ʻO kekahi mau valve maʻamau i hoʻohana ʻia i nā pipeline ʻoihana, ʻoi aku ka nui o ka hoʻohana ʻana i nā ʻāpana pōpō, ʻo ka wai, ka aila, ke kinoea a i ʻole nā pipeline media maʻamau a i ʻole nā kūlana hana koʻikoʻi e loaʻa ana i nā ʻāpana kiʻekiʻe, inā he haʻahaʻa haʻahaʻa, wela kiʻekiʻe, a corrosive paha. kaiapuni, oe Y...
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