ʻO ka hana o ka noho valve: hoʻohana ʻia e kākoʻo i ke kūlana paʻa piha o ke kumu valve a hana i kahi paʻa.

Hana o ka Disc: Disc - he diski spherical e hoʻonui i ka hoʻokiʻekiʻe a hoʻemi i ka hāʻule o ke kaomi. Paʻakikī e hoʻonui i ke ola lawelawe.

ʻO ke kuleana o ke kumu valve: ʻO ke kumu valve i ke kaomipahu hoʻēmiʻo ia kekahi o nā mea nui no ka hoʻomalu ʻana i ke kaomi.

Nā hiʻohiʻona noho o ka valve: Ke kū'ēʻana a me kaʻaʻahu; Ka manawa hana lōʻihi; ʻO ke kūpaʻa kiʻekiʻe; Kiʻekiʻe dimensional pololei; ʻO ke kū'ē maikaʻi loa i nā haʻahaʻa hoʻouka a me nā wela kiʻekiʻe; He kūpono no ka hapa nui o nā kaʻa kaʻa, nā kaʻa māmā a me nā kaʻa kaumaha, nā ʻenekini diesel a me nā mīkini ʻenehana paʻa.

Nā hiʻohiʻona pāpaʻi pāpaʻi: Loaʻa iā ia kahi hana hoʻonohonoho hiki ke hoʻopaʻa ʻia i ke komo ʻana o ka paia o ke kino valve. Loaʻa i ka pahu hinge butterfly butterfly plate hinge pin, ʻaʻole ia e hoʻopau wale i ka hiki ke hoʻopaʻa ʻia e ka hinge pin i ka hale valve no ka leakage, akā e maʻalahi hoʻi ka hoʻoponopono ʻana i ka noho kiwi no ka mea ua like ka bracket machined me. ka ʻili o ka noho valve. Hoʻoponopono diski/noho.

ʻO nā hiʻohiʻona o ke kumu o ka valve: I ka wā e hoʻohuli ai ke kumu ʻōwili, e hoʻohuli ka lāʻau ma ka ʻaoʻao haʻahaʻa o ke kumu wili e hoʻohuli ai i ka pā kiwi neʻe e hoʻohuli, i like ka puka puka wai ma ka pā pahu neʻe me ka lua komo wai ma ka neʻe. pā kīwī. pāpaʻi paʻa paʻa, a ma hope, kahe ka wai mai ke poʻo ʻōwili. Hoʻohana nui ʻia kēia hoʻolālā ma nā puka puka.

ʻO ka nānā ʻana i ka noho o ka valve: E hoʻohana i ka mea hoʻopaʻa elastic sealing a me ka pahu mea hoʻokele liʻiliʻi e kiʻi i kahi sila paʻa ea. ʻO ke koʻikoʻi o ka hoʻopaʻa ʻana i ka noho valve e hoʻoheheʻe ʻia ka mea i ka elastically deform a kaomi i loko o ka ʻili o ka ʻāpana metala e hoʻopili ai i nā leaka. alahele. ʻO ka permeability o nā mea i ka wai ke kumu no nā liʻiliʻi liʻiliʻi.

ʻO ka nānā ʻana o ka disc valve: ke apo hoʻopaʻa disc type skirt. Hōʻike ke kumu hoʻohālike i ke apo hoʻopaʻa kīpē kīpē ʻano skirt-type. ʻO kona hiʻohiʻona ʻo ka sila ma waena o ke apo sealing a me ke kino disc valve he sila laina ʻelua ʻaoʻao. ʻO ka ʻāpana longitudinal ma ke kiko hoʻopaʻa ʻana ma waena o ke apo sealing a me ke kino disc valve he wahi mokulele trapezoidal.

Ka nānā 'ana o ka valve core: 'O ka valve core kahi māhele valve e ho'ohana ana i ka ne'e 'ana o ke kino valve no ka ho'okō 'ana i nā hana ma'amau o ka mana kuhikuhi, ka mana kaomi a i 'ole ka mana kahe.

Hoʻohana ʻia ka ʻāpana maka hope hiki ke wehe i loko o ka valve no ke kākoʻo ʻana i ke kūlana paʻa piha o ke kumu valve a hana i kahi paʻa. ʻO ka mea maʻamau, ʻo ke anawaena o ka noho valve ka palena kiʻekiʻe o ke kahe o ka valve. No ka laʻana, hele mai nā ʻūhā butterfly i nā ʻano mea noho. Hiki ke hana ʻia ka mea noho valve me nā mea like ʻole, ka plastic, a me nā mea metala, e like me: EPDM, NBR, NR, PTFE, PEEK, PFA, SS315, STELLITE, etc.

ʻO nā mea waiwai pono e noʻonoʻo ʻia i ke koho ʻana i kahi noho valve palupalu:
1) ʻO ke kūlike o ka wai, e like me ka pehu ʻana, ka nalowale o ka paʻakikī, ka permeability a me ka degradation;
2) Paʻakikī;
3) Hoʻololi mau;
4) Ka degere o ka hoʻihoʻi ma hope o ka wehe ʻana i ka ukana;
5) Ka ikaika tensile a me ka compressive;
6) Deformation ma mua o ka haki ʻana;
7) Pākuʻi elastic.

