Abstract: An aseptic valve construction including a valve body having an inlet flow passage and at least one outlet flow passage. The valve body has a valve seat surrounding the inlet flow passage and has an opening therein in alignment with the inlet flow passage and in communication with the inlet flow passage and with the at least one outlet flow passage. A shoulder providing a shoulder seat surrounding the opening is provided in the valve body. A diaphragm is disposed in the valve body and has a surface adapted to be moved into engagement with the valve seat and another surface in engagement with the shoulder seat. The diaphragm has a cylindrical portion extending between the surface engaging the valve seat and the surface engaging the shoulder seat. The cylindrical portion has a length and a constant inner diameter and a constant outer diameter along its length for preventing the cylindrical portion from buckling or wrinkling.

Abstract: 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.

Abstract: In an aseptic valve construction, a valve body having an inlet flow passage and at least one outlet flow passage, said valve body having a valve seat surrounding the inlet flow passage, said body having an opening therein in alignment with the inlet passage and in communication with the inlet passage and with said at least one outlet passage, said body having a shoulder providing a shoulder seat surrounding said opening, an actuator sleeve adapted to be secured to said valve body, a shaft, means mounting said shaft in said sleeve to permit axial movement of said shaft in said sleeve, a diaphragm removably secured to said shaft, said diaphragm having a portion movable into engagement with the valve seat surrounding the inlet passage, diaphragm actuator means engaging said shaft for causing axial movement of said shaft for moving said diaphragm between open and closed positions with respect to said valve seat whereby in a closed position said diaphragm interrupts the flow of a liquid from the inlet passage thro