Musamman hanyoyin sinadarai ruwan da ke cikin bututu galibi masu guba ne, rediyoaktif da haɗari.Ana amfani da bawul ɗin ƙofar tururi don hana zubar duk wani sinadari mai guba zuwa yanayi.Za a iya zaɓar kayan jiki daga duk kayan da ake da su, ana iya ba da bellow a cikin kayan daban-daban kamar 316Ti, 321, C276 ko Alloy 625.

• 1) Metal bellows hatimi mai motsi kara da kuma kara durability na cushe kara hatimin bawuloli.
• 2) .Bellows saka idanu tashar jiragen ruwa (na zaɓi): Za a iya haɗa wani toshe tare da sararin samaniya a sama da bellows don saka idanu akan aikin.
• 3) . Biyu sakandare kara hatimi: a) Backseat a bude wuri;b) Marufin zane.
• 7) Ba kamar yadda na gargajiya man shafawa dunƙule kawai ga kara thread, A man shafawa nono da aka tsara a kan bawul bonnet, za mu iya sa mai da kara, goro da bushing kai tsaye, ta hanyar maiko nono;
• 8) .Ergonomically tsara handwheel, tsawon sabis rayuwa, sauki aiki, mafi aminci kuma mafi abin dogara;