Which of the materials listed is used as the...

Question 1 / 270705eccef9bbacbc34ba4d45492

Question 1 of 270705eccef9bbacbc34ba4d45492

Which of the materials listed is used as the dynamic seal material on mechanical seals installed on most centrifugal pumps used in water service?

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Question 1 of 27070

Which of the materials listed is used as the dynamic seal material on mechanical seals installed on most centrifugal pumps used in water service?

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🔍 Key Concepts

• Mechanical seal construction on centrifugal pumps (rotating vs stationary faces) • Properties of common seal face materials in water service (soft/self-lubricating vs metallic) • Why dynamic seal surfaces must handle friction, wear, and slight misalignment

💭 Think About

• Think about which material would best tolerate continuous sliding contact with minimal lubrication from water alone. • Which option would reduce scoring and galling if two surfaces are rubbing together at pump shaft speed? • Among the choices, which material is commonly used as a seal face because it is soft, self-lubricating, and can run against a harder mating surface?

✅ Before You Answer

• Identify that the dynamic seal is the part that is in continuous relative motion, not the stationary housing. • Eliminate materials that are primarily structural metals and more likely to gall or corrode in sliding contact in water service. • Confirm which listed material is well known in industry as a common mechanical seal face for water pumps.

Question 1 of 27070

Which of the materials listed is used as the dynamic seal material on mechanical seals installed on most centrifugal pumps used in water service?

Copper and carbon.

Copper.

Carbon.

Bronze.

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