Kelly Valve
1. Kelly Valve Manual 90° Operation - Engages/disengages instantly by turning a specialized wrench 90° along indicated direction - Visual stem position indicator ("ON"/"OFF") for unambiguous status confirmation 2.Kelly Valve Spring-Assisted Sealing System - Features a spring-loaded lower seat that forces the ball into tight contact with upper seat - Creates metal-to-metal seal capable of 15,000+ psi pressure containment
