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Working principle of the VE Dual Expanding Plug Valve


DBB Valve is open

Valve is open

When the valve is fully open, both seals are protected from the flow path

DBB Valve is closing  

Valve is closing

plug is rotating 

Valve plug and slips rotate to place seals in closing position, during rotation there is no contact between the body and seals.
Valve is almost closed  

Valve is almost closed

expansion of the slips 

Once the plug has rotated 90°, the slips expand onto the body seats without causing any wear or abrasion to the seals.
Valve is closed  

Valve is closed

Double Block & Bleed

The elastomer seals are fully compressed.


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© 2017 This is a printed version of ERIKS VE Dual Expanding Plug Valve.