Ke koho nei ʻoe i ka valve no kahi ʻōnaehana hou. ʻO ke koho ʻana i ka mea hiki ʻole ke hoʻopaʻa i ke kaomi laina hiki ke alakaʻi i ka hoʻokuʻu ʻana i ka pōʻino, e hoʻoulu ai i ka waikahe, pōʻino waiwai, a me ka manawa hoʻomaha.

Hoʻohālikelike ʻia kahi pahu kinipopo PVC maʻamau no 150 PSI (Pounds per Square Inch) ma 73°F (23°C). Ke emi nui nei kēia helu kaomi i ka piʻi ʻana o ka mahana o ka wai, no laila pono ʻoe e nānā mau i ka ʻikepili o ka mea hana.

ʻO kēia kekahi o nā kikoʻī loea koʻikoʻi aʻu e kamaʻilio nei me nā hoa like e like me Budi. ka hoomaopopo anahelu kaomiʻaʻole pili wale i ka heluhelu helu; e pili ana i ka hōʻoia ʻana i ka palekana a me ka hilinaʻi o kāna mau mea kūʻai. Ke hiki i ka hui o Budi ke wehewehe wiwo ole i ke kumu a150 PSI kiwiHe kūpono ia no ka ʻōnaehana irrigation akā ʻaʻole no ka laina wai wela, neʻe lākou mai ka mea kūʻai aku i nā ʻōlelo aʻoaʻo hilinaʻi. Mālama kēia ʻike i nā hemahema a kūkulu i nā pilina lōʻihi, lanakila-lanakila i kumu o kā mākou ʻoihana ma Pntek.

ʻEhia ka nui o ke kaomi i helu ʻia no PVC?

Manaʻo kāu mea kūʻai aku ua like nā ʻāpana PVC āpau. Hiki i kēia kuhi hewa ke alakaʻi iā lākou i ka hoʻohana ʻana i kahi paipu haʻahaʻa haʻahaʻa me kahi valve kiʻekiʻe, e hana ana i kahi pōkā manawa i kā lākou ʻōnaehana.

ʻO ka helu kaomi no PVC e pili ana i kona mānoanoa pā (Schedule) a me ke anawaena. Hiki i ka paipu maʻamau 40 ke piʻi mai ka 400 PSI no nā nui liʻiliʻi a i lalo o 200 PSI no nā mea nui.

He hewa maʻamau ka noʻonoʻo ʻana ua helu ʻia kahi ʻōnaehana no 150 PSI no ka mea ʻo ka valve kinipōpō. Ke hoʻoikaika mau nei au iā Budi ʻo ka ʻōnaehana holoʻokoʻa e like me kona ʻāpana nāwaliwali loa. Ka helu kaomi no PVCpaipuʻokoʻa ka valve. Ua wehewehe ʻia e kāna "Schedule," e pili ana i ka mānoanoa o ka pā.

• Papa 40:ʻO kēia ka mānoanoa pā maʻamau no ka nui o ka paipu wai a me ka hoʻoinu wai.
• Papa 80:ʻOi aku ka mānoanoa o ka pā o kēia paipu, a no laila, ʻoi aku ka kiʻekiʻe o ke kaomi. Hoʻohana pinepine ʻia i nā noi ʻoihana.

ʻO ka mea nui e lawe ʻia, ʻo ia ka loli ʻana o ka helu kaomi me ka nui o ka paipu. Eia ka hoʻohālikelike maʻalahi no ka Hōʻike 40 paipu ma 73°F (23°C):

ʻO kahi ʻōnaehana me ka paipu 4″ Sch 40 a me kā mākou 150 PSI pōlele kiwi he 150 PSI. Pono ʻoe e hoʻolālā no ka ʻāpana helu haʻahaʻa loa.

He aha ka helu kaomi o ka pahu kinipopo?

ʻIke ʻoe i kahi valve keleawe i helu ʻia no 600 PSI a me kahi valve PVC no 150 PSI. ʻO ka ʻike ʻole i ke kumu o ko lākou ʻokoʻa hiki ke paʻakikī i ke koho ʻana i ka mea kūpono no ka hana.

Hoʻoholo ʻia ka pālākiō puʻupuʻu o ka pōleʻa ma muli o kāna mea hana a me kāna hana. He 150 PSI maʻamau nā valves PVC, aʻo nā valve metala i hana ʻia me ke keleawe a i ʻole ke kila hiki ke helu ʻia no 600 PSI a ma luna o 3000 PSI.

ʻO ka huaʻōlelo“pahu pōlele”wehewehe i ka hana, akā ʻo ka hiki ke kaomi mai nā mea. He hihia maʻamau o ka hoʻohana ʻana i ka hāmeʻa kūpono no ka hana. No kāna mau mea kūʻai, pono ka hui o Budi e alakaʻi iā lākou ma muli o ka noi.

