pump discharge
pump discharge

Hydronic Centrifugal Pumps – Open & Closed System Discharge Piping

RL DeppmannTriple Duty, Valves, Pumps, Triple Duty, Piping and Installation, Valves, Monday Morning Minutes, Check Valves, Commissioning and Balance, Hydronic System Design, Pipe Sizing

The pump discharge is the most turbulent location in a hydronic system. There are simple rules to follow when piping up a pump discharge. Today, …

Where Cavitation Begins – Cooling Tower Pumps and Piping

Norm HallPiping and Pumps, Monday Morning Minutes, Cooling, Cooling Towers, Pumps, Cooling Towers, Hydronic System Design, Cooling Towers

Last week the R. L. Deppmann Monday Morning Minute defined NPSHR, and ended with the Hydraulic Institute (HI) definition as the absolute pressure that will cause the total head of the pump to be reduced by 3%, due to flow blockage from cavitation”. Of importance is the fact that it does not say that NPSHR is where cavitation begins.