TPL calculation: which is NOT included?

TPL calculation: which is NOT included?

• A. Nozzle pressure loss
• B. Friction loss in hoses
• C. Elevation losses
• D. Pump pressure loss

Answer: (D)

Total Pressure Loss represents the pressure consumed as water travels from the pump discharge to the nozzle, including friction losses in hoses and any elevation changes the water must overcome, plus the pressure required at the nozzle to achieve the desired flow. The pump’s own internal pressure losses aren’t part of this external loss tally; those are handled via the pump’s performance curve and the discharge pressure the pump must produce. So the element not included in the TPL calculation is the pump’s internal pressure loss.

Total Pressure Loss represents the pressure consumed as water travels from the pump discharge to the nozzle, including friction losses in hoses and any elevation changes the water must overcome, plus the pressure required at the nozzle to achieve the desired flow. The pump’s own internal pressure losses aren’t part of this external loss tally; those are handled via the pump’s performance curve and the discharge pressure the pump must produce. So the element not included in the TPL calculation is the pump’s internal pressure loss.