The State of Ohio elevator codes leaves the solution of pumped hydraulic oil and water to the design engineer. Our updated R. L. Deppmann plumbing …
Hydraulic Elevator Sump Pumps in Michigan –Meeting the Code
The State of Michigan is very specific in codes regarding sump pumps located in hydraulic elevators. Our latest and updated R. L. Deppmann Plumbing website …
Sump & Sewage Pump Design Calculations: Pump Head for Building Services
Today we want to help you in determining the pump head for sump and sewage applications. Simple or not, it is good to review the …
Sump and Sewage Pump Design Calculations – Old Pipe or New Pipe in Head Calculations
Today, the R. L. Deppmann Company Monday Morning Minutes starts a series of articles on sump and sewage system sizing tips. The pump head calculations …
Tired of Water Quality Issues with Cooling Tower Basins?
What’s lurking in your traditional open cooling tower basin? Today, there is a growing concern about the sediment build-up, algae growth, and bacteria growth in …
Primary – Secondary Sediment Separator Piping in Variable Flow Cooling Tower/Condenser Water Systems
The last R. L. Deppmann Monday Morning Minutes offered suggestions for the use of a Griswold sediment separator in a variable flow tower system. The …
Sediment Separators in Variable Flow Cooling Tower/Condenser Water Systems
A sediment separator will remove particles down to 20 microns or lower when properly sized and applied. This makes them a great choice in open …
Variable Speed Pump Control – More Detailed Curve and Area Control
Curve control, Area control, Sensorless control, Remote DP sensor control. Local sensor control: the shopping cart of speed pump controls can get overwhelming. We just …
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 …
HVAC Hydronic System: Parallel Pumps and Cost
Reduced cost is often viewed as the reason parallel pumping exists as a design option for engineers. In today’s hydronic heating and cooling systems, we …