The main characteristic of the hooked profile of the BWH wiper is to enable easy and fast installation into a complete open housing, both automatically and manually.
The groove is completely open with a lateral milling, which allows the wiper to be replaced easily.
The special profile combining seal and wiper is very strong and allows important rod misalignments without any danger of ejection from the seat. Moreover, the static lips profile keeps the cylinder free from outside impurities.
Standard compound reference: B0
Alternative compound reference: C0
The wiper should be lubricated internally during installation. The external lubrication of the
wiper and housing is not recommended due to the ejection risk of the wiper. It is important to remove cutting edges and flashes in the housing to prevent damages of seal during assembling.