Marine corrugated expansion joints are mainly used on ships and ships. The displacement compensation components used in the shipbuilding industry are corrugated expansion joints with compact structure, good sealing performance and easy installation, and their application fields are very wide.

  Marine corrugated expansion joint is a key component of marine main engine piping system. This kind of corrugated pipe (also known as expansion joint) is characterized by compact structure, excellent flexibility, reliable sealing, high temperature resistance and corrosion resistance. It can not only absorb thermal displacement, mechanical displacement, but also eliminate mechanical vibration, reduce noise, etc. At present, it is not only used in marine diesel engine turbocharger, intake and exhaust, condensate, oil and gas pipelines, but also widely used in metallurgy, petrochemical, hydropower, thermal power, nuclear power, heat network, shipbuilding, aerospace and machinery industries Department's heat pipelines, process piping, pumps and pressure vessels and other equipment.

  Marine expansion joints must meet three requirements: (1) The displacement changes caused by thermal expansion and contraction, mechanical vibration, and the unique displacement changes caused by the deformation of the hull caused by the influence of wind and waves. ②High temperature resistance, seawater corrosion resistance. ③In order to ensure the safety of navigation, it is necessary to ensure that the expansion joint has a high fatigue life.