Valvule ya papillon ya diamètre mkubwa

I. Gushyira mu gaciro ibicuruzwa:
Imipira ya disiki (butterfly valve) ifite imisumari y’ibyuma (metal seal) irambye kurusha imipira ifite imisumari ya elastike, ariko biragoye kuyikora neza cyane. Imisumari y’ibyuma ishobora kwihanganira ubushyuhe bwo hejuru, ariko imisumari ya elastike ifite ikosa ry’ubushyuhe. Imipira ya disiki ifite ubunini bunini, imipira ya disiki ya “wafer” (ifite ubwoko bw’uburyo bwo kuyishyira) ifite ubwubatsi busobanutse, ubunini bucye, uburemere bucye, kandi igizwe n’ibice bike gusa. Kandi bihagije kuyikuramo imyaka 90 gusa kugirango uyikoreshe byoroshye, kandi uyu mupira ufite imikorere myiza yo kugenzura umwuka. Iyo mupira wa disiki uri mu mwanya wo gufungura neza, uburebure bw’ibice byo gufungura (disc) ni byo byuma byo gukomera umwuka iyo urimo ugenda mu mupira, bityo umuvuduko w’umwuka uva mu mupira ubu ubu ugabanuka cyane, bityo ufite imikorere myiza yo kugenzura umuvuduko w’umwuka. Imipira ya disiki ifite ubwoko bubiri bw’imisumari: imisumari ya elastike n’imisumari y’ibyuma. Mu mipira ifite imisumari ya elastike, imisumari irashobora gushyirwa mu mupira cyangwa ihuza ibice byo gufungura (disc).

II. Ibyo ibicuruzwa bifite:
1. Uyu mupira ufite ubwoko bw’imisumari ya “triple offset” (ubwoko bw’uburyo bwo kuyishyira butatu), umupira n’ibice byo gufungura (disc) ntibashobora gukora imyanda, kandi ifite imikorere yo gukomera byimbitse iyo ushaka.

2. Imisumari ikozwe mu byuma byo gukora ibintu byo mu gikoni (stainless steel), ifite inyungu zombi z’imisumari y’ibyuma byoroshye n’imisumari ya elastike, kandi iyo ari mu bushyuhe bucye cyangwa buhebuje, ifite imikorere myiza yo gukomera, ifite imikorere yo kurwanya umwanda, kandi irambye cyane.

3. Imisumari y’ibice byo gufungura (disc) ifite ibice byo gukora ibintu byo mu gikoni (hardfacing) byo mu gikoni (cobalt-based alloy), imisumari irarwanya imyanda, kandi irambye cyane.

4. Ibice byo gufungura (disc) by’ubunini bunini bifite ubwubatsi bw’uburyo bwo kuyishyira (truss structure), ifite ubwenge buhebuje, umuvuduko w’umwuka ugenda byoroshye, kandi umuvuduko w’umwuka ubanza.

5. Uyu mupira ufite imikorere yo gukomera mu buryo bubiri, ntibashobora kugabanuka n’umuvuduko w’umwuka iyo ushyira, kandi ntibashobora kugabanuka n’ubwoko bw’aho ushyira, bityo ushobora kuyishyira mu buryo bwose.

6. Ibikoresho byo gukora (actuator) birashobora gushyirwa mu byiciro byinshi (kugenda imyaka 90 cyangwa 180), bihagije kugirango abakoresha bakoreshe byoroshye.

III. Aho ibicuruzwa bikoreshwa:
1. Bikoreshwa mu mirimo ya asidi (sulfuric acid) mu mirongo y’umwuka: imipira y’umwuka imbere ya umuriro, imipira y’umwuka imbere ya umwuka, imipira ya “electrostatic precipitator” (imipira yo gucamo umwuka) n’imipira ihuza, imipira y’umwuka imbere ya umwuka wa SO2, imipira yo gukora ibintu, imipira y’umwuka imbere ya imipira yo gukora ibintu, n’ibindi bikoresho byo kugenzura no gufunga umuvuduko w’umwuka.

2. Bikoreshwa mu mirimo ya sulfuric acid mu mirimo ya “sulfur burning”, “conversion”, “drying and absorption”, ni imipira ikozwe mu mirimo ya sulfuric acid, abakoresha benshi bavuga ko ifite imikorere myiza yo gukomera, ikora byoroshye, irarwanya umwanda, irarwanya ubushyuhe, ikoreshwa byoroshye, ifite umutekano, kandi yafatiwe cyane cyane.

3. Bikoreshwa kandi mu mirimo ya kemika, petrochemical, metallurgy, medisini, ibyokurya n’ibindi mu mirongo ya SO2, umwuka w’umwuka, umwuka w’umwuka, umwuka wa ammonia, umwuka wa CO2, amavuta, amazi, umunyu, amazi ya alkali, amazi ya mbuzi, nitric acid, hydrochloric acid, phosphoric acid n’ibindi bikoresho nk’ibikoresho byo kugenzura no gufunga umwuka.

IV. Amakuru y’ibicuruzwa:

V. Ibikoresho by’ibice: