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Loss of prime

Connection of pumps to LNG storage tanks should be done in accordance with the pump manufacturer’s recommendations. The pipe connection should be designed with minimal pressure-losses and kept well-insulated to prevent heat leak to the working fluid. Operating conditions should be taken into account in order to prevent vapour-lock conditions from arising bubbles, leading to pump cavitation and loss of prime due to local lowering of cryogenic liquid pressure just below its vapour pressure.

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