Kutheni kufuneka iivalve yokumisaunendawo yokungena ephantsi kunye nendawo ephezulu?
ivalve yokumisa, ekwaziwa ngokuba yivalve yokumisa, yivalve yokutywina ngokunyanzeliswa, luhlobo lwevalve yokumisa. Ngokwendlela yokudibanisa, ihlulwe ibe ziindidi ezintathu: uxhulumaniso lwe-flange, uxhulumaniso lwentambo, kunye nokudibanisa i-welding.
Ivalve yaseTshayina “iSanhua” yakha yachaza ukuba indlela yokuhamba kwevalve yokumisa kufuneka ikhethwe ukusuka phezulu ukuya ezantsi, ngoko kukho indlela eya kuthi xa ufaka.
Olu hlobo lwevalve yokuvala i-valve yokuvala i-valve ifaneleke kakhulu ukubhloka okanye ukulawula kunye nokubethelwa. Ngenxa yokuba ukuvulwa okanye ukuvala i-valve stem yolu hlobo lwevalve lufutshane, kwaye inomsebenzi othembekileyo wokuthintela, kwaye ngenxa yokuba utshintsho lwesigxina sesihlalo sevalve luhambelana ngokuthe ngqo ne-stroke ye-valve disc. ifanelekile kakhulu kulawulo lokuhamba.
Ivalve yokumisa yenzelwe ukungena okuphantsi kunye nokuphuma okuphezulu, injongo kukwenza ukuchasana kokuhamba kuncinci kwaye ugcine umgudu xa uvula ivalve. Xa i-valve ivaliwe, i-gasket phakathi kwe-valve casing kunye ne-valve cover kunye nokupakisha ngeenxa zonke kwi-valve stem ayigxininisi, kwaye umphumo wokungabonakali kuxinzelelo oluphakathi kunye nobushushu ixesha elide unokwandisa ubomi benkonzo kunye nokunciphisa. ukuba nokwenzeka kokuvuza. Ngaphandle koko, ukupakishwa kunokutshintshwa okanye kufakwe xa i-valve ivaliwe, ekulungele ukulungiswa.
Ayizizo zonke iivalvu zeglowubhu ezinendawo yokungena ephantsi kunye nendawo ephezulu yokuphuma. Ngokuqhelekileyo, kunzima ukuvala i-valve xa ukhetha ukungena okuphantsi kunye nokuphuma okuphezulu phantsi kobukhulu obukhulu kunye noxinzelelo oluphezulu. Uxinzelelo lulula ukuguqula kunye nokuguqula, oluchaphazela ukhuseleko kunye nokutywinwa kwevalve; ukuba i-inlet ephezulu kunye nendawo ephantsi ikhethiwe, ububanzi be-valve stem ingaba yincinci, eya kugcina ixabiso elincinci kumenzi kunye nomsebenzisi.
Ixesha lokuposa: Oct-30-2021