Iindidi zeevalvu zesango.

Umgaqo osebenzayo wevalve yesango yesandla: Jikelezisa ivili lesandla. Ngokudibana kunye nokungabandakanywa kwemisonto phakathi kwevili lesandla kunye nesiqu sevalve, phakamisa okanye uhlise ipleyiti yevalve eqhagamshelwe kwisikhondo sevalve, ngaloo ndlela ufezekise imisebenzi yokuvula nokuvala.

Ngokwemathiriyeli yeqokobhe,iivalve zesangoingahlelwa ngolu hlobo:

1. Iivalvu zentsimbi yesinyithi: ezifana ne-carbon steel valves, i-valve yensimbi ye-alloy, i-valve yensimbi engenasici, i-valve ye-iron cast, i-titanium alloy valves, i-Monel valves, i-copper alloy valves, i-lead alloy valves, njl.

2. Iivalve zentsimbi ezifakwe emzimbeni: ezinjengeevalve ezine-rubber-lined, i-fluorine-lined valves, i-lead-lined valves, i-plastic-lined valves, i-enamel-lined valves.

3. Iivalvu zemathiriyeli ezingezizo ezentsimbi: ezinjengeevaluvu zeceramic, iivalvu zeglasi, kunye neevalvu zeplastiki.