Ventilkammervæg med satellitventilsæde

摘要

A valve assembly comprising a main valve body having an inlet flow passage and at least one outlet flow passage and a flow chamber extending between the same. The main valve body has a valve seat surrounding the inlet flow passage. The valve body having an opening in alignment with the inlet in the inlet flow passage. The valve body has an annular shoulder surrounding the opening. A diaphragm is disposed within the flow chamber and sealingly engages the shoulder and movable between open and closed positions with respect to the valve seat. A valve operator is mounted on the valve body for moving said diaphragm between the open and closed positions. The main valve body has a side wall and a side wall opening therein in communication with the flow chamber. The side wall has a side wall valve seat formed therein surrounding the side wall opening. A satellite body is mounted on the main valve body and has a satellite flow chamber therein in communication with the side wall opening and the flow chamber in the main valve body. A diaphragm is disposed in the satellite valve body and is movable between open and closed positions with respect to the side wall valve seat. A valve operator is carried by the satellite valve body for moving the diaphragm in the satellite flow chamber between open and closed positions with respect to the side wall seat.