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The station normally has one or more of the following parts: Heat exchanger - to split primary and secondary side of the system; Control valve - to regulate the flow through the heat exchanger; Heat meter - to measure energy consumption and allocate costs; Strainer - to remove particles that could block heat exchanger or control valve
Backflow prevention device. The simplest, most reliable way to provide backflow prevention is to provide an air gap.An air gap is simply an open vertical space between any device that connects to a plumbing system (like a valve or faucet) and any place where contaminated water can collect or pool.
A remote base station [1] is a common name for an amateur radio auxiliary station that is controlled and operated from a remote location. Most remote base stations have similar features to any other Amateur radio station but can be controlled over a direct wired connection or the internet, or by radio. In many ways, remote base stations ...
A valve hall is a building which contains the valves of the static inverters of a high-voltage direct current plant. The valves consist of thyristors , or at older plants, mercury arc rectifiers . Mercury arc rectifiers are usually supported by insulators mounted on the floor, while thyristor valves may be either supported by insulators or hung ...
An isolation valve is a valve in a fluid handling system that stops the flow of process media to a given location, usually for maintenance or safety purposes. [1] They can also be used to provide flow logic (selecting one flow path versus another), and to connect external equipment to a system. [2]
WW-Zulauf = Warmwasser-Zulauf = Hot water input KW-Zulauf = Kaltwasser-Zulauf = Cold water input Temperaturregler =Temperature regulator Abgang = Outlet Mengeneinstellung = Volume control. A thermostatic mixing valve (TMV) is a valve that blends hot water with cold water to ensure constant, safe shower and bath outlet temperatures to prevent ...
A relief valve DN25 on cooling water pipe from heat exchanger Schematic diagram of a conventional spring-loaded pressure relief valve. A relief valve or pressure relief valve (PRV) is a type of safety valve used to control or limit the pressure in a system; excessive pressure might otherwise build up and create a process upset, instrument or equipment failure, explosion, or fire.
The effects a variable flow system had on the selection of control valves, was not initially realized. A control valve was selected by using the same K v calculation, and the bypass on a 3-port valve blocked, giving a 2-port valve. It was not that simple. This is because our K v calculation K v = flow rate [m 3 /h] / ΔP [bar