600Lb Casting Floating Ball Valve With Worm Gear For Water Conservancy DN25-DN100 - Product
Place of Origin : Wenzhou,China
Delivery Time : 35days
Product Description
600Lb Casting Floating Ball Valve With Worm Gear For Water Conservancy DN25-DN100
QuickDetail:
Size&Pressure:150#DN25-DN250
300#DN25-DN250
600#DN25-DN100
Description:
CASTFLOATINGBALLVALVE
1.Bow-outproofstem
Forthepurposeofpreventingthestemfromflyingoffresultinginabnormalrisingoftheinner
pressureofvalve,shoulderisfixedatthelowerpartofthestem.Inaddition,inordertoprevent
leakageresultingfromburnoutofpackingsetofthesteminafire,thrustbearingisse
Physical Specification
Other Specification :
600Lb Casting Floating Ball Valve With Worm Gear For Water Conservancy DN25-DN100
QuickDetail:
Size&Pressure:150#DN25-DN250
300#DN25-DN250
600#DN25-DN100
Description:
CASTFLOATINGBALLVALVE
1.Bow-outproofstem
Forthepurposeofpreventingthestemfromflyingoffresultinginabnormalrisingoftheinner
Pressureofvalve,shoulderisfixedatthelowerpartofthestem.Inaddition,inordertoprevent
Leakageresultingfromburnoutofpackingsetofthesteminafire,thrustbearingissetatthe
Contactpositionoftheshoulderatlowerpartofthestemandvalvebody.Thusaninverseseal
Seatisformedwhichwillpreventleakageandavoidaccident.
2.Keylock
Lockscanbeusedtolockthemanualvalvewhenitisfullyopenorclosedsoastoprevent
Non-workingpersonnelfrompullingthehandlewhichmayresultinmisoperationofvalve.It
Canalsoavoidopeningorclosingofvalveresultingfromtheshockfrompipelinesorunpredictable
Factorsthatmaycauseanaccident.Forworkingpipelinessuchascombustibleandexplosiveoil,
Gasandchemicalmedium,orforfieldpipingsite,thelockingmechanismisespeciallyuseful.
3.Anti-firesafedesign
Whenthetrunnionballvalvebeusednormally,itssealedbyseatandballsurface,seatretainer
SealedbyO-ringandbody,thisissoftsealedandreliablesealing.WhentheseatandO-ringare
Burnt,theseatretainerandbodywillbesealedbyexpandedgraphite.Thusactanti-firesafepurpose.
4.Anti-staticdevice
Inordertopreventfrictionamongball,stemandPTFEthatgeneratesstaticelectricitywhichmay
Lightthecombustiblesandexplosivesthatcauseanaccident,inthisballvalve,static-conduction
Springissetbetweenthestemandtheball,thestemandthebody.Thusstaticelectricityisconducted
Togroundandsystemsafetyissecured.
5.Lowtorqueinoperation
Theself-lubricatedbearingsareinstalledatthefrictionofstem,resultinginwearresistance,fiexibility
Ofoperationandlowtorque.
6.Automaticbodycavityrelief
