| 摘要 |
<p>A remote water heating system has an injection pump which passes the supply through a flow regulator valve interconnected with a pressure regulator. The valve and regulator have chambers controlled by diaphragms and connected to a pressure vessel contg. water and an air cushion. Both the flow regulator and the valve incorporate springs attached to the respective diaphragms, and acting as nominal value members. The primary side of the return line is connected to a baffle chamber in the flow regulator valve and also to the spring loaded side of the diaphragm in the pressure regulator. The input line to the pump is connected to the outlet from the baffle chamber of the pressure regulator.</p> |
