Ultracentrifugation Tube, Open-Top / Self-Seal, PA, 11x60mm, 50 pieces

Self-Seal Caps

Self-Seal caps seal standard open-top thin wall polyallomer tubes by centrifugal forces. No torque wrench is required to tighten the cap as the two- pieces assembly causes a seal when the gold anodized aluminum body down against the titanium seal ring during centrifugation.

Typically, the bulk fluid contents are first added to the tube and the aluminum body is pushed into the top of tube.The titanium ring is slipped over the bottom of the tube and then upward until it contacts the body at the top.

Additional gradient and sample is then added through a fill hole in the cap body to completely fill the tube. A setscrew is turned into the top of the fill hole and sealed against a nylon bushing at the bottom of the fill hole. The assembly is placed into the fixed-angle rotor hole.