O Ring Running Friction

Chlorination is a permanent process that can be applied to existing stock o rings or seals to provide a much smoother seal surface with reduced running friction in dynamic applications.

O ring running friction. Running friction high running friction may cause difficulty by wearing soft metal parts. The axial friction maximum friction stress and maximum contact stress of the o ring are analysed using finite element method as the confining pressure varying from 50 to 300 kpa. A second o ring may be used for the wiper but it must not actually seal because a pressure trap condition is likely to develop between two reciprocating o ring seals. Metals such as copper brass or aluminum can be rapidly worn away by a moving o ring this is especially true if high pressures are involved.

The improvement in break out friction with a chlorinated o ring or seal is negligible but a chlorinated o ring can be used in combination with external. This is especially true if high pressures are involved. Since this can easily be forgotten it is preferable to provide a vent hole between the two o rings. If unexplained leakage occurs with these or other soft metals it is good practice to check the metal dimensions for.

High running friction may cause difficulty by wearing soft metal parts. Metals such as copper brass aluminum can be rapidly worn away by a moving o ring.