Section 11 Dock gate seals
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Construction and Classification of Floating Docks and Dock Gates, July 2022 - Part 2 Rules for construction - Chapter 2 Structures – Dock Gates - Section 11 Dock gate seals

Section 11 Dock gate seals

Parent topic: Chapter 2 Structures – Dock Gates

11.1 General

11.1.1 The seal material is to be durable and resistant to degradation from the natural environment and from marine flora and fauna.

11.1.2 The seal attachment is to be designed to facilitate replacement.

11.1.3 Where rubber seals are adopted, corrosion resistant nickel copper alloys are to be used. The studs are to have a service life comparable to the rubber seal. Alloy studs are to be suitably protected from galvanic corrosion. Robust fixing is required to prevent seal detachment during undocking. Rubber seals shall be bedded in an elastomeric adhesive which is spread continuously over all of the supporting surface.

11.1.4 Where timber is used, it shall comply with a recognised national or international standard. Greenheart is recommended for use in dock gates. Where used in short lengths particular attention is to be paid to scarf details. Machining of the timber will be required to achieve straightness and a suitable surface finish. The timbers are to be bedded in flexible material to achieve the required tolerance.

11.1.5 The accuracy of fit between the seals and the slots is excluded from the scope of classification.

11.1.6 The leakage performance of the sealing arrangement is excluded from the scope of classification, however, an acceptable level of leakage is to be agreed with the dockyard Operator and recorded in the operational data for the dock gate.

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