🔍 Key Concepts

• Deep well self-priming cargo pumps – how they are installed and how they handle suction and stripping • Operating limits – especially overheating risk and need for liquid in the pump • How use of deep well pumps affects the need for stripping systems on tankers

💭 Think About

• Think about where a deep well pump is located in relation to the cargo tank and how that affects its ability to clear (strip) cargo from the tank bottom. • Consider whether any centrifugal-type pump can safely run without liquid for long periods, and what might happen if it does. • Ask yourself if modern product and crude tankers prefer or avoid deep well pumps, and why that might be the case in cargo operations.

✅ Before You Answer

• Check which option incorrectly describes the popularity/trend of deep well pumps on product and crude tankers. • Check whether statements about no danger from overheating can ever be fully true for this type of pump. • Check if deep well pumps usually reduce or eliminate separate stripping systems and whether loading is always done strictly through the discharge line to the pump.