Patent Number: 6,916,012

Title: Sanitary drain valve design

Abstract: A valve for sampling a process from a tank or conduit includes an internal cavity in communication with at least one inlet and an outlet. A valve actuating rod includes a sealing tip attached to one end thereof. The valve actuating rod is movable to open and close the inlet to the internal cavity. Furthermore, a seal is provided to isolate the valve actuating rod and the outside environment from the process. The seal is formed on the process side of the bottom wall of the internal cavity in order to ensure that the process material, cleaning material, steam, etc. drains completely out of the internal cavity of the valve.

Inventors: Newberg; Douglas A. (Plainsboro, NJ)

Assignee: NL Technologies, Ltd.

International Classification: F16K 27/00 (20060101); F16K 27/07 (20060101); F16K 51/00 (20060101); F16K 41/00 (20060101); F16K 41/10 (20060101); F16K 041/10 ()

Expiration Date: 07/12/2022