I recently visited a school mechanical room and was asked about the relationship between the makeup pressure reducing valve setting and the expansion tank pressure …
B&G Variable Speed Pressure Boosters and Tanks
Here we go again! We are starting to hear about salespeople for a competitive brand of variable speed pressure boosters advising engineers that their system …
Water Heater Thermal Expansion Tank Sizing Safety Factors
In the last R. L. Deppmann Monday Morning Minutes we used the Bell & Gossett Systemwize selection program to size and select a water heater …
Thermal Expansion Tank Sizing: Bell & Gossett Systemwize
In the last R. L. Deppmann Monday Morning Minute we covered some thoughts on the use of code vs. non-code hot water expansion tanks. Why …
Thermal Expansion Tanks: When is the ASME Label Required?
One of the more frequent questions we are asked has to do with ASME label requirements for the thermal expansion tank on water heaters. When …
Medium and High Pressure Steam Vented Flash Tank Trim: Part 2
Steam flash tanks provide a valuable service in medium and high-pressure condensate return systems. The last R. L. Deppmann Monday Morning Minutes (MMM) article described …
Medium and High Pressure Steam Vented Flash Tank Trim
The last R. L. Deppmann Monday Morning Minutes (MMM) article described the difference between horizontal and vertical high-pressure condensate flash tanks. Once a decision is …
Medium and High Pressure Steam Flash Tank Selection
The last several R. L. Deppmann Monday Morning Minutes articles focused on steam and condensate handling. Condensate flashes into steam in the return lines after …
Acceptance Volume vs. Usable Volume in a Hydro-pneumatic Expansion Tank
This week our R. L. Deppmann Monday Morning Minute article answers a question about acceptance volume vs. usable volume in a hydro-pneumatic expansion tank. I recently …
Hydropneumatic Tanks for Variable Speed Pressure Boosters, Part 4
In the last three RLD Monday Morning Minutes, I made the case for a pre-pressurized tank in variable-speed pressure booster systems. Today, let’s look at …