The double wiper AI-D is an elastomer wiper that can
be used in the same housing as the standard AI wiper.
The wiping lip at the inner diameter of the seal so ensures
that minimum leakage oil films remain in the system,
and prevents dust and dirt particles from sticking
to the extending piston rod.
The double wiper AI-D should generally be used in
combination with rod sealing systems of the slide and
O-ring type. However, they may also be used with lip
seals without any problem.