Ductile Iron muviri, SS304 disc butterfly vharafu yakakodzera kune isina kusimba corrosive medium.Uye nguva dzose inoshandiswa kune isina simba acids, mabhesi uye mvura uye steam.Kubatsira kweSS304 ye disc ndeyekuti ine hupenyu hurefu hwesevhisi, kuderedza nguva dzekugadzirisa uye kuderedza mari yekushandisa.Diki saizi lug mhando butterfly vharafu inogona kusarudza ruoko lever, kubva kuDN300 kusvika kuDN1200, tinogona kusarudza giya rehonye.