Installing the hydraulic units
If a hydraulic system has been chosen to control the gate valve operation, additional units must be installed.
Prerequisites
You must be equipped with a standard set of tools. This tool set must comprise the normal tools for mechanical tasks. This includes different screwdriver types, pliers, adjustable spanners, etc. Each tool must be provided in various sizes. We recommend that all tools are demagnetized to protect your equipment. Depending on the tasks at hand, additional tools may be required.
Context
On a manually operated gate valve, a wheel is used to open and close the valve. The wheel is fitted on gate valve, which means that you need to go down to the bottom of the vessel to operate it. On a hydraulic operated gate valve, the control wheel is replaced with a hydraulic motor. The hydraulic system comprises the following units:
•  Hydraulic Power Pack
The Hydraulic Power Pack provides the oil pressure for the hydraulic motor on the gate valve.
•  Gate Valve Control Unit
The Gate Valve Control Unit provides local control of the Hydraulic Power Pack. It contains controllers to operate the entire gate valve system.
•  Remote Control Unit  (Optional)
The Remote Control Unit allows you to operate the gate valve from another position on the vessel. The Remote Control Unit is normally placed on the bridge.
A control cable connects the hydraulic gate valve and the Gate Valve Control Unit to the Motor Control Unit.
The gate valve and the hydraulic units are manufactured by Meson. Refer to the relevant end-user documentation provided by the manufacturer.
Procedure
1 Prepare the location and the necessary tools.
2 Observe the installation requirements.
3 Make sure that the chosen location meets the installation requirements.
4 For more information, refer to the end-user documentation provided by the manufacturer.