Pehea e koho ai i ka valve butterfly pono?

ʻO ka valve butterfly plastic he mea hoʻokele wai maʻamau, hoʻohana nui ʻia i ka ʻoihana, kūkulu a me ka mahiʻai. Loaʻa nā UPVC CPVC PPH PVDF PPH material butterfly valve. ʻO ka nui o ka lever butterfly nui ka DN50, DN65 DN80, DN100, DN 200, ʻO ka valve butterfly i hoʻohana ʻia i ka ilo me DN50 ~DN300. Loaʻa iā ia nā pōmaikaʻi o ka hoʻolālā maʻalahi, ka hana maʻalahi a me ke kūpaʻa corrosion, no laila makemake nui ʻia e nā mea hoʻohana. Eia nō naʻe, i ke kūʻai ʻana i ka valve butterfly plastic, pono mākou e noʻonoʻo i kekahi mau mea koʻikoʻi. Na kēia ʻatikala e hāʻawi iā ʻoe i kahi alakaʻi koho ʻana i ka valve butterfly plastic e kōkua iā ʻoe e koho i ka huahana kūpono.

1, Hoʻohālikelike Kemika:

E hoʻoholo i nā kemika kūikawā a i ʻole nā ​​​​wai e ʻike ʻia ai ka valve. E koho i nā mea ʻilika no ke kino valve a me nā ʻāpana i kūpaʻa loa i nā hopena corrosive o nā kemika. He ʻokoʻa ke kūʻē ʻana o nā plastics like ʻole i nā kemika like ʻole, no laila he mea koʻikoʻi ka hoʻohālikelike ʻana i ka mea me nā waiwai kemika.

2, E koho i ka mea pono:

Hana ʻia nā kiwi lele lele i nā ʻano mea like ʻole, i loaʻa pinepine ʻia ma PVC (polyvinyl chloride), CPVC (chlorinated polyvinyl chloride), PP (polypropylene), PVDF (polyvinylidene fluoride) a me PTFE (polytetrafluoroethylene)., etc. nāʻano hana likeʻole, no laila ponoʻoe e koho i ka mea kūpono e like me nā pono kiko'ī. ʻO ka mea maʻamau, kūpono ka polypropylene no ka mea maʻamau, kūpono ka PVC no ka waikiki palupalu a me ka medium alkali, kūpono ka PTFE no ka waika ikaika a me ka medium alkali, a ua kūpono ʻo FRP no ke ʻano wela wela.

i ke koho ʻana i nā kiwi lele PVC, CPVC, PP a i ʻole PVDF no nā noi kemika like ʻole, pono e noʻonoʻo i ka hoʻohālikelike kemika o kēlā me kēia mea. Eia nā alakaʻi maʻamau no ka hoʻohālikelike ʻana o kēia mau mea me nā kemika like ʻole.

Pvc (polyvinyl chloride) kiwi lele:

He kūpono no ka mālama ʻana i ka wai, waika (dilute), alkali a me ka paʻakai.

ʻAʻole ʻōlelo ʻia no ka hoʻohana ʻana me nā waikawa ikaika, ketones, esters a me nā hydrocarbons aromatic a chlorinated.

CPVC (chlorinated polyvinyl chloride) kiwi lele:

Kū'ē i ka laulā o nā kemika ma mua o PVC, me nā wai wela wela, nā paʻakai, a me nā waikawa a me nā alkali.

ʻAʻole ʻōlelo ʻia no ka hoʻohana ʻana me nā solvents polar, hydrocarbons aromatic a me nā hydrocarbons chlorinated.

ʻO PP (polypropylene) kiwi lele:

Kūleʻa i nā ʻano waikawa, alkalis a me nā mea hoʻoheheʻe organik.

ʻAʻole ʻōlelo ʻia no ka hoʻohana ʻana me nā waikawa oxidizing ikaika, chlorinated hydrocarbons, aromatic a halogenated hydrocarbons.

PVDF (polyvinylidene fluoride) kiwi lele:

Kūleʻa loa i ka nui o nā kemika corrosive, me nā waikawa ikaika, nā kumu a me nā mea hoʻoheheʻe halogenated.

He kūpono no ka lawelawe ʻana i nā kemika corrosive a me nā noi maʻemaʻe kiʻekiʻe.

E ʻoluʻolu e ʻimi i nā palapala hoʻohālikelike kemika a me nā pepa ʻikepili kikoʻī e hōʻoia i ke koho pololei ʻana o nā pahu lele lele PVC, CPVC, PP a i ʻole PVDF no nā noi kemika like ʻole. Eia kekahi, e noʻonoʻo i nā kūlana wela a me ke kaomi a me nā kūlana hoʻoponopono a me nā ʻoihana i ka wā e koho ai.

3. E hoʻolohe i ke ʻano o ke kino valve:

ʻO ke ʻano o ke kino o ke kino butterfly butterfly kekahi o nā kumu e noʻonoʻo ʻia i ke kūʻai ʻana. He ʻano flange, ʻano wili a me ke ʻano welded. He kūpono ke kino valve Flanged no ka nui anawaena a me ke kiʻekiʻe puʻe manawa, threaded valve kino kūpono no ka liʻiliʻi anawaena a me ka haʻahaʻa puʻe manawa, welded valve kino kūpono no kiʻekiʻe wela a me kiʻekiʻe puʻe manawa. No laila, pono ʻoe e koho i ka ʻōnaehana kino valve kūpono e like me ke kūlana maoli i ke kūʻai ʻana.

4. E hoʻolohe i ka mea noho:

He ʻāpana koʻikoʻi ka noho valve o ka valve butterfly plastic, e pili pono ana i ka hana sealing o ka valve. Loaʻa nā mea noho pahu pahu maʻamau EPDM (ethylene propylene diene monomer), Buna-N (nitrile rubber), fluoroelastomer (FKM, FPM, VITON), PTFE a me polyurethane. FKM、FPM、VITON maikaʻi ka corrosion a me ka abrasion kū'ē, PTFE i maikai corrosion a me kiʻekiʻe wela kū'ē, a polyurethane he maikai abrasion a me ka aila kū'ē. .

Ua koho ʻia kēia mau mea no ko lākou hiki ke hāʻawi i kahi sila paʻa, ʻaʻahu i ke kūpaʻa, a me ka launa pū me nā ʻano wai a me nā mahana. ʻO nā mea kikoʻī i hoʻohana ʻia no nā noho valve butterfly plastic ma muli o ke noi, ke ʻano o ka wai e hoʻomalu ʻia, a me nā kūlana hana.

I ke kūʻai ʻana, pono ʻoe e koho i nā mea noho valve kūpono e like me nā ʻano o ka medium

00001.

5, Paʻi a me ke ana wela:

E koho i nā valves hiki ke mālama i ke kaomi hana a me nā kūlana wela i loko o ka ʻōnaehana e hōʻoia i ka hana palekana a hilinaʻi.

ʻO ka inoa o nā mea palaki a me ka mahana kūpono:

6, Nui a me ke kahe:

E koho i ka nui o ka valve a me ke kahe e pili ana i nā koi o ka ʻōnaehana no ka hoʻokō ʻana i ka mana kahe i makemake ʻia.

7. E noʻonoʻo i ke ʻano hana:

Hoʻohana lima ʻia nā kiwi pepeke plastik, me ka uila a me ka pneumatically. He maʻalahi ka hana lima, haʻahaʻa ke kumu kūʻai, kūpono no nā ʻōnaehana liʻiliʻi; maʻalahi ka hana uila, pololei kiʻekiʻe, kūpono i nā ʻōnaehana nui; He wikiwiki ka hana pneumatic, kiʻekiʻe o ka automation, kūpono i nā ʻōnaehana e pono ai ke hoʻololi pinepine. No laila, i ke kūʻai ʻana i ka pono e koho i ke ʻano kūpono o ka hana e like me nā pono maoli.

8. E hoʻolohe i nā kūlana valve a me ka hōʻoia:

I ke kūʻai ʻana i nā valve butterfly plastic, pono ʻoe e hoʻolohe i ka hoʻokō ʻana o ka valve i nā kūlana kūpono a me nā koi hōʻoia. ʻO nā kūlana maʻamau a me nā palapala hōʻoia he ISO, CE, API a pēlā aku. ʻO ke koho ʻana i nā huahana i kūpono i nā kūlana a me nā koi hōʻoia hiki ke hōʻoia i ka maikaʻi a me ka palekana o ka huahana.

Ma ka noʻonoʻo pono ʻana i kēia mau mea, hiki iā ʻoe ke koho i kahi valve butterfly plastic kūpono no ka lawelawe ʻana i nā kemika like ʻole, e hōʻoia i ka palekana, hilinaʻi a me ka lōʻihi o kāu noi.