ductile iron rubber seal butterfly valve

ʻO Henry Pratt Company kahi mea hana nui o nā valves a me nā pono, me ka ʻoi aku o 60 mau makahiki o ka ʻike i ka hāʻawi ʻana i nā lawelawe i ka ʻoihana mana. Ua hoʻolauna ʻia ʻo Pratt i ka ʻoihana mana ma o ka hana mālama ʻana ma ka Edison Federal Building ma Chicago. ʻO ka pūnaewele kekahi o nā mea hana mana nui o Edison i kēlā manawa. I loko o nā paipu wai kahi ʻaʻohe valve a liʻiliʻi ke keʻena poʻo, pono kahi valve. Ua noi ʻia ʻo Henry Pratt Company e hoʻolālā i kahi pahu paʻa e hoʻonā i kēia pilikia. ʻO ka hopena o ka hoʻolālā ʻana he valve butterfly noho elastic, kahi lā e lilo i huahana nui o ka hui. A hiki i ka waena o 1940s, ua hoʻomau ʻo Pratt & Whitney i ka hana ʻana i nā kiwi lele lele e like me ke kūlana, akā ma hope o ke Kaua Honua II, ua hoʻoholo ʻo Pratt lāua ʻo Whitney e hoʻomohala iā ia i laina o ka mana a me ka wai. I kēia lā, ua lilo ʻo Henry Pratt i alakaʻi i ka mākeke uila a me ka wai. ʻO ka 1100 series nuclear water valve he ASME level 2 a me 3 nuclear safety-related water supply butterfly valve, mai ka 6 iniha a 36 iniha (a ʻoi aku ka nui e like me ka mea e pono ai). He kūpono ka helu hoʻolālā no ka helu kaomi maʻamau o ANSI 150 #. No nā valve ʻoi aku ka nui ma mua o ka pae lawelawe 24in a me 75 psig, hoʻokō lākou i nā koi o ASME Sec. Hāʻawi i ka III code category 1678. ʻO nā hiʻohiʻona hoʻolālā o ka 1100 series e loaʻa i kahi kino valve flanged i hana ʻia i nā mea e kū ana me SA-216, Gr. WCB a i ʻole SA-516, Gr. 70; ʻO ka disc valve, hiki ke hana ʻia a hoʻolei ʻia paha, a i ʻole i hana ʻia me ke kila kalapona, ʻoiai ʻo ka disc carbon steel he lihi noho pahu kila kila e uhi ana i ka laulā holoʻokoʻa o ka ʻili e kau ana; a me kahi noho pahu pahu, i hoʻopaʻa mau ʻia a i ʻole mechanically paʻa ma ka valve I loko o ke kino, ʻaʻohe mea hoʻopaʻa kaula i koi ʻia. Hiki ke hana ʻia ka ʻāpana valve he ʻāpana ʻāpana hoʻokahi e hoʻonui i ka disc valve, a i ʻole hiki ke haku ʻia me kahi ʻāpana ʻelua ʻāpana i hoʻokomo ʻia i loko o ka hub disc valve. ʻO ka 1200 series nuclear air valve ʻo ia ka ASME Class 2 a me ka Class 3 nuclear safety related ea butterfly valve, mai ka 6in a 48in. ʻO ka pae hoʻolālā e like me ka 1100 series. E like me ka 1100 series, ʻo nā hiʻohiʻona hoʻolālā o ka series 1200 e loaʻa i kahi kino flange, kahi pahu pahu pahu kila prefabricated a i hoʻolei ʻia paha me kahi noho paʻa paʻa a hiki ke hoʻololi ʻia, a hiki i ke kumu valve ke lilo i hoʻokahi ʻāpana a i ʻole hoʻokahi- ʻāpana ʻāpana . ʻĀpana ʻāpana ʻelua. ʻO ka 1400 series nuclear water valve he ASME level 2 a me 3 nuclear safety related water supply butterfly valve, mai ka 3 iniha a 24 iniha. Pili ka helu hoʻolālā i ka helu kaomi maʻamau ANSI 150#. ʻO nā hiʻohiʻona hoʻolālā a me nā mea hoʻolālā o ka 1400 series e like me nā mea o ka 1100 series, a ua like kā lākou hoʻohana. Ua hoʻokō ʻia ka valve butterfly-sealed Triton XR-70 i nā koi o AWWA C504, me ka nui mai 24 iniha a 144 iniha. ʻO ke ʻano o ke kino valve maʻamau he flange x flange end, mechanical joint (MJ) end (24in-48in) a me flange a MJ end (24in, 30in and 36in). ʻO nā hiʻohiʻona o Triton e pili ana i ka hoʻolālā noho ʻo Pratt E-Lok a me ka hoʻolālā pā holo. Hoʻolālā ʻia ka hoʻolālā noho valve E-Lok, a ua hoʻokomo ʻia ka noho valve rubber i loko o ke kino valve e hāʻawi i kahi pani paʻa ea. Hoʻohālikelike ʻia me nā hoʻolālā disc ʻē aʻe i kēia manawa ma ka mākeke, loaʻa i ka hoʻolālā disc circulation ka ikaika kiʻekiʻe me ke kaumaha māmā. Ka loulou hui www.henrypratt.com