HPU (Hydrolysis-Resistant Polyurethane) seals are designed for high-pressure applications and rapid cycles, typical of automatic filling systems.
Guide rings and wear rings are used to maintain perfect coaxial alignment between the rod and cylinder, preventing issues during the piston’s linear and rotary movements.
Energized seals, or Lip Seals, consist of a structure made of virgin/filled PTFE, incorporating an energizing spring in stainless steel 302 or exotic alloy (the most commonly used being Elgiloy®).