ED ring is one of the many seals for industrial use.It can be used
as a special seal for pneumatic and hydraulic joints such as pipe
joints,hydraulic plugs,and transition joints,with better sealing
effects than traditional O-rings.This elastomer seal can be applied
to threaded ports and screw ends as an axial static seal.There is
hardly and change with the cross-section under high
pressure.Folon.A took the lead in China in initiating the
manufacture of ED rings that satisfies the DIN3869 standard,and
still maintains its leading position in the market.