1 Nā mea nui no ke koho ʻana i ka valve

1.1 E wehewehe i ke kumu o ka valve i loko o ka lako a i ʻole ka mea hana

E hoʻoholo i nā kūlana hana o ka valve: ke ʻano o ke ʻano o ka mea pili, ke kaomi hana, ka mahana hana a me nā ʻano hoʻokele hana, etc.;

1.2 Ke koho pololei o ke ʻano valve

ʻO ka mea e pono ai no ke koho pololei ʻana i ke ʻano valve ʻo ia ka mea hoʻolālā e hoʻomaopopo piha i ke kaʻina hana holoʻokoʻa a me nā kūlana hana.Ke koho nā mea hoʻolālā i nā ʻano valve, pono lākou e hoʻomaopopo mua i nā ʻano hana a me ka hana o kēlā me kēia valve;

1.3 E hoʻoholo i ke ala hoʻopau valve

Ma waena o nā pilina pili, nā pili flange, a me nā pili hope welded, ʻo nā mea mua ʻelua ka mea maʻamau.ʻO nā kiwi kaulaʻO ka nui o nā valve me ke anawaena inoa ma lalo o 50mm.Inā nui ka anawaena, e paʻakikī loa ka hoʻokomo ʻana a hoʻopaʻa i ka pilina.ʻOi aku ka maʻalahi o ka hoʻouka ʻana a me ka wehe ʻana i nā kiwi hoʻohui flange, akā ʻoi aku ka nui a ʻoi aku ka pipiʻi ma mua o nā kiwi wili, no laila kūpono lākou i nā pilina paipu o nā anawaena paipu like ʻole a me nā kaomi.Ua kūpono nā pilina welded no nā kūlana ukana kaumaha a ʻoi aku ka hilinaʻi ma mua o nā pili flange.Eia nō naʻe, paʻakikī ka wehe ʻana a hoʻokomo hou i nā valve welded, no laila ua kaupalena ʻia kā lākou hoʻohana ʻana i nā kūlana kahi e hiki ai iā lākou ke hana me ka hilinaʻi no ka manawa lōʻihi, a i ʻole kahi paʻakikī o nā kūlana hana a kiʻekiʻe ka mahana;

1.4 Ke koho ʻana i nā mea valve

Ke koho ʻana i nā mea no ka hale valve, nā ʻāpana o loko a me nā ʻāpana hoʻopaʻa ʻana, me ka noʻonoʻo ʻana i nā waiwai kino (ka wela, ke kaomi) a me nā waiwai kemika (corrosiveness) o ke ʻano hana, ka maʻemaʻe o ka waena (ke alo a i ʻole ka ʻole o nā ʻāpana paʻa. ) pono e noʻonoʻo pono e noʻonoʻo ʻia.Eia kekahi, pono ʻoe e nānā i nā lula pili o ka ʻāina a me ka ʻoihana mea hoʻohana.ʻO ke koho pololei a kūpono o nā mea valve hiki ke hōʻoia i ke ola lawelawe ʻoi aku ka maikaʻi a me ka hana maikaʻi loa o ka valve.ʻO ke kaʻina koho o ke kino valve he: hoʻolei ʻia ka hao-carbon steel-stainless steel, a ʻo ke apo sealing material sequence koho ʻia: rubber-copper-alloy steel-F4;

1.5 Nā mea ʻē aʻe

Eia kekahi, pono e hoʻoholo ʻia ke kahe kahe a me ke kiʻekiʻe o ke kaomi o ka wai e kahe ana i loko o ka valve a koho ʻia ka valve kūpono me ka hoʻohana ʻana i ka ʻike i loaʻa (e like me nā papa inoa huahana valve, nā huahana valve, etc.).

2 Hoʻolauna i nā kiwi hoʻohana maʻamau

Nui nā ʻano kīwila, ʻo ia hoʻi nā ʻīpuka puka, nā kīwaha honua, nā kīwī throttle, nā kīwaha butterfly, nā kīwaha plug, nā kīwī pōpō, nā kīwī uila, nā kīwī diaphragm, nā kiwi hoʻopaʻa, nā kiwi palekana, nā kiwi hoʻohaʻahaʻa hoʻohaʻahaʻa, nā pahele a me nā kiwi hoʻopaʻa pilikia. ma waena o ia mau mea i hoʻohana maʻamau ʻia Aia nā ʻīpuka puka, nā kīwaha honua, nā kīwī throttle, nā kīwaha plug, nā kīwaha butterfly, nā kīwī pōleʻa, nā kiwi nānā, nā kiwi diaphragm, etc.

2.1Puka puka

ʻO ka valve puka e pili ana i ka valve nona ka wehe a pani ʻana i ke kino (valve plate) i hoʻokele ʻia e ke kumu valve a neʻe i luna a i lalo ma ka ʻili hoʻopaʻa o ka noho kiwi e hoʻopili a ʻoki ʻia ke kahawai wai.Ke hoʻohālikelike ʻia me nā valve hoʻomaha, ʻoi aku ka maikaʻi o ka hoʻopaʻa ʻana o nā ʻīpuka puka, ʻoi aku ka liʻiliʻi o ka wai, ka liʻiliʻi o ka hoʻoikaika ʻana e wehe a pani, a loaʻa kekahi hana hoʻoponopono.ʻO lākou kekahi o nā pahu hoʻomaha i hoʻohana pinepine ʻia.ʻO ka hemahema, ʻoi aku ka nui o ka nui a ʻoi aku ka paʻakikī o ke ʻano ma mua o ka pahu pani.He maʻalahi ke aahu a paʻakikī ka mālama ʻana i ka ʻili o ka sila, no laila ʻaʻole kūpono ia no ka throttling.E like me ke kūlana o ke kaula ma ke kumu valve o ka valve puka, ua hoʻokaʻawale ʻia i ʻelua mau ʻāpana: ʻano ʻano wehe a me ke ʻano kumu huna.Wahi a nā hiʻohiʻona o ka ʻīpuka, hiki ke hoʻokaʻawale ʻia i ʻelua ʻano: ʻano wedge a me nā ʻano like.

2.2Hoʻokuʻu i ka valve

ʻO ka valve globe he valve e pani ana i lalo.Hoʻokele ʻia nā ʻāpana wehe a pani ʻia (valve discs) e ke kumu valve e neʻe i luna a i lalo ma ke axis o ka noho valve (sealing surface).Ke hoʻohālikelike ʻia me nā kīwaha puka, loaʻa iā lākou ka hana hoʻoponopono maikaʻi, maikaʻi ʻole ka hana sealing, hana maʻalahi, hana maʻalahi a me ka mālama ʻana, ke kūpaʻa wai nui, a me ke kumu kūʻai.He pahu hoʻomaha maʻamau ia, hoʻohana maʻamau i nā pipeline liʻiliʻi a me ke anawaena.

2.3 Puka kinipopo

ʻO ka wehe ʻana a me ka ʻāpana pani o ka pahu pōpō he pōpō me ka pōʻai ma loko o ka puka.Holo ka pōleʻa me ke kumu valve e wehe a pani i ka pahu.He ʻano maʻalahi ka ʻōmole pōleʻa, wehe wikiwiki a pani ʻia, hana maʻalahi, liʻiliʻi liʻiliʻi, ke kaumaha māmā, nā ʻāpana liʻiliʻi, ke kūpaʻa wai liʻiliʻi, ke sila maikaʻi a me ka mālama maʻalahi.