Since 1958, Check-All Valve® Mfg. Co. has manufactured a complete line of spring-loaded piston-type check valves, also known as silent check valves. We service customers all over the world in the ...

Check valves are installed in many piping systems. Their purpose is to allow flow in only one direction, which can be critical for plant safety and to protect equipment from damage. There are a few ...

(Reuters Health) - People who need a heart valve replaced often face a dilemma: should they have a mechanical valve made of graphite or a biological valve derived from a cow or pig? A new study ...

Valvular heart disease is a form of heart disease that occurs when one or more of the heart’s four valves don’t function properly. Valve replacement surgery may be an option if the valves of your ...