Double-seat valve having a diaphragm

US11193595B2 · kind B2 · utility

Assignee

• GEA Tuchenhagen GmbH · DE

Inventors

• Jens Burmester · Grambek, DE
• Jörg Pieplow · Lübeck, DE
• Stephanie Tegtmeyer · Hamburg, DE

Key dates

• Filing date: Jul 10, 2018
• Grant date: Dec 7, 2021
• Expiry date: Jul 31, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16K41/12
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A double-seat valve includes a housing having a passage between first and second connections. First and second valve disks are arranged in a housing internal space. A leakage space formed in the passage in the valve closed position is sealed off by the second valve disk. A hollow rod connected to the first valve disk has a leakage channel connecting the leakage space and a housing part. A cleaning gap is formed between the second valve disk and a passage wall. A housing opening is sealed with a diaphragm that separates the housing part from the internal space. A section of the first valve disk is received in an opening contour in the passage in the valve closed position, and delimits a cut-out in the first valve disk, in which the second valve disk is received in the valve open position.