Prerequisites
This task must take place in dry dock. The shipyard must provide all necessary tools and manpower. The following specific items are required for this task.
NoteThe gate valve is heavy. Appropriate lifting equipment (lifting tackle, portable crane or ship’s crane) is required. Always use appropriate lifting equipment to minimize risk of personnel injury or equipment damages. Only certified equipment must be used.
It is assumed that the mounting flange has been installed correctly.
Context
Only the basic steps of the task are offered. Additional procedures with more information and/or details must be provided by the installation shipyard to fit the vessel
properties.
The top mating surface of the gate valve must be protected with a wooden cover at all times until the transducer dock is installed. It is very important that this surface is clean and undamaged, because it must be watertight after the transducer dock has
been installed.