In the illustration, the item labeled as...

Question 1 of 270705eccef9bbacbc34ba4d45451

In the illustration, the item labeled as '30' is __________. used to prime the pump at start-up to supply sealing water to the stuffing box See illustration GS-0012.

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Question 1 of 27070

In the illustration, the item labeled as '30' is __________. used to prime the pump at start-up to supply sealing water to the stuffing box See illustration GS-0012.

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🔍 Key Concepts

• Review the parts list for item 30 in illustration GS-0012 and note its description and location on the pump casing. • Understand how sealing water is normally supplied to a stuffing box/packing on a centrifugal pump (external source vs. internal recirculation). • Consider the difference between a priming/vent connection and a seal water connection on a pump.

💭 Think About

• Trace where item 30 connects on the pump: does it lead into the stuffing box area, the suction side, or the discharge side? • Ask yourself whether a small pipe in that position would more likely be used for venting/priming the casing or for continuously supplying sealing water to the packing. • Compare item 30 with any other small connections shown (like vents or plugs): which one is positioned to actually flood the pump for start-up?

✅ Before You Answer

• Verify the exact name/description given for item 30 in the table (e.g., pipe, vent, seal line, etc.). • Confirm whether the flow path from item 30 would actually deliver water directly to the stuffing box/packing rings or mainly to the pump casing/volute. • Check if there is a separate connection identified for sealing water or venting; if so, decide which statements (I and/or II) correctly match item 30’s real function.