Standard Material: NBR Nitrile Rubber (oil & mud resistant);Optional FKM Fluoroelastomer for high temperature harsh well conditions
Hardness: Shore A 90 (anti-extrusion under high mud pressure)
Working Medium: Water-based drilling fluid, mud with quartz sand solid particles, hydraulic oil
Medium Temperature Range: -30℃ ~ +95℃ (NBR); up to 150℃ (FKM)
