PTFE Spring Energized Rod Seal for .5" Rod or .688" Piston Bore

Spring energized seals are made of chemical resistant high temperature ptfe that is supported with a spring to help maintain its shape and sealing force. they are used as alternatives to rotary shaft seals, rod seals, and piston seals, and provide greater sealing power in harsh environments. for light duty service, and has extremely low friction and excellent chemical resistance. excellent chemical resistance.