A ivalve yedwasisixhobo esilawula ukuhamba kolwelo okanye igesi ngokuvula okanye ukuvala indinyana esebenzisa i-elektromagneticic coil. I-coil inamandla okanye i-de -}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} Nazi ezinye zezizathu eziqhelekileyo zokuba kutheni i-boonoid ivalves, ngokubanzi, ziyasetyenziswa:
1.
2. Le mpendulo ikhawulezileyo ibaluleke kakhulu kwizicelo apho kuchazwe ukuhamba kwangoko nokuhamba kwangoko kokuhamba kwamanzi kuyimfuneko.
3. ** Utshintsho:
I-4.
5.
6. ** Ukuthembeka:
7. ** Uluhlu olubanzi lwezicelo:
