safety valve drawing used on silos

The safety valve is used on cement silo.It is an important part of silo safety system.For a correct operation the application of a pressure relief valve is necessary in order to discharge possible pressure inside the silo, as well as negative pressure. In fact, there is pressure once you fill the silo and negative pressure when you empty it.
 

1. Water-proof--Stainless steel/ Engineering plastics
2. valve plate-- Carbon steel / Stainless steel,  Black special sealing rubber mat 
   
3. Valve body-- Carbon steel surface coating/ Stainless steel
   
4. Connection--Flange connection,  With gasket, embrace hoop connection, With seals 

Stainless steel cap

Plastic cap

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