Nā kiwikā hōʻoia waferua ʻike ʻia hoʻi he mau kiwikā hoʻihoʻi, nā kiwikā hoʻihoʻi, a me nā kiwikā hoʻihoʻi. Hoʻomaka a pani ʻia kēia ʻano kiwikā e ka ikaika i hana ʻia e ke kahe o ka mea ponoʻī i loko o ka pipeline, no kekahi ʻano kiwikā hana.
ʻO ke kiwikā nānā e hilinaʻi i ke kahe o ka medium ponoʻī a wehe a pani koke i ka ʻaoʻao o ke kiwikā, i hoʻohana ʻia e pale i ke kiwikā hoʻi hope o ka medium, i ʻike ʻia hoʻi ʻo ke kiwikā nānā, kiwikā nānā, kiwikā hoʻi hope, a me ke kiwikā kaomi hope. No ke kiwikā nānā kahi ʻano kiwikā aunoa, ʻo kāna hana nui ka pale ʻana i ke kahe hoʻi hope o ka media, pale i ka hoʻohuli ʻana o ka pamu a me ka hoʻokele kaʻa, a me ka hoʻokuʻu ʻana o ka media ipu. Hiki ke hoʻohana ʻia nā kiwikā nānā e hāʻawi i ke kaomi e piʻi aʻe ma mua o ke kaomi ʻōnaehana o ka ʻōnaehana kōkua e hāʻawi i kahi pipeline lako. Hiki ke hoʻokaʻawale ʻia ke kiwikā nānā i kahi kiwikā nānā swing (e like me ke kikowaena o ka wili umekaumaha) a me kahi kiwikā nānā hāpai (e neʻe ana ma ke axis).
ʻO ka mea mua, ʻo ka hoʻohana ʻana i ka valve nānā clip-on i hoʻokomo ʻia i loko o ka ʻōnaehana paipu, ʻo kāna hana nui ka pale ʻana i ke kahe hope o ka media, ʻo ka valve nānā kahi ʻano valve aunoa e hilinaʻi ana i ke kaomi media e wehe a pani. He kūpono ka valve nānā clamp no ke kaomi nominal PN1.0MPa ~ 42.0MPa, Class150 ~ 25000, ke anawaena nominal DN15 ~ 1200mm, NPS1/2 ~ 48, ka mahana hana -196 ~ 540 ℃ o nā pipelines like ʻole, i hoʻohana ʻia e pale aku i ke kahe hope o ka media. Ma o ke koho ʻana o nā mea like ʻole, hiki ke hoʻopili ʻia i ka wai, ka mahu, ka ʻaila, ka waikawa nitric, ka waikawa acetic, nā media oxidizing ikaika a me ka uric acid a me nā media ʻē aʻe.
ʻO nā mea nui o ka valve hōʻoia wafer he kila kalapona, kila haʻahaʻa haʻahaʻa, kila duplex (SS2205 / SS2507), titanium alloy, alumini keleawe, Inconel, SS304, SS304L, SS316, SS316L, chrome-molybdenum steel, Monel (400/500), 20 # alloy, Hastelloy a me nā mea hao ʻē aʻe.
ʻO ke kolu, nā kūlana a me nā loina o ka valve hōʻoia wafer
Hoʻolālā：API594、API6D、JB/T89372、
Ka lōʻihi o ke alo a i ka maka：API594、API6D、DIN3202、JB/T89373、
Ka helu kaomi a me ka mahana：ANSI B16.34、DIN2401、GB/T9124、HG20604、HG20625、SH3406、JB/T744、
Kūlana hoʻāʻo a me ka nānā ʻana: API598, JB/T90925
Nā Flanges Paipu：JB/T74~90、GB/T9112-9124、HG20592~20635、SH3406、ANSI B 16.5、DIN2543-2548、GB/T13402、API605、ASMEB16.47
ʻO ka hā, nā ʻano hoʻonohonoho o ka pinch check valve
1. ʻO ka lōʻihi o ke kūkulu ʻana he 1/4 ~ 1/8 wale nō o ka lōʻihi o kona kūkulu ʻana o ka valve nānā flange swing kuʻuna.
2. liʻiliʻi ka nui, māmā ke kaumaha, ʻo kona kaumaha wale nō ka valve nānā flange kuʻuna 1/4 ~ 1/2
3. pani koke ka ʻaoʻao valve, liʻiliʻi ke kaomi o ka hāmare wai
4. Hiki ke hoʻohana ʻia nā paipu pālahalaha a kū pololei paha, maʻalahi e hoʻouka
5. Ke ala kahe mālie, pale wai haʻahaʻa
6. Hana maʻalahi, hana sila maikaʻi
7. He pōkole ka hahau ʻana o ka disc, he liʻiliʻi ka hopena pani
8. He maʻalahi a paʻa ka ʻōnaehana holoʻokoʻa, a he nani ke ʻano
9. Ke ola lawelawe lōʻihi a me ka hana hilinaʻi
ʻelima. Ka hana sila o ka valve hōʻoia wafer Hiki i ka valve hōʻoia wafer sila palupalu ke hoʻokō i ka leakage ʻole, akā ʻaʻole ka valve hōʻoia wafer sila paʻakikī he valve leakage ʻole. Loaʻa iā ia kahi helu leakage. Wahi a ke kūlana nānā o API598, no ka valve hōʻoia me ka noho metala, no ka nui o DN100, ʻo ka helu leakage wai i kēlā me kēia minuke he 12CC.
