Simrad ST90 - Gate Valve Installation Principles

442703/B
91
Gatevalveinstallationprinciples
Thegatevalveisplacedatthebottomofthetransducerdock.Thegatevalvemustbe
mountedsothatitstopmatingsurfaceisinparallelwiththeseasurfaceduringnormal
operatingconditions.
AHoistingmotor
BMotorControlUnit
CGantry
DTransducerdock
ETransducer
FGatevalve
GKnee-plates(stiffeners)
HMountingange
ITransducershaftsleeve
Thegatevalveisboltedtoamounting
angedesignedand/oradaptedtotthe
hullplating.Thetransducerdockisbolted
tothetopofthegatevalve.TwoO-ringsare
usedtomaketheconstructionwater-tight.
Theinstallationshipyardmustadaptthe
mountingangetottheshapeofthe
hull,ordesignandmanufactureacustom
mountingange.Additionalkneeplates
mustbeaddedtothenalconstruction.
Note
Ifrequired,alldocumentsprovidedby
theshipyardforthephysicalinstallationof
theST90mustbeapprovedbythevessel’ s
nationalregistryandcorresponding
maritimeauthorityand/orclassication
society.Suchapprovalmustbeobtained
beforetheinstallationcanbegin.The
shipownerandshipyarddoingthe
installationareresponsibleforobtaining
andpayingforsuchapproval.
ThegatevalveismanufacturedbyLK
Valves.Technicalinformationaboutthis
unitisnotincludedinthisST90InstallationManual.Refertotherelevantend-user
documentationprovidedbythemanufacturer.
InstallingtheoptionalgatevalveDN500