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API 16C Choke & Bulala ngeendlela ezininzi
Ukukhaba okuphindaphindiweyo sisixhobo esiyimfuneko ukulawula ukukhaba kunye nokuphumeza iteknoloji yokulawula uxinzelelo lweoli kunye negesi yemithombo.Xa isithinteli sokuvuthela sivaliwe, uxinzelelo oluthile lwe-casing lulawulwa ngokuvula kunye nokuvala i-valve ye-throttle ukuze kugcinwe uxinzelelo lomngxuma ongaphantsi luphezulu kancinci kunoxinzelelo lokubumba, ukuze kuthintelwe ulwelo lokubunjwa ukuba lungene kwiqula eliya phambili.Ukongeza, ukuminxeka okuninzi kungasetyenziselwa ukuthomalalisa uxinzelelo lokuqonda ukuvaleka okuthambileyo. Xa uxinzelelo olusequleni lunyuka luye kumda othile, lusetyenziselwa ukuvuthela ukukhusela intloko.Xa uxinzelelo lomthombo lukhula, ulwelo olusemthonjeni lunokukhutshwa ukulawula uxinzelelo lwe-casing ngokuvula nokuvala i-valve ye-throttle (i-manual adjustable, i-hydraulic kunye ne-fixed).Xa uxinzelelo lwe-casing luphezulu kakhulu, luyakwazi ukuvuthela ngokuthe ngqo kwivalve yesango.