Nā mea nui e hoʻoholo ana i ka helu kaomi:

1. Mea Kino:ʻO kēia ka mea nui loa. He ikaika ka PVC, akā ʻoi aku ka ikaika o ka metala. He koho maʻamau ka keleawe no ka wai wela o ka hale a me nā noi maʻamau a hiki i 600 PSI. Hoʻohana ʻia ke kila kalapona a me ke kila kila no nā kaʻina hana ʻoihana kiʻekiʻe kahi e hiki ai ke kaomi i nā tausani PSI.
2. Noho & Sila Mea:ʻO nā ʻāpana "ʻoluʻolu" i loko o ka valve, e like me nā noho PTFE i hoʻohana ʻia e kā mākou Pntek valves, loaʻa nō hoʻi nā palena a me nā palena wela. Pono lākou e hana i kahi sila me ka ʻole o ka deformed a i ʻole ka luku ʻia e ke kaomi ʻōnaehana.
3. Kūkulu ʻia:ʻO ke ʻano o ka hui ʻana o ke kino valve e pili pū ana i kona ikaika.

A ʻO ka valve PVCʻOi aku ka nui o ka helu 150 PSI no ka nui o nā noi wai i hoʻolālā ʻia, e like me ka irrigation, nā loko, a me nā paipu hale.

He aha ke ʻano o ka helu kaomi valve?

ʻIke ʻoe i ka "150 PSI @ 73°F" ma kahi kino valve. Inā nānā wale ʻoe i ka 150 PSI a nānā ʻole i ka mahana, hiki iā ʻoe ke hoʻokomo i ka valve ma kahi laina kahi i hōʻoia ʻia e hāʻule.

ʻO ka pālākiō puʻupuʻu ka palena kiʻekiʻe loa e hiki ai i ke kiwi ke mālama i kahi wela kikoʻī. No nā kiwi wai, kapa pinepine ʻia kēia ʻo ka Cold Working Pressure (CWP).

ʻO kēia wehewehe ʻelua ʻāpana - kaomiathe mahana—ʻo ia ka manaʻo nui loa e aʻo ai. He mea maʻalahi ka pilina: i ka piʻi ʻana o ka mahana, e iho ka ikaika o ka mea PVC, a pēlā pū kona helu kaomi. Kapa ʻia kēia "de-rating." Ua helu ʻia kā mākou Pntek valves no 150 PSI ma kahi ʻano wai wela o ka lumi maʻamau. Inā ho'āʻo kāu mea kūʻai aku e hoʻohana i kēlā pahu pahu hoʻokahi ma kahi laina me ka wai 120°F (49°C), hiki ke hāʻule i ka 50% a ʻoi aʻe paha ke kaomi palekana hiki iā ia ke mālama. Hāʻawi kēlā me kēia mea hana kaulana i kahi pakuhi de-rating e hōʻike ana i ke kaomi ʻae ʻia ma nā wela kiʻekiʻe. Ua hōʻoia au iā Budi i kēia mau palapala no kā mākou huahana a pau. ʻO ka nānā ʻole ʻana i kēia pilina ke kumu helu hoʻokahi o ka hemahema o nā mea i loko o nā ʻōnaehana paipu thermoplastic.

He aha ka helu kaomi no ka papa 3000 ball valve?

Nīnau kekahi mea kūʻai ʻoihana no ka valve "Class 3000". Inā ʻaʻole ʻoe i ʻike i ke ʻano o kēia, e hoʻāʻo paha ʻoe e ʻimi i kahi mea like PVC, ʻaʻole i loaʻa, a hōʻike i ka nele o ka ʻike.

ʻO ka pahu pōpō pōleʻa Class 3000 he kiʻekiʻe kiʻekiʻe i hana ʻia me ke kila forged, i helu ʻia e mālama i ka 3000 PSI. He ʻano ʻokoʻa loa kēia mai nā valve PVC a hoʻohana ʻia no ka aila a me ke kinoea.

Kōkua kēia nīnau i ka huki ʻana i kahi laina maʻemaʻe i ke one no ka noi huahana. ʻO nā helu "Papa" (e laʻa, Papa 150, 300, 600, 3000) he ʻāpana o kahi maʻamau ANSI/ASME kikoʻī i hoʻohana ʻia no nā flanges ʻoihana a me nā kiwi, aneane hana ʻia me ka metala. ʻOi aku ka paʻakikī o kēia ʻōnaehana helu ma mua o ka helu CWP maʻalahi ma kahi valve PVC. APapa 3000 valveʻaʻole wale no ke kaomi kiʻekiʻe; ua hoʻolālā ʻia no nā wela wela a me nā wahi ʻino e like me nā mea i loaʻa ma ka ʻoihana aila a me ke kinoea. He huahana kūikawā e kūʻai ana i nā haneli a i ʻole nā ​​kaukani kālā. Ke noi ka mea kūʻai aku i kēia, ke hana nei lākou i kahi ʻoihana kikoʻī i kūpono ʻole no PVC. ʻO ka ʻike ʻana i kēia e hiki ai i ka hui o Budi ke ʻike koke i ka palapala noi a pale aku i ka ʻōlelo ʻana ma kahi hana kahi e hoʻohana hewa ʻia ai kā mākou huahana. Hoʻoikaika ia i ka ʻike ma ka ʻike ʻana i kāu meamaikuai, e like me kau hana.

Ka hopena

He 150 PSI maʻamau ka pālākiō puʻupuʻu pōleʻa PVC ma ka lumi wela, akā hāʻule kēia i ka piʻi ʻana o ka wela. E hoʻohālikelike mau i ka valve me ke koi o ka ʻōnaehana a me ka wela.