Hoʻokomo ʻia ka valve palekana ma luna o nā mea hana, pahu a pipeline paha e pale i ka overpressure.Ke ʻoi aku ka nui o ke kaomi i loko o ka pahu a i ʻole pipeline ma mua o ka waiwai i ʻae ʻia, e wehe koke ka valve e hoʻokuʻu i ka waena;Ke hāʻule ke kaomi i ka waiwai i ʻōlelo ʻia, e pani koke ka valve.
Hiki ke hoʻokaʻawale ʻia ka valve palekana i ke ʻano hana pololei a me ke ʻano hana hoʻokele e like me nā ʻano hoʻokele like ʻole.ʻO ke ʻano pololei ke alakaʻi pololei ʻia e ke kaomi ʻōnaehana ma ka inlet valve.I kēia manawa, lanakila ʻo ia i ke kaomi waena ma lalo o ka disc valve e ka ukana mechanical i hāʻawi ʻia e ka puna a i ʻole ka hāmare kaumaha.Hoʻokele ʻia ke ʻano pailaka e kahi hale, e hoʻohana ana i ka mīkini e hoʻokuʻu a hoʻohana paha i kahi mana pani e wehe a pani i ka pahu palekana.
Hiki ke hoʻokaʻawale ʻia nā valve palekana i:
1. Pūnaʻi ʻano palekana valve
E hoʻohana i ka ikaika o ka punawai hoʻoemi e kaulike i ke kaomi o ka disc valve, i hoʻopaʻa ʻia ka pahu palekana.Loaʻa i ka valve palekana nā mea maikaʻi o ka naʻau kiʻekiʻe, portability a me ke kūlana kau palena ʻole.Hoʻohana mau ʻia kēia ʻano valve palekana.ʻO ka hemahema ʻo ia ka hoʻololi ʻana o ka ikaika hoʻoemi o ka puna me ka deformation o ka puna.Ke kiʻekiʻe ka mahana, loaʻa i ka pūnāwai ka wela a me nā pilikia hoʻopau wela.
2. Lever a me ka hāmare kaumaha pahu hopu
Hoʻonui ʻia ka ikaika o ka hāmare kaumaha e ka lever a hoʻouka ʻia ma ka disc valve.ʻO ka pōmaikaʻi, ʻaʻole i hoʻololi ʻia ka ikaika i hoʻouka ʻia ma ka disc valve i ka wā o ka wehe ʻana a me ka pani ʻana o ka valve.ʻO ka hemahema ʻo ia ka maʻalahi i ka haʻalulu a maikaʻi ʻole ka hana reseating.Hoʻohana maʻamau i nā mea hana paʻa.
3. Pulse type palekana valve
Hoʻolālā ʻia ka valve nui a me ka valve auxiliary e hoʻokele i ka valve nui ma o ka hana pulse o ka valve auxiliary.Hoʻohana maʻamau ia i ke anawaena nui, ka neʻe nui a me nā ʻōnaehana kiʻekiʻe.

 

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