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442703/B

Mechanicalsupportbrackets

Together,thegatevalve,transducerdockandhullunitformatallandheavyconstruction.

Duetoitsheightandweight,thisconstructionmustbesecuredtothebulkheadbymeans

ofmechanicalsupportbrackets.Thedimensionsandstrengthofthesupportbrackets

mustbeadequatetopreventvortexinducedvibration.Thisarequirementtoensurethe

safetyoftheST90andthevessel.

Theforcestowhichthegatevalve,

transducerdockandhullunitareexposed

dependsonthephysicalsizeofthe

completeinstallation,whereitislocated,

andthevessel'sbehaviourinroughsea.

Note

Itisveryimportantthattheentire

installationissufcientlysupported,asthe

forcesitisexposedtomayaffectboththe

physicalinstallationandthevessel'ssafety.

Themechanicalsupportbracketsmust

bedesignedandmanufacturedbythe

installationshipyardtotthecomplete

installationinthesonarroom.We

recommendthatsupportbracketsareplaced

pointingatminimumthreedirections

withapproximately120degreesbetween

them.Allcalculationsmadetosupport

thedesignmustmeettheapplicablesafety

requirements,andapplytothephysical

propertiesofthehullandtheinstallation.

Note

Thenaldesignandtheinstallationmust

beapprovedbytheclassicationsociety.

Withoutapropermechanicalsupportfor

thehullunitgantry,theguaranteewillbe

void!

Relatedtopics

InstallingtheoptionalgatevalveDN500,page85

Gatevalveinstallationoverview,page86

InstallingtheoptionalgatevalveDN500

Simrad ST90 Installation Manual

Other manuals for Simrad ST90