Daim ntawv thov
● Santary butterfy valve, tuaj yeem siv rau hauv cov khoom siv tes no valve ntau yam kev siv suav nrog kev ua zaub mov thiab dej haus, kev lag luam tshuaj thiab tshuaj lom neeg thiab lwm yam pelds.
● Ua tiav los ntawm lub valve chamber tsim tsis tsim tawm Buid tsis kam, yog li lub valve yog qhov zoo tshaj plaws xaiv rau kev tuav cov viscous Buids lossis cov teeb meem me me.