Seals the rod allowing to change the packing without upwelling risk.
Quick action (zinc plated forged steel handles are provided).
Inner surfaces machined, guarranting optimal sealing.
Allows the depth pump to pass through and lift the rod string without disassembling the bridge.
TULSA exclusive design, the cilindrical section improving sealing with less torque.
Handles sealed by O-ring instead of packing, improving sealing reliability.
Outter surface protected by an anticorrosive cover.
Piston closing mechanism, allowing the total closure of the passage.
Low installation time.
