I nā ʻōnaehana pipeline ʻoihana, pāʻani nā valves i kahi kuleana koʻikoʻi. Ma ke ʻano he ʻano maʻamau, hoʻohana nui ʻia nā pahu wafer butterfly i nā ʻoihana he nui e like me ka mālama wai, ka ʻoihana kemika, ka ʻaila, a me ka uila ma muli o ko lākou ʻano paʻa, hana maʻalahi, a me ke kumu kūʻai haʻahaʻa. Ma ke ʻano he ʻāina i hoʻomohala ʻia i ka ʻoihana, ua makemake ʻia ka wafer butterfly valves i hana ʻia ma laila e ka mākeke no ko lākou kūlana kiʻekiʻe a me ka hilinaʻi.