control valves. How do …
R.L. Deppmann – Detroit Area Office and Warehouse Relocation
This Monday Morning Minute is very self-serving. We want everyone to know that the Detroit area office of R. L. Deppmann moved during the month …
What are ECM Pumps & ECM Smart Pumps
Last week, I defined ECM motors and how they differ from standard PSC and induction motors. We recently had a customer call who was very …
What is an ECM Pump? – Part 1
ECM pumps and Smart pumps are marketing terms being thrown around to indicate a highly efficient variable speed pump that saves more money than you …