He kūpono ka valve puka pahi no ka pipeline lepo a me ka waena i loaʻa ka fiber, a hiki i kāna papa valve ke ʻoki i ka mea fiber i ka medium; hoʻohana nui ʻia ia i ka lawe ʻana i ka slurry lanahu, ka pulp mineral a me ka pipeline slurry slag hana pepa. ʻO ka valve puka pahi ka hopena o ka valve puka, a he mau pono kūikawā a me nā hemahema.1, ʻO ia ka huahana valve makemake ʻia no ka slurry, slurry a me ka pulp pipeline. 2. ʻO ke ʻano maʻalahi, ka liʻiliʻi o ka nui, ke kaumaha māmā a me ka hoʻonohonoho pono ʻana. Nā hemahema o ka valve puka pahi: hiki ke hoʻohana wale ʻia i ka pipeline haʻahaʻa haʻahaʻa. Hoʻohana nui ʻia ka valve puka pahi i ka pipeline slurry, hiki ke ʻōlelo ʻia he valve kūikawā no ka pipeline slurry.