Durum est sigillum 1.The
papilio valvaepari utrimque signum media materia sunt vel metallo suas materias. Sigillum habet quod difficile resistentia caliditas, et bonum lapsum resistentia mechanica proprietatibus.
Mollis et sigillum, quod modo par est una parte cione facta est metallum de materia ac partibus constans ex altera parte non-metallum quod est materia. Quod est bonum sealing perficientur sigillum mollis, sed non repugnant ad altum temperaturis et securus esse vestitos.
2. difference in structuram:
soft-sealed papilio valvaes are mostly centerline. Hard seals are mostly single eccentric, double eccentric, triple eccentric papilio valvaes.
3. sigillum mollis est normalis temperatus in environment. Humilis temperatus difficile in sigillum esse potest, normalis temperatus, temperatus et summus ambitibus.
4.As a component used to realize flow control in pipeline systems, hard-sealed papilio valvaes have been widely used in many fields such as petroleum, chemical industry, metallurgy, and hydropower.
Hard-sealed papilio valvaes are mostly used in heating, gas, gas, oil, acid and alkali environments.