The WVN wiper can be self-aligned in case of rod misalignment during
operations, due to its special profi le and design, WVN is a double lip
Wiper in TRIATHANE® (Poly-Urethane) material, mostly suggested to be
used in conjunction with a back pumping Primary Seal/Secondary Seal,
like TRITILT®(RSS Style) Seal. The inner lip holds the fi lm of oil within the
system without being leaked out and the outer lip shall prevent any dust
particles entering the system.