When installing a new rotary pump, the...

Question 1 / 270705eccef9bbacbc34ba4d4553d

Question 1 of 270705eccef9bbacbc34ba4d4553d

When installing a new rotary pump, the suction piping should __________.

Question 1 of 27070

When installing a new rotary pump, the suction piping should __________.

🔍 Key Concepts

• Net Positive Suction Head (NPSH) and why suction line losses must be minimized • How pipe diameter affects flow velocity and friction losses on the suction side of a pump • The purpose (and limits) of sloping suction lines toward the pump

💭 Think About

• Think about what a rotary (positive displacement) pump is most sensitive to on the SUCTION side: high friction loss, air leaks, or slight dimensional changes? • If you keep the same flow rate but change suction pipe size, what happens to velocity and friction loss in each choice (same size, larger, smaller)? • Would simply sloping the pipe toward the pump by itself solve the key suction-side problem the question is aiming at, or is something more fundamental about pipe size being tested?

✅ Before You Answer

• Compare how each option affects friction loss and the pump’s ability to get enough liquid (NPSH available) • Ask whether making the pipe smaller than the pump connection could ever be good practice on the suction side • Consider whether slope alone addresses the main design concern for rotary pump suction piping in exam-style best practice questions

Question 1 of 27070

When installing a new rotary pump, the suction piping should __________.

be of the same diameter as the pump suction connection

be at least one size larger than the pump suction connection

be the next size smaller than the pump suction connection

be sloped to the pump

Question 1 / 270705eccef9bbacbc34ba4d4553d

Question 1 of 270705eccef9bbacbc34ba4d4553d

When installing a new rotary pump, the suction piping should __________.

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Question 1 of 27070

When installing a new rotary pump, the suction piping should __________.