Symmetrical Y-Shaped Profile: Dual sealing lips arranged in a Y-configuration, providing identical sealing performance for rod extension and retraction strokes.
Pressure-Relieving Central Cavity: A void between the sealing lips that allows fluid to pressurize both lips evenly, ensuring balanced activation.
Flexible Lip Geometry: Each lip features optimized thickness and angle for responsive pressure activation with minimal friction.
Stabilizing Base: Wide, reinforced heel section prevents rolling or twisting in the gland.
Monolithic Construction: Single-component design manufactured from advanced polyurethane or engineered elastomers.
Description
The PRY-Type Piston Rod Seal (Pressure-Relieving Yoke seal) is a precision-engineered, bidirectional hydraulic sealing element designed for medium to heavy-duty piston rod applications requiring balanced sealing performance, low friction, and extended service life. Its distinctive Y-shaped cross-section provides symmetrical sealing lips that deliver consistent leak control in both stroke directions, making it an ideal choice for double-acting hydraulic cylinders.
Symmetrical Y-Shaped Profile: Dual sealing lips arranged in a Y-configuration, providing identical sealing performance for rod extension and retraction strokes.
Pressure-Relieving Central Cavity: A void between the sealing lips that allows fluid to pressurize both lips evenly, ensuring balanced activation.
Flexible Lip Geometry: Each lip features optimized thickness and angle for responsive pressure activation with minimal friction.
Stabilizing Base: Wide, reinforced heel section prevents rolling or twisting in the gland.
Monolithic Construction: Single-component design manufactured from advanced polyurethane or engineered elastomers.
Original text from: pneumatic seal https://www.bszzseal.com/
