Patent ID: 11931864
Assignee: CLEMENTINA CLEMCO HOLDINGS, INC.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 0:
1. A metering valve for introducing media into a pressurized fluid, the metering valve comprising:
a housing;
media passaging extending through the housing, the media passaging including a media inlet for receiving media and a media outlet for dispensing media toward the pressurized fluid, the media passaging defining a flow path extending from the media inlet to the media outlet and configured to permit flow of media along the flow path; and
a plunger movably disposed within the housing, the plunger including a plunger head, the plunger movable between a closed position in which the plunger head forms a seal to prevent flow of media through the media passaging and an open position in which the plunger head permits flow of media through the media passaging;
wherein the seal formed by the plunger head when the plunger is in the closed position includes a first sealing interface at a first location on the flow path and a second sealing interface at a second location on the flow path, the second location being downstream along the flow path of the first location;
wherein the plunger head includes a section free of a sealing interface between the first and second sealing interfaces along the flow path.