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Ball valves with drainage have, unlike traditional "ball valves", an additional drainage valve on the side of the valve in threaded or flanged design. Drainage ball valves therefore serve the same purpose as a regular ball valve for shutting off pipelines, but the mentioned side drainage screw allows the circuit to be drained.
Ball valves with drainage differ from standard ones in threaded or flanged design by having an additional drainage valve on the side of the valve. Drainage valves serve the same purpose as a regular ball valve for shutting off pipes. The side drainage screw then allows the circuit to be drained. This function is often used to drain garden water systems before winter. Ball valves with drainage can also be motorized using Belimo actuators. More than 26 years with you!
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