The cause of death for Skyview football player William Sloan was sudden cardiac death ... due to fatal dysrhythmia and myxomatous mitral valve disease. According to the Mayo Clinic, myxomatous ...

Abstract: Pneumatic-hydraulic actuated ball valves are critical components in pipeline rupture protection and emergency shutdown systems for large-diameter natural gas transmission pipelines.

Vaal River system update: 6 valves opened at Vaal Dam to increase outflows and manage levels, Bloemhof releases at 400 mᵌ/s The Department of Water and Sanitation (DWS) has opened 6 valves at the Vaal ...