A21
Low-Friction Double-Lip O-Ring Energized Wiper
Heavy-duty wiper with redundant seal design. Redundant or multiple wiper lips are the most effective ways to improve a system’s sealing performance. Recessed straight wiping edge provides better protection from debris and aggressive dirt exclusion without scratching the rod. Secondary beveled seal lip facing the opposite side collects any leakage from the rod seal, providing for the driest rod sealing available. To prevent a pressure trap, it is important to use one of our long-life rod seals or S92 buffer seals that allow pressure relief; otherwise, a pressure-relief port must be present between the rod seal and wiper. Retro fits wipers of similar design.