Premium graphite oil seal packing ring devised for high temperature applications, ensuring reliable performance in hot oil pumps. Exceptional temperature resistance ranging from -150℃ to +850℃, making it suitable for extreme conditions. Durable construction with and wear-resistant properties, ensuring longevity and reliability in various applications. Standard square cross-section allows for easy installation and compatibility with a wide range of high pressure valves and plunger pumps. Manufactured from 98% pure graphite without fillers or adhesives, guaranteeing superior sealing performance and ., Manufacturer: EZWZGBQPS