Qodobbada ugu muhiimsan ee Doorashada Valve iyo Nidaamka Tuubbooyinka
                  	 				 		  			 	 	 	 		 	   | Tixgelinta shaqada iyo adeegga | 
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  | Xulashada | 
  | Valves waxay u adeegaan ujeedada lagu xakameynayo huurka dhismaha adeegyada tuubooyinka.Nalves waxaa lagu soo saaraa noocyo kala duwan oo nashqad ah iyo qalab. | 
  | Xulashada saxda ah waa muhiim si loo hubiyo habka ugu waxtarka badan, ugu waxtarka badan iyo kuwa muddada dheer jira. | 
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  | Shaqada | 
  | Valves waxaa loogu talagalay inay qabtaan afar hawlood oo muhiim ah: | 
  | 1.Bilaabida iyo joojinta socodka | 
  | 2.Regulating (Ceejinta) socodka | 
  | 3. Ka hortagga dib u noqoshada qulqulka | 
  | 4. Habaynta ama yaraynta cadaadiska socodka | 
  |  | 
  | Tixgelinta Adeegga | 
  | 1. Cadaadis | 
  | 2. Heer kulka | 
  | 3. Nooca dareeraha | 
  | a) dareere | 
  | b) Gaas; ie, uumi ama hawo | 
  | c) Wasakh ama xoqid (nesive) | 
  | d) Burbursan | 
  | 4. Socod | 
  | a) Cuncunid joogto ah | 
  | b) Baahida loo qabo in laga hortago dib u noqoshada socodka | 
  | c) Welwelka cadaadiska hoos u dhaca) xawaaraha | 
  | 5. Xaaladaha shaqada | 
  | a) Uumiga | 
  | b) Inta jeer ee hawlgalka | 
  | c) Helitaanka | 
  | d) Baaxadda guud ee la heli karo | 
  | e) Kantaroolka gacanta ama si toos ah | 
  | f) Baahida xidhidh xumbo adag |