Q: I had to turn off the water supply valve at the top of my water heater. So I turned it, but it kept on turning and turning without shutting off the water. A neighbor of mine said it is a gate valve ...

Left Atrial "Pinball" Thrombus Causing Recurrent Syncope. Aberrant right coronary artery in a grown up congenital cardiac patient, successfully treated 46 years earlier with a double Starr-Edwards ...

By combining advanced seat and seal concepts with durable materials and quality manufacturing, subsea valves can maintain leak-tight isolation, operational safety and system reliability throughout ...