What is the definition of a Picv valves? Picv valves are a type of flow control valve that is used to regulate the flow of water in a system. They are specifically designed to provide precise and accurate control of the flow of both hot and cold water. Picv valves are primarily used in commercial and industrial buildings such as schools, hospitals, and factories for controlling the water distribution system. This type of valve is often used in combination with other valves such as relief valves, ball valves, and pressure reducing valves. Picv valves are able to reduce water pressure and make sure that the water pressure is at the desired level. Additionally, they can reduce water flow and make sure that the water flow is not too high, which can lead to water hammering. The valve is normally mounted onto the top of the pipe and is opened and closed by a handwheel. This type of valve is typically made from stainless steel, brass, or bronze and is designed to last for many years with