Valves for various applications

Valves for various applications are parts for stopping or passing through fluids such as gases and liquids and controlling such flow rates. They are placed in piping systems through which fluids pass, and have the open/close mechanism. Valves are generally divided into 6 types. They include radiator valves and fan coil valves with the thermal radiation function, alarm valves that detect running water, emergency shutoff valves that shut off the fluid flow in an emergency. In addition, check valves used to stop fluids are included, and some are also referred to as foot valve and ballcock. Depending on the valve type for each application, there are difference in the ways of stopping the fluid flow, flow-rate adjustment, supported opening/closing frequencies, etc. Furthermore, the applicable temperature and pressure vary depending on the material, making a difference in the pressure loss that is important for fluid control. Therefore, it is necessary to select the item according to the application, the type of fluid and the environment.