He kūpono ke kīpē ʻīpuka pahi no ka ʻōpala a me ka pipeline waena i loaʻa i ka fiber, a hiki i kāna pā kīpē ke ʻoki i ka mea fiber ma waena;Hoʻohana nui ʻia ia i ka lawe ʻana i ka slurry lanahu, mineral pulp a me ka papermaking slag slurry pipeline.ʻO ke kīpē puka pahi ka derivative o ka valve puka, a loaʻa iā ia nā pono kūikawā a me nā hemahema.2. ʻO keʻano maʻalahi, ka leo liʻiliʻi, ke kaumaha māmā a me ka hoʻokomo pono.ʻO nā hemahema o ka ʻīpuka puka pahi: hiki ke hoʻohana wale ʻia i ka pipeline haʻahaʻa haʻahaʻa.Hoʻohana nui ʻia ʻo Knife gate valve i ka pipeline slurry, hiki ke ʻōlelo ʻia he valve kūikawā no ka pipeline slurry.