Disc

ʻO ka disc valve ka valve core, ʻo ia kekahi o nā ʻāpana nui o ka valve. Hāpai pololei ia i ke kaomi waena i loko o ka valve. Pono nā mea i hoʻohana ʻia me nā lula "Valve Pressure and Temperature Class".

ʻO nā mea i hoʻohana mau ʻia e like me kēia:
1. ʻO ka hao hina hina: He kūpono ka hao hina no ka wai, ka mahu, ka ea, ke kinoea, ka aila a me nā mea hoʻolaha'ē aʻe me ke kaomi inoa PN ≤ 1.0MPa a me ka mahana o -10 ° C a 200 ° C. ʻO nā māka i hoʻohana mau ʻia o ka hao hina hina: HT200, HT250, HT300, a me HT350.
2. Malleable hoolei hao: kūpono no ka wai, mahu, ea a me ka aila media me ka nominal kaomi PN≤2.5MPa a me ka mahana o -30 ~ 300 ℃. ʻO nā māka i hoʻohana mau ʻia: KTH300-06, KTH330-08, KTH350-10.
3. ʻO ka hao hao: kūpono no ka wai, ka mahu, ka ea, kaʻaila a me nā mea'ē aʻe me PN≤4.0MPa a me ka mahana -30 ~ 350 ℃. ʻO nā māka i hoʻohana mau ʻia: QT400-15, QT450-10, QT500-7.
I ka ʻike ʻana i ka pae ʻenehana kūloko o kēia manawa, ʻaʻole kūlike nā ʻano hana like ʻole, a pilikia pinepine nā mea hoʻohana. Ma muli o ka ʻike, ua ʻōlelo ʻia ʻo PN≤2.5MPa a me ka mea valve he kila e hōʻoia ai i ka palekana.
4. Acid-resistant high-silicon ductile iron: kūpono no ka corrosive media me ka nominal pressure PN ≤ 0.25MPa a me ka mahana ma lalo o 120°C.
5. ʻO ke kila kalapona: kūpono no ka media e like me ka wai, ka mahu, ka ea, ka hydrogen, ka amonia, ka nitrogen a me nā huahana petroleum me kahi kaomi inoa PN ≤ 32.0MPa a me kahi mahana o -30 ~ 425 ° C. ʻO nā māka maʻamau i hoʻohana ʻia ʻo WC1, WCB, ZG25, kila kila kiʻekiʻe 20, 25, 30 a me ke kila kila haʻahaʻa 16Mn.
6. Copper alloy: kūpono no ka wai, ka wai kai, ka oxygen, ka ea, ka aila a me nā mea hoʻolaha ʻē aʻe me PN≤2.5MPa, a me ka media mahu me ka mahana o -40 ~ 250 ℃. ʻO nā māka maʻamau i hoʻohana ʻia ʻo ZGnSn10Zn2 (tinā keleawe), H62, Hpb59-1 (keleawe), QAZ19-2, QA19-4 (ke keleawe alumini).
7. ʻO ke keleawe wela kiʻekiʻe: kūpono no ka mahu a me nā huahana petroleum me ke kaomi inoa PN≤17.0MPA a me ka mahana ≤570 ℃. ʻO nā māka i hoʻohana mau ʻia me ZGCr5Mo, 1Cr5M0, ZG20CrMoV, ZG15Gr1Mo1V, 12CrMoV, WC6, WC9 a me nā māka ʻē aʻe. Pono ke koho kiko'ī e like me ke kaomi valve a me nā kiko'ī wela.
8. Ke kila haʻahaʻa haʻahaʻa, kūpono no ke kaomi inoa PN≤6.4Mpa, ka mahana ≥-196 ℃ ethylene, propylene, liquefied maoli kinoea, wai nitrogen a me nā mea media ʻē aʻe, hoʻohana pinepine ʻia nā brands) e komo pū me ZG1Cr18Ni9, 0Cr18Ni9, 1Cr18Ni9Ti, ZG0Cr9Ti, ZG0Cr9Ti, ZG0Cr9Ti. kila acid-resistant steel, kūpono No ka nominal pressure PN≤6.4Mpa, ka mahana ≤200 ℃ nitric acid, acetic acid a me nā mea hoʻolaha ʻē aʻe, ʻo ZG0Cr18Ni9Ti, ZG0Cr18Ni10 nā mea hoʻohana maʻamau. , ZG0Cr18Ni12Mo2Ti, ZG1Cr18Ni12Mo2Ti

kiwi puuwai
ʻO ka valve core kahi ʻāpana valve e hoʻohana ana i kāna neʻe ʻana e hoʻokō i nā hana kumu o ka mana kuhikuhi, ka mana kaomi a i ʻole ka mana kahe.

Hoʻokaʻawale
E like me ke ʻano o ka neʻe ʻana, ua māhele ʻia i ke ʻano rotation (45 °, 90 °, 180 °, 360 °) a me ke ʻano unuhi (radial, directional).
E like me ke ʻano, hiki ke hoʻokaʻawale ʻia i spherical (ball valve), conical (plug valve), disc (butterfly valve, gate valve), dome-shaped (stop valve, check valve) a me cylindrical (reversing valve).
Hana ʻia me ke keleawe a i ʻole ke kila kila, aia nō nā plastics, nylon, ceramics, aniani, etc.
ʻO ke kumu o ka valve i loko o ka pahu hoʻohaʻahaʻa hoʻohaʻahaʻa puʻupuʻu kekahi o nā mea nui no ka mālama ʻana i ke kaomi.