Pono ʻoe i kahi kiwikā no kahi laina kemika, akā ʻaʻole hiki ke koho ʻia ka PVC maʻamau. ʻO ke koho ʻana i ka mea hewa e hiki ke hoʻoheheʻe, nā ninini weliweli, a me nā pōʻino pipiʻi i kāu ʻōnaehana holoʻokoʻa.

ʻO ka kiwikā poepoe PP he kiwikā pani i hana ʻia mai ka polypropylene, he polymer thermoplastic. Ua koho kūikawā ʻia no kona kūpaʻa kūikawā i nā ʻano waikawa like ʻole, nā kumu, a me nā mea hoʻoheheʻe kemika, ʻoiai kahi e hāʻule ai ka PVC.

Ke kamaʻilio wau me kaʻu mau hoa hana e like me Budi ma Indonesia, hele pinepine ke kamaʻilio ʻana ma mua o nā noi wai maʻamau. He nui o kāna mau mea kūʻai aku e hana ana ma nā ʻoihana e like me ka hana kemika a i ʻole ka mālama ʻana i ka wai, kahi i ʻoi aku ka ikaika o nā wai ma mua o ka wai maʻamau. No kēia mau hana, e hoʻohana wale ana i kahi maʻamaukiwikā PVCʻaʻole lawa. Pono ʻoe i kahi mea i kūkulu ʻia e lawelawe i nā kūlana ʻino me ka ʻole o ka palaho. ʻO kēlā mea he polypropylene pinepine, a i ʻole PP. Hāʻawi ia i ka palekana a me ka hilinaʻi e pono ai no kēia mau noi ʻoihana koʻikoʻi.

He aha ke ʻano piha o PP i loko o nā kiwikā?

ʻIke ʻoe iā "PP" i helu ʻia ma kahi papa inoa akā ʻaʻole maopopo iā ʻoe kona ʻano. He mea paʻakikī kēia ke nānā i kona mau waiwai a wehewehe paha i kona mau pono i kāu poʻe kūʻai me ka hilinaʻi.

ʻO ke ʻano piha o ka PP i loko o nā valves he Polypropylene. He thermoplastic paʻa loa a māmā hoʻi ia e pili ana i ka ʻohana like o nā plastics e like me PVC (Polyvinyl Chloride) a me PE (Polyethylene).

ʻO Polypropylene kekahi o nā plastics versatile loa ma ka honua. He mea hana ia i hoʻohana ʻia i nā mea āpau mai nā ʻāpana kaʻa a i nā lako hana hoʻokolohua ma muli o kona mau waiwai kū hoʻokahi. I ke ao o nā valves a me nā paipu, ʻo kona pono nui ʻo ia kona kupaianahake kūpaʻa kemikaʻAʻole e like me ka PVC, hiki iā ia ke lawelawe i nā waikawa ikaika he nui, nā alkalis, a me nā mea hoʻoheheʻe organik me ka ʻole o ka haki ʻana. ʻO ia ke kumu i loaʻa ai iā mākou ma Pntek kahi laina hoʻolaʻa oNā kiwikā PP. Ua ʻike mākou no kekahi mau hana ʻoihana, ʻaʻohe mea e pani ai. ʻO ka hoʻomaopopo ʻana i ka "PP" ʻo ia hoʻi ka polypropylene ka hana mua i ke koho ʻana i ka valve kūpono no kahi noi kemika paʻakikī.

ʻO Polypropylene (PP) vs. Polyvinyl Chloride (PVC)

Waiwai	Polypropylene (PP)	Polyvinyl Chloride (PVC)
Inoa Mea	Polypropylene	Polyvinyl Chloride
Hoʻohana mua	ʻOihana kemika, nā keʻena hoʻokolohua, ka electroplating, nā noi ʻoihana.	Ka halihali wai, ka ʻauwai wai, ka paipu wai hale noho, nā loko ʻauʻau.
Ke kū'ē kemika	Maikaʻi loa; ʻoi aku hoʻi i nā waikawa, nā kumu, a me nā mea hoʻoheheʻe.	Maikaʻi; akā hiki ke pale ʻia i kekahi mau mea hoʻoheheʻe a me nā hui chlorinated.
Palena Mahana	ʻOi aku ke kiʻekiʻe; hiki ke hoʻokele pinepine i nā wai a hiki i 80-90°C (175-195°F).	Haʻahaʻa; i kaupalena ʻia i 60°C (140°F).
ʻAno Hoʻohui	He mea maʻamau ka hoʻoheheʻe wela (welding), loaʻa pū kekahi me nā sockets/threads	ʻO ka sima hoʻoheheʻe (pili) no nā wēlau o ke kumu, ke kaula ʻana.

