초록 ▼

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. Fu

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.

대표청구항 ▼

1. A valve for draining a process from a tank or conduit, comprising:a valve body; a first inlet formed in said valve body; an outlet formed in said valve body; an internal cavity formed in said valve body and in communication with said first inlet and said outlet, said internal cavity being at leas

1. A valve for draining a process from a tank or conduit, comprising:a valve body; a first inlet formed in said valve body; an outlet formed in said valve body; an internal cavity formed in said valve body and in communication with said first inlet and said outlet, said internal cavity being at least partly defined by a bottom wall having an upwardly facing surface; a diaphragm, said diaphragm having a first side facing the process and a second side facing away from the process; a sealing tip; a valve operating rod, said valve operating rod being directly or indirectly connected to said second side of said diaphragm, said valve operating rod being movable to move said sealing tip into sealing contact with said first inlet into said internal cavity to form a first seal for sealing the internal cavity from communication with the process; a second seal, said second seal being formed between said upwardly facing surface of said bottom wall of said internal cavity and said first side of said diaphragm to isolate said valve operating rod and the surrounding outside environment from the process.