Siemens VKF41.100 Butterfly ValveFor use as a control or shut-off valve in heating, ventilation and air conditioning systems, e.g:In closed circuitsFor 2-position controls (open/closed)For boiler and chiller sequencing circuitsTo open or close the flow to a heat exchanger or to complete plant sectionsIn applications where minimal leakage through the fully closed valve is allowable
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