ШАЙБА Caterpillar 7J6849

The Hydraulic Valve Backup Washer is a sealing support component used within hydraulic valve assemblies to reinforce primary sealing elements during pressure operation. It works alongside soft seals such as O-rings to prevent deformation or extrusion when exposed to high hydraulic pressure. It ensures the seal retains its shape and maintains consistent contact within the sealing groove. The washer controls seal displacement during pressure spikes and dynamic flow changes inside the valve system. Its presence enhances pressure containment and prevents internal leakage between valve passages.Attributes:• Maintains sealing effectiveness during continuous directional switching.• Protects sealing components from distortion during high load cycles.• Allows seals to perform effectively during repeated actuation cycles.Applications: The Hydraulic Valve Backup Washer is installed within hydraulic valve assemblies and reinforces sealing elements, ensuring stable pressure containment during fluid control operations.