E nānā i ka valvee pili ana i ka valve e wehe 'akomi ana a pani i ka pahu valve ma ka hilinai ana i ke kahe ana o ka medium ponoi e pale aku i ka backflow o ka medium, i ikeia hoi he check valve, one-way valve, reverse flow valve and back pressure valve.ʻO ka valve check he valve aunoa nona ka hana nui e pale ai i ka hoʻihoʻi ʻana o ka waena, ka hoʻohuli ʻana o ka pāpaʻi a me ke kaʻa kaʻa, a me ka hoʻokuʻu ʻana o ka mīkini pahu.Hiki ke hoʻohana ʻia nā kiwi hoʻopaʻa ma nā laina e hāʻawi ana i nā ʻōnaehana kōkua kahi e piʻi ai ke kaomi ma luna o ke kaomi ʻōnaehana.
1. Hoʻohana ʻia ʻo Wafer check valve:
Hoʻokomo ʻia ka valve check i loko o ka ʻōnaehana pipeline, a ʻo kāna hana nui ka pale ʻana i ka backflow o ka waena.ʻO ka valve check he valve aunoa i wehe ʻia a pani ʻia ma muli o ke kaomi o ka mea waena.Wafer check valveua kūpono no ka helu kaomi PN1.0MPa ~ 42.0MPa, Class150 ~ 25000;anawaena inoa DN15~1200mm, NPS1/2~48;ka mahana hana -196 ~ 540 ℃ ma nā paipu like ʻole, hoʻohana ʻia e pale i ka hoʻihoʻi ʻana o Medium.Ma ke koho ʻana i nā mea like ʻole, hiki ke hoʻopili ʻia i nā media like ʻole e like me ka wai, ka mahu, ka aila, ka waikawa nitric, ka waikawa acetic, ka medium oxidizing ikaika a me ka uric acid.
ʻO ka lua, ʻo ka mea nui o ka wafer check valve:
Aia nā hao hao, kalapona kila, haʻahaʻa haʻahaʻa kila, pālua ʻāpana kila (F51/F55), titanium alloy, alumini keleawe, INCONEL, stainless steel SS304, SS304L, SS316, SS316L, chrome molybdenum kila, Monel (400/500), 20 # alloy, Hastelloy a me nā mea metala ʻē aʻe.
3. ʻO nā hiʻohiʻona o ka pahu wafer check valve:
1. He pōkole ka lōʻihi o ke kūkulu ʻana, a ʻo kona lōʻihi ka lōʻihi he 1/4 ~ 1/8 wale nō ia o ka pahu hoʻokele flange maʻamau.
2. ʻO ka liʻiliʻi liʻiliʻi a me ke kaumaha māmā, ʻo kona kaumaha he 1/4 ~ 1/20 wale nō o ka pahu loiloi flange maʻamau.
3. Paʻa koke ka disc valve a liʻiliʻi ke kaomi hāmare wai
4. Hiki ke hoʻohana ʻia nā paipu ʻelua a i ʻole nā paipu kūpaʻa, maʻalahi ke hoʻouka
5. He maʻalahi ke kahawai kahe a he liʻiliʻi ke kū'ē o ka wai
6. ʻO ka hana koʻikoʻi a me ka hana sila maikaʻi
7. He pōkole ka hele ʻana o ka disc valve a he liʻiliʻi ka hopena hopena
8. He maʻalahi a paʻa ka hoʻolālā holoʻokoʻa, a nani ke ʻano
9. ʻO ke ola lōʻihi a me ka hana hilinaʻi
ʻO ka hā, ʻo nā hewa maʻamau o ka valve check:
1. Ua haki ka disc valve
ʻO ke kaomi o ka mea waena ma mua a ma hope o ka pahu hoʻopaʻa i loko o ke ʻano kaulike pili a me ka "saw".Paʻi pinepine ʻia ka disc valve me ka noho valve, a ua haki ka disc valve i hana ʻia me kekahi mau mea palupalu (e like me ka hao hao, keleawe, etc.).ʻO ke ʻano pale ʻana, ʻo ia ka hoʻohana ʻana i ka valve check me kahi diski ma ke ʻano he mea ductile.
2. Kaho hope waena
Ua poino ka ili hoailona;paʻa nā haumia.Ma ka hoʻoponopono ʻana i ka ʻili o ka sila a me ka hoʻomaʻemaʻe ʻana i nā mea haumia, hiki ke pale ʻia ka backflow.
Ka manawa hoʻouna: Iulai-15-2022