ʻO kēlā me kēia hulina wikiwiki ma ka pūnaewele no kahi valve e hōʻike i nā hopena like ʻole: manual a ʻakomi paha, keleawe a kila kila paha, flanged a NPT paha, hoʻokahi ʻāpana, ʻelua a ʻekolu paha ʻāpana, a pēlā aku. Me nā ʻano valve like ʻole e koho ai, pehea ʻoe e maopopo ai ke kūʻai nei ʻoe i ke ʻano kūpono? ʻOiai e kōkua kāu noi i ke alakaʻi iā ʻoe i ke koho valve kūpono, he mea nui e loaʻa kahi ʻike kumu o nā ʻano valve like ʻole i hāʻawi ʻia.

He kino hoʻolei paʻa ko ka kiwikā poepoe hoʻokahi ʻāpana e hōʻemi ana i ka pilikia o ka liki ʻana. He makepono lākou a ʻaʻole hoʻoponopono pinepine ʻia.

ʻO nā valves pōpō ʻelua ʻāpana kekahi o nā mea i hoʻohana pinepine ʻianā kiwikā poepoeE like me ka inoa e hōʻike nei, ʻo kahi kiwikā pōpō ʻelua ʻāpana he ʻelua ʻāpana, kahi ʻāpana me kahi ʻāpana i hoʻopili ʻia ma kekahi wēlau a me ke kino kiwikā. Hoʻopili ka ʻāpana ʻelua ma luna o ka ʻāpana mua, paʻa i ka ʻoki ma kahi a hoʻokomo pū i ka pilina ʻelua o ka wēlau. Ke hoʻokomo ʻia, ʻaʻole hiki ke hoʻoponopono ʻia kēia mau kiwikā ke ʻole lākou e lawe ʻia mai ka lawelawe.

Eia hou, e like me ka inoa e hōʻike nei, ʻo kahi kiwikā pōpō ʻekolu ʻāpana he ʻekolu ʻāpana: ʻelua mau poʻi hope a me ke kino. Hoʻopili pinepine ʻia nā poʻi hope a hoʻopaʻa ʻia paha i ka paipu, a hiki ke wehe maʻalahi ʻia ka ʻāpana kino no ka hoʻomaʻemaʻe a hoʻoponopono paha me ka ʻole o ka wehe ʻana i ka poʻi hope. Hiki i kēia ke lilo i koho waiwai nui no ka mea e pale ai i ka laina hana mai ka pani ʻia ʻana i ka wā e pono ai ka mālama ʻana.

Ma ka hoʻohālikelike ʻana i nā ʻano o kēlā me kēia valve me kāu mau koi noi, hiki iā ʻoe ke hana i kahi hoʻoholo naʻauao e kūpono loa i kāu mau pono. E kipa i kā mākou pūnaewele valve e aʻo e pili ana i kā mākou laina huahana valve pōpō a i ʻole e hoʻomaka e hoʻonohonoho i kēia lā.

Ka hōʻike ʻana o ka UV
KeʻokeʻoPaipu PVC,ʻO ke ʻano i hoʻohana ʻia no ka paipu ʻana, e haki ana ke hōʻike ʻia i ka mālamalama UV, e like me ka lā. ʻO kēia ka mea i kūpono ʻole ai no nā noi waho kahi e uhi ʻole ʻia ai, e like me nā pou hae a me nā noi uhi hale. I ka hala ʻana o ka manawa, hōʻemi ka ʻike ʻana o UV i ka maʻalahi o ka mea ma o ka hoʻohaʻahaʻa ʻana o ka polymer, hiki ke alakaʻi i ka māhele ʻana, ka haki ʻana, a me ka māhele ʻana.

mahana haʻahaʻa
I ka emi ʻana o ka mahana, lilo ka PVC i mea palupalu a palupalu. Ke hōʻike ʻia i nā mahana hau no ka manawa lōʻihi, lilo ia i mea palupalu a nahā maʻalahi. ʻAʻole kūpono ka PVC no nā noi i kau ʻia ma lalo o nā mahana hau mau, a ʻaʻole loa e hau ka wai i lokoNā paipu PVCno ka mea hiki ke hana i ka nahā a me ka pahū ʻana.

makahiki
Hoʻopau ʻia nā polymers a i ʻole nā ​​​​plastics āpau i kekahi kekelē i ka hala ʻana o ka manawa. He huahana ia o kā lākou ʻano kemika. I ka hala ʻana o ka manawa, hoʻopili ka PVC i nā mea i kapa ʻia ʻo plasticizers. Hoʻohui ʻia nā plasticizers i ka PVC i ka wā o ka hana ʻana e hoʻonui i kona maʻalahi. Ke neʻe lākou i waho o nā paipu PVC, ʻaʻole wale nā ​​​​paipu i emi iki ka maʻalahi ma muli o ka nele o lākou, akā waiho ʻia me nā kīnā ma muli o ka nele o nā mole plasticizer, hiki ke hana i nā māwae a i ʻole nā ​​​​māwae i loko o nā paipu.

ka hōʻike ʻana i nā kemika
Hiki i nā paipu PVC ke lilo i mea palupalu mai ka hoʻopili ʻia ʻana o nā kemika. Ma ke ʻano he polymer, hiki i nā kemika ke loaʻa ka hopena maikaʻi ʻole i ke ʻano o PVC, e wehe ana i nā pilina ma waena o nā molekala i loko o ka plastic a hoʻolalelale i ka neʻe ʻana o nā plasticizers i waho o nā paipu. Hiki i nā paipu hoʻokahe PVC ke lilo i mea palupalu inā hōʻike ʻia i nā nui o nā kemika, e like me nā mea i loaʻa i nā mea wehe plug hoʻokahe wai.