Section 5 Piping systems
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Special Service Craft, July 2022 - Part 12 Propulsion Devices - Chapter 3 Thrusters - Section 5 Piping systems

Section 5 Piping systems

Parent topic: Chapter 3 Thrusters

5.1 General

5.1.1 The piping system for azimuth thrusters is to comply with the general design requirements given in Pt 15, Ch 1 Piping Design Requirements.

5.1.2 The specific requirements for lubricating/hydraulic oil systems and standby arrangements are given in Pt 15, Ch 3 Machinery Piping Systems.

5.2 Azimuth thruster

5.2.1 The hydraulic power operating systems for each azimuth thruster are to be provided with the following:

  1. arrangements to maintain the cleanliness of the hydraulic fluid, taking into consideration the type and design of the hydraulic system,

  2. a fixed storage tank having sufficient capacity to recharge at least one azimuth power actuating system including the reservoir. The piping from the storage tank is to be permanent and arranged in such a manner as to allow recharging from within the thruster space.

5.2.2 Where the lubricating oil for the azimuth thrusters is circulated under pressure, provision is to be made for the efficient filtration of the oil. The filters are to be capable of being cleaned without stopping the thruster or reducing the supply of filtered oil.

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