He aha ka pōpō PP?

ʻIke ʻoe i kahi kiwikā me ke kino PVC akā he pōpō PP. He mea ʻē kēia hui ʻana o nā mea, a ke noʻonoʻo nei ʻoe inā he hana hōʻemi kālā a i ʻole he hiʻohiʻona me kahi kumu maoli.

ʻO ka pōpō PP ka poepoe wili i loko o kahi kiwikā i hana ʻia mai ka polypropylene. ʻO ka hoʻohana ʻana i ka pōpō PP i loko o kahi kiwikā PVC he koho hoʻolālā akamai e hoʻomaikaʻi ana i ke kūpaʻa kemika no ke kumu o ka kiwikā me ka mālama ʻana i nā kumukūʻai haʻahaʻa.

He wahi kūkākūkā maʻamau kēia. ʻO ka pōpō a me nā noho nā ʻāpana o ka valve e pili mau ana me ke kahe, ʻoiai ke pani ʻia ka valve. Ua kapa ʻia lākou ʻo "nā ʻāpana i pulu ʻia"ʻO ke kino valve, ma ka ʻaoʻao ʻē aʻe, ua hōʻike wale ʻia ke wehe ʻia ka valve. No nā noi me nā wai ʻino iki, ʻaʻole paha ʻoe e pono e hana ʻia ke kino valve holoʻokoʻa mai nā mea pipiʻi a kiʻekiʻe. Ma ka hoʻohana ʻana i kahipōpō PP kūpaʻa kemikai loko o ke kino PVC maʻamau, hana mākou i kahi mea kūpono ke kumukūʻaikiwikāe hāʻawi mau ana i ka palekana i hoʻonui ʻia ma kahi e nui ai ka mea nui. E pili ana i ka hāʻawi ʻana i kahi hopena i kuhikuhi ʻia e kaulike ana i ka hana a me ka hoʻolālā kālā no nā pono kikoʻī o kā mākou mau hoa.

He aha ka helu kaomi o kahi kiwikā poepoe PP?

ʻIke ʻoe he maikaʻi ka PP no nā kemika, akā hiki iā ia ke hoʻokele i ke kaomi? ʻO ka hoʻohana ʻana i kahi valve i hoʻohaʻahaʻa ʻia he pilikia palekana nui ia e hiki ai ke alakaʻi i ka pahū ʻana o ka ʻōnaehana a me nā ninini kemika weliweli.

ʻO ka helu kaomi no nā kiwikā pōpō PP a Pntek ʻo PN16, ʻo ia hoʻi he 16 bar a i ʻole ma kahi o 235 PSI ma ka mahana o ka lumi (20°C). He mea nui e hoʻomanaʻo e emi ana kēia helu i ka piʻi ʻana o ka mahana o ka wai. E nānā mau i ka pakuhi kaomi-mahana o ka mea hana.

ʻO kā mākouNā kiwikā poepoe PPma Pntek he helu PN16 paʻa. ʻO ia hoʻi, hiki iā lākou ke lawelawe i 16 bar o ke kaomi, ʻo ia hoʻi ma kahi o 235 PSI. ʻO kēia helu kiʻekiʻe he hōʻailona o ka maikaʻi o ka ʻoihana, akā ʻaʻole ia ka moʻolelo piha. ʻO ka mea nui aʻu e wehewehe ai i nā hoa e like me Budi, ʻo ia ka pili pono ʻana o kēia helu kaomi i ka mahana o ka wai. ʻO nā thermoplastics āpau, me ka polypropylene, e palupalu a emi iki ka paʻa i ko lākou wela ʻana. I ka palupalu ʻana o ka mea, e emi nui ana kona hiki ke hoʻopaʻa i ke kaomi. ʻO ka nānā ʻole ʻana i kēia piʻo 'derating' ʻaʻole ia he hana maikaʻi ʻole; he mea weliweli ia. Hāʻawi mākou i kahi pakuhi maopopo me kā mākou mau valves e pale aku i ka hāʻule ʻana o ka ʻōnaehana a hōʻoia i ka palekana o kā mākou mea kūʻai aku i nā manawa a pau.

Ke Kūlana Koʻikoʻi o ka Hoʻemi ʻana o ka Mahana

Mahana Wai	Kaomi Hana Loa (PN16 Valve)
20°C (68°F)	16 pā (235 PSI)
60°C (140°F)	6.4 pā (94 PSI)
80°C (176°F)	3.2 pā (47 PSI)

Nānā: He laʻana kēia no kahi valve PN16. E nānā mau i ka pepa ʻikepili Pntek kikoʻī no nā helu kikoʻī.

He aha ka kiwikā PP-H?

Loaʻa iā ʻoe nā ʻano PP like ʻole, e like me "PP-H." ʻAʻole ʻoe maopopo i ke ʻano o ka "-H" a i ʻole inā he mea ʻokoʻa ia e pono ai ʻoe e hopohopo i ke kauoha ʻana.

Hana ʻia kahi kiwikā PP-H mai ka Polypropylene Homopolymer. He papa PP paʻa loa kēia i ʻike ʻia no kona ikaika maikaʻi loa, ʻoʻoleʻa, a me ka hana wela kiʻekiʻe, e kūpono ana no nā kiwikā ʻoihana a me nā mea hoʻopili.

ʻAʻole like nā polypropylene āpau. ʻO ke "-H" ke kū nei no Homopolymer, ʻo ia hoʻi, ua hana ʻia ka plastic mai hoʻokahi ʻano poloka hale monomer (propylene). ʻO ka hopena o kēia he mea ikaika loa a paʻakikī hoʻi, ʻo ia ka mea āu e makemake ai no ke kino valve e pono ai ke hoʻopaʻa i ke kaomi kiʻekiʻe a kūʻē i ke kūlou ʻana. Aia kekahi mau ʻano ʻē aʻe, e like me nā copolymers (PP-B, PP-R), i hana ʻia ma ka hoʻohui ʻana i kahi monomer ʻē aʻe. ʻOi aku ka maʻalahi o kēia mau ʻano ʻē aʻe a i ʻole he ikaika hopena maikaʻi aʻe i nā mahana haʻahaʻa, e kūpono ai lākou no nā mea ʻē aʻe, e like me nā paipu e pono ai ke kūlou. Ma Pntek, koho mākou iā PP-H no kā mākou mau valves ʻoihana no ka mea ʻo kona paʻakikī a me ke kūpaʻa wela e hāʻawi i ka hana maikaʻi loa a me ke ola lawelawe lōʻihi loa.

Nā ʻAno Maʻamau o ka Polypropylene

ʻAno	Inoa piha	Nā Waiwai Koʻikoʻi	Ka Hoʻohana Maikaʻi Loa
PP-H	Homopolymer	ʻOʻoleʻa kiʻekiʻe, ikaika, kūpaʻa wela maikaʻi loa a me ke kūpaʻa kemika.	Nā kiwikā, nā lako ʻoihana, nā pahu kemika.
PP-B	Poloka Copolymer	Ka ikaika hopena kiʻekiʻe, ʻoi aku hoʻi i nā mahana haʻahaʻa.	Nā hihia pila, nā ʻāpana ʻoihana e pono ai ka paʻa o ka hopena.
PP-R	Copolymer Random	Palupalu, ʻoi aku ka maʻalahi, maikaʻi ke kūpaʻa wela no ka wā lōʻihi.	Nā paipu wai wela a me ke anu.

Hopena

A kiwikā poepoe PPhe ʻāpana koʻikoʻi no ka lawelawe palekana ʻana i nā kemika. Ma ka hoʻomaopopo ʻana i kona mau waiwai mea, nā palena kaomi, a me nā papa like ʻole e like me PP-H, hiki iā ʻoe ke koho i ka valve kūpono no nā hana ʻoihana